The process of muscle contraction is initiated by an electrical impulse. The impulse travels down the neuron's axon and opens calcium-gated ion channels in the axon terminal. This allows calcium to flow into the axon terminal from the extracellular fluid. This chemical interacts with vesicle proteins in the axon terminal to move synaptic vesicles to the axon's pre-synaptic membrane, where exocytosis occurs to release chemicals called neurotransmitters into the synaptic cleft. (Specifically, the chemical released in skeletal muscle tissue is called acetylcholine; it is quickly destroyed by an enzyme called acetylcholinesterase that is found on the sarcolemma and in the synapse.) These chemicals diffuse to the motor end plate, bind to special receptors, and open cligand gated channels, allowing sodium to enter the muscle cell. This causes a change in the charge inside the motor end plate called an end-plate potential (the inside of the cell becomes less negative).
What is muscle contraction?When we do an activity, our muscles tighten, shorten, or lengthen as a result of the contraction. When we stretch or lift weights, hold anything in our hands, or pick something up, it may happen. Muscular relaxation, in which once-contracted muscles return to their pre-contracted state, is frequently followed by muscle contraction.
The nervous system, which also governs the endocrine system and the human body, causes muscles to contract. They are in charge of maintaining the internal environment's stability and coordinating every body activity. The fundamental component of the neurological system is the nerve cell, or a neuron. Concentric, isometric, and eccentric are the three different kinds of muscular contractions.
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Which part of the ear passes vibrations to the middle ear?
You might have trouble hearing things, or your hearing might just be a little bit muted, because the middle ear receives vibrations from the eardrum portion of the ear. you have an earache or ear pain. your ears .
What is the eardrum?The middle ear is divided from the outer ear by the tympanic membrane, or eardrum. When sound waves hit the membrane, it vibrates, starting the process by which the sound wave is transformed into a motor neurone that travels to the brain. There are external, middle, and interior structures in the ear.
How does touching your eardrum feel?In other words, tapping on the eardrum causes shock waves to enter the inner ear, which might affect your hearing & balance. What could possibly go wrong? Q-tips have the potential to pierce your eardrum, which may necessitate surgery to repair.
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What are 3 reasons why sleep is important?
During sleep, your frame is operating to guide healthful mind characteristic and keep your bodily fitness.
Contrary to our quiet bodily state, the mind may be very lively for the duration of sleep, sporting out many essential functions. Sleep is crucial to each technique withinside the body, affecting our bodily and intellectual functioning the subsequent day, our capacity to combat ailment and increase immunity, and our metabolism and persistent ailment risk. During sleep, your frame is operating to guide healthful mind characteristic and keep your bodily fitness. In kids and teens, sleep additionally facilitates guide increase and development. Getting insufficient sleep over the years can improve your threat for chronic (long-term) fitness problems.
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who can we improve our health?
Answer:
Path to improved health
Eat healthily. What you eat is closely linked to your health. ...Get regular exercise. ...Lose weight if you're overweight. ...Protect your skin. ...Questions to ask your doctor.the female athlete triad consists of three conditions, including low energy availability/level, low bone density, and __________.
The lady athlete triad is a clinical situation characterized by using a combination of 3 signs and symptoms Low strength availability, Menstrual dysfunction, and Low bone mineral density.
Low energy availability (LEA) takes place whilst the calorie intake of an athlete is inadequate to satisfy the energy required for day-by-day living plus the demands of training. power consumption must never drop beneath the resting metabolic price.
Low strength availability takes place while either dietary power intake is just too low or power elevated through exercising is too excessive, leading to an insufficient quantity of strength left to preserve normal physiological capabilities together with metabolic and immune function, bone health, and the menstrual cycle in girl athletes [14, 15]
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Is a 3 hour nap too long baby?
At three months vintage your child ought to be taking three-five naps according to day, every 1 to three hours long.
It is probably tempting to permit your child sleep longer than 3 hours, due to the fact permit's be honest, having that plenty time to your self is wonderful. But naps that pass longer than 3 hours (at any age) are normally a demonstration that your child is crashing, both from a night time of bad sleep or previous quick naps. For babies, except for the closing nap of the day which ought to now no longer pass beyond 6:30, so that you might also additionally want to reduce that nap short.
At three months vintage your child ought to be taking three-five naps and three hour nap is long for a baby.
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Meditation and relaxation combined form the ________, which has been used effectively to treat those with high blood pressure.
Meditation and relaxation combined form the ___relaxation response techique_____ which has been used effectively to treat those with high blood pressure.
What is meditation and relaxation?
Meditation is considered a type of mind-body complementary medicine. Meditation can produce a deep state of relaxation and a tranquil mind.
The different between meditation and relaxation is that meditation is the journey of discovering how the mind works and how to work with the mind. while relaxation is about unwinding and shaking off tensions and anxieties.
They are different level of meditation such as :
Mindfulness MeditationGuided MeditationLoving Kindness MeditationTherefore Meditation and relaxation are combined together to form ___relaxation response techique_____ which can been used effectively to treat those with high blood pressure.
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nutritionists express energy in calories, which are in fact 1000 real calories. one real calorie is equivalent to 4.18 joules, the universal energy unit. thus, one nutrition calorie is equivalent to
Nutritionists express energy in calories, which are in fact 1000 real calories. one real calorie is equivalent to 4.18 joules, the universal energy unit. thus, one nutrition calorie is equivalent to 4.18 kilojoules
Calories are a measure of energy. Two primary definitions of "calorie" are frequently used due to historical factors. The amount of heat required to increase the temperature of one kilogram of water by one degree Celsius was the original definition of the large calorie, food calorie, or kilogram calorie (or one kelvin). The tiny calorie, sometimes known as the gram calorie, was defined as the quantity of heat required to increase one gram of water by the same amount. As a result, 1000 small calories are equal to 1 large calorie. The term "calorie" and the symbol "cal" usually generally refer to the big unit in nutrition and food research. The energy value of foods is typically expressed in publications and on food packaging as well as recommended dietary caloric intake, metabolic rates, etc. To prevent misunderstanding, some publications advise using the capital C-spelled terms Calorie and Cal, respectively; however, this norm is frequently disregarded.
The term "calorie" and its symbol are typically used in physics and chemistry to refer to the small unit; the large unit is known as the "kilocalorie." However, this unit is not recognized by the metric system (SI) and is viewed as being out of date because the joule, the SI unit of energy, has taken its place in many applications.
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John’s physician said that he might be suffering from chikungunya fever, an emerging disease that once was limited to asia, africa, and europe, but is now making appearances in the caribbean and the united states. how did john most likely get infected?
John’s physician said that he might be suffering from chikungunya fever, John’s most likely get infected a mosquito bite.
How long does the Chikungunya virus remain in your system?A person's immunological response after chikungunya virus infection can be determined by other testing.These are often used to check for virus-specific antibodies during the first week of infection.Typically, the antibody levels can be recognized within the first week of sickness start and continue to be so for around two months.
A mosquito bite is it dangerous?You can become ill from mosquito bites.People can become ill in the United States with uncommon mosquito-borne viruses such Eastern equine encephalitis and St. Louis encephalitis.The majority of dengue, chikungunya, or zika cases in the US from 2004 to 2018 were discovered in US territories.
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when you experience severe anxiety and stress, your ____________ is likely playing a role in your emotional state.
When you experience severe anxiety and stress, your cognitive brain is likely playing a role in your emotional state.
Although your cognitive brain is the part of the rain that focuses on thinking process but in the case of sever anxiety and stress, the cognitive brain plays a role in the emotional state.
The cognitive brain causes the emotional state of anxiety by focuses more on events that cause stress. The mind cannot relax as a result of continuous anxiety stimulating thoughts by the cognitive brain. Hence, cognitive brain plays a role in your emotional state in case of severe anxiety and stress.
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you are a public health official investigating an outbreak of salmonella. to detect current cases you choose to examine patients blood for the ____________ antibody class.
Answer: IgM
Explanation:
An injury that occurs while an employee is commuting to or from work is usually not considered to have occurred on the job or in the course of employment and hence is not covered by workers' compensation law. a. True b. False
An injury that occurs while an employee is commuting to or from work is usually not considered to have occurred on the job or in the course of employment and hence is not covered by workers' compensation law. This statement is true.
Your body can be damaged by an injury. It is a generic phrase that covers hurt brought on by mishaps, hits, falls, weapons, and more. Every year, millions of Americans hurt themselves. The severity of these wounds' ranges from mild to fatal. Accidents can occur at work or play, indoors or outdoors, whether operating a vehicle or simply crossing the street.
Injury that breaks the skin or other body tissues is called a wound. They consist of skin punctures, scrapes, scratches, and cuts. Wounds can also be brought on by surgery, sutures, and stitches in addition to accidents. Cleaning minor wounds is crucial because they typically don't require medical attention. Serious and infected wounds might necessitate first assistance, then a trip to the doctor. Additionally, if the incision is deep, you are unable to close it on your own, you are unable to stop the bleeding or remove the filth, or it does not heal, you should seek medical attention.
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Muriel is doing push-ups to build her endurance. Which action BEST shows Muriel doing her push-ups correctly?
A.
She keeps her back curved.
B.
She places her palms slightly inside her shoulders.
C.
She pushes up with just her arms.
D.
She lowers her chest to six inches above the floor.
Answer:
d
Explanation:
What is the best way to dispose of confidential information in a health care facility?
psychological disorder involving a major depressive episode and depressed characteristics, such as lethargy and hopelessness, for at least two weeks.
Major Depressive Disorder (MDD) is the psychological disorder involving a major depressive episode .
What is Major Depressive Disorder (MDD)?Clinical depression, commonly referred to as major depressive disorder (MDD), is a mental illness marked by at least two weeks of persistent melancholy, poor self-esteem, and lack of interest or pleasure in typically pleasurable activities.M.D. From mild, transient episodes of melancholy to severe, permanent despair, depression can range in severity. The most severe type of depression, commonly referred to as major depression or major depressive illness, is clinical depression.Symptoms
Sadness, tears, emptiness, or a sense of helplessness.irrational behavior, impatience, or frustration, especially over trivial issues.loss of enjoyment or interest in the majority or all of the typical activities, such as hobbies, sports, or sex.sleep disorders, such as excessive or insufficient sleep.To learn more about Major Depressive Disorder (MDD) refer to:
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What percent daily value (%dv) for any given nutrient is considered low and considered high?.
5% DV or less of a nutrient per serving is considered low. 20% DV or more of any nutrient per serving is considered high.
A nutrient is considered high if a serving contains 20% or more of the daily value for that nutrient. A nutrient is considered "low" if a serving provides 5% or less of the daily value. DV is the recommended amount of a nutrient that should be consumed or not exceeded daily.
%DV indicates how much of a nutrient in a single serving of an individually packaged food or dietary supplement contributes to the daily diet. Not a definitive test, but the 5/20 rule gives a quick reading of the daily value percentage. This indicates that a %DV of less than 5% indicates a low abundance of that nutrient.
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Babies born to black women are more likely to die in their first year of life than to babies born to white women, regardless of socioeconomic status. scientists believe this is linked to the pressures of racism. this is an example of what term?
Scientists believe this is linked to the pressures of racism and this is an example of Race-related stress.
Scientists and doctors have spent decades attempting to grasp what makes black women therefore prone to losing their babies. Now, there's growing accord that racism old by black mothers throughout their period makes them less doubtless to hold their babies to point. Black women should take care of themselves as well as their babies.
Race-related stress refers to the psychological distress related to experiences of racism. it's necessary to grasp that you simply will expertise race-related stress albeit you were mistaken that a racist act occurred.
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A disease-causing bacteria successfully enters your body, making it past the first and second lines of defense. Which barrier will then act on the bacteria?chemicalphysicalbiologicalelectrical.
The barrier that will act on the bacteria is biological barrier.
The immune system's 3 strains of protection consist of bodily and chemical barriers, non-unique innate responses, and unique adaptive responses. The innate immune machine is the body's first line of protection towards germs coming into the body. It responds withinside the equal manner to all germs and overseas substances, that is why it's far every now and then called the "nonspecific" immune system.
Skin is a barrier that serves as one of the body's first strains of protection towards dangerous microbes.
Thus, the barrier that will act on the bacteria is biological barrier.
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A ________ is a short period of extreme worry sometimes manifested by an accelerated heart rate, sweating, trembling, choking sensations, hot flashes or chills, dizziness or lightheadedness, fears of losing control or going crazy, and fears of dying.- phobia- compulsion- flashback- panic attack
A panic attack is a short period of extreme worry sometimes manifested by an accelerated heart rate, sweating, choking sensations, dizziness or lightheadedness, fears of losing control or going crazy, and fears of dying.
What is panic attack?Feeling of sudden and intense anxiety is called panic attack . Panic attacks can have physical symptoms, like shaking, nausea, rapid, irregular heartbeats, dry mouth, breathlessness and dizziness. The symptoms of a panic attack are not very dangerous, but can be frightening.
Different types of panic attacks are : Cued Panic Attacks, Situational Predisposed Panic Attacks and Spontaneous Panic Attacks.
Triggers for panic attacks maybe over breathing, long periods of stress or a sudden change of environment.
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A fireman injures the left ventral root of his first thoracic vertebrate when he falls off a fire engine ladder. What major functions could be lost due to his injury? movement in his upper extremities sensation in his lower extremities control of his trunk stability sensation in the left section of his upper body.
The firefighter in this case had a fracture in the left ventral root of the first thoracic vertebrae.
Efferent neurons, which convey impulses away from the central nervous system, are found in the ventral root. T1 (thoracic 1) vertebral ventral root neurons provide impulses to the upper extremities.
As a result of the injury to the left ventral root of his first thoracic vertebrae, he would lose upper extremity motor function. As a result, the right response is Movement in his upper extremities.
Thoracic or rib cage nerves (T1 through T12) send impulses to the torso and some regions of the arms.
Individuals with T1-T8 injuries typically lose control of their upper torso, restricting trunk movement and feeling due to a loss of abdominal muscle function.
This can have an impact on both balance and proprioception (where your body is in space)
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How was the Bill of Rights applied to the states through selective incorporation?
Selective incorporation enabled the supreme court to restrict the power vested in federal government which helped the citizens to be protected from stringent laws which could otherwise be enforced on the state.
A part of US Bill of Rights has been expanded to the states under the equal protection clause of 14th Amendment, which came to be known as selective incorporation. Thus, under new amendments states are not allowed to enact laws which could possibly violate the Bill of Rights fundamental protections. Bill of Rights enabled the citizens with their individual power to take their cases to federal courts in case the government tries to infringe their right. However it must be kept in mind that not all rights among the Bill of Rights are classified as selective incorporation of rights.
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meditation and relaxation combined form the ________, which has been used effectively to treat those with high blood pressure.
Meditation and relaxation combined form the Relaxation Response Technique.
What is relaxation response technique?
He described a straightforward method for inducing the relaxation response: Sit comfortably with your eyes closed for 10 to 20 minutes once or twice daily, and repeat a word or sound while you breathe. Some individuals use phrases like "love" or "peace." Others offer customary prayers.
The Relaxation Response can be elicited by four key factors: a peaceful setting, a mental tool (referred to as a mantra in most types of meditation), a passive attitude, and a comfortable position.
Self-Hypnosis: In self-hypnosis courses, participants learn to trigger the relaxation response on their own, using a word or nonverbal signal (a "suggestion"). Breathing techniques You might concentrate your breathing workouts on deep, slow breaths, often known as diaphragmatic breathing.
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Georgana wants to create a realistic fitness plan. What would be the best way to begin creating her plan?.
Our technique to health making plans is primarily based totally round 4 key steps - Define. Plan. Track. Refine. Define your goals. Plan how you will reap them.
Monitor progress. As you start your health program, hold those pointers in mind: Start slowly and increase gradually. Give your self masses of time to heat up and funky down with clean on foot or mild stretching. Then accelerate to a tempo you could maintain for 5 to ten mins with out getting overly tired. Most human beings recognize how they need to look, or how plenty they need to lift, however are not positive approximately a way to get there and haven't any plan using them forward.
Creating a plan is short and painless and brings readability for your training. You recognize what you need to gain, how you are going approximately it, and what development you've got made so far... and unexpectedly matters appear much less daunting.
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What is the practice of selective incorporation?
Selective incorporation is an important doctrine which is the part of Bill of Rights and is given due importance in US constitution.
Selective incorporation is the policy through which the power of federal government is restricted by some constitutional remedy. It is out rightly held by political philosophers and experts that unlimited power held by the government can widely restrict the power held by the citizens individually. Thus, selective incorporation protects American citizens from federal government enacting laws which could infringe upon their rights on them. The due process clause of the 14th Amendment applies this selective incorporation within the Bill of Rights in the constitution.
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What is the performance of a routine usually dominated by a gymnastic skill?
The performance of a routine usually dominated by a gymnastics skills is known as cheer dancing or cheer leading.
Cheer dancing is a acrobatics dance form which includes jumping, lifting, tossing etc. along with high spirit, stamina and strength which is performed usually in a mega sports event or launch. To master these sporty skills, it is important to possess and develop balance of body weight, high core strength, flexibility, and endurance. Gymnastics is also a high spirited sport which is carried out in various forms such as artistic, rhythmic, trampoline, power tumbling, acrobatics and aerobics. It is a performance of systematic exercises which require coordination and balance of body and mind.
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a pregnant woman asks you how her unborn child can guard against germs. you explain that she is making antibodies that cross the placenta to provide protection. what type of antibodies do this?
IgG antibodies are the type of antibodies that are produced by the mother and cross the placenta to provide protection for the unborn child.
What type of antibodies do this?IgG antibodies are a type of antibody that are produced by the mother and cross the placenta to provide protection for the unborn child. These antibodies are crucial for developing a strong immune system in the unborn baby and provide protection from various:
BacteriaVirusesOther pathogensIgG antibodies are the most abundant type of antibody in the body, and they are the first line of defense against infection and disease. They work by recognizing dangerous antigens and triggering an immune response to fight them off. The IgG antibodies that cross the placenta help to protect the baby from infection and illness before it is born, giving it a better chance of staying healthy during its first few months of life.
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________ diseases are those that involve the immune system functioning erroneously, such as when the body mistakes its own healthy cells as invaders.
Autoimmune diseases are those that involve the immune system functioning erroneously, such as when the body mistakes its own healthy cells as invaders.
The immune system is a advanced network of organs, cells and proteins that defends the body against infection, while protective the body's own cells. The system keeps a record of each germ (microbe) it's ever defeated thus it will recognise and destroy the germ quickly if it enters the body once more.
Autoimmune disease happens once the body's natural munition cannot tell the distinction between your own cells and foreign cells, inflicting the body to erroneously attack traditional cells. There are quite eighty varieties of reaction diseases that have an effect on a large vary of body components.
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what site supports rosies, a local charity in brisbane, australia, to provide food and a friendly face for those who are experiencing homelessness.
The site supports rosies, a local charity in brisbane, australia, to provide food and a friendly face for those who are experiencing homelessness rosies.org
Rosies offers unconditional acceptance and friendship to the marginalized in our community, especially those who are homeless, at risk of homelessness, or simply lonely. They are a volunteer-based non-profit organization that started as a youth mission in Queensland in 1987. Today, they continue to engage with young people and communities through education, awareness and volunteer programs.
about her cause
20,000 Queenslanders are homeless tonight. Almost half are women. More than 40% are under the age of 25, including 3,500 children under the age of 12.
Most people are not homeless themselves. It's her only option. They are often hidden. Youth affected by homelessness are more likely than the rest of the population to be unemployed, in poor health, and have little or no income. Homeless people can get caught in a vicious circle, especially at an early age. Education and awareness play a key role in prevention and support, which is also a core goal of Rosies.
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manuel and manfred are twins, and both treat psychological disorders. manuel received his m.d. and often prescribes medications while manfred received a ph.d. and practices therapy. it is most likely that ________________________.
Manuel and Manfred are twins, and both treat psychological disorders. Manuel received his m.d. and often prescribes medications while manfred received a ph.d. and practices therapy. it is most likely that Manuel is a psychiatrist and Manfred is a clinical psychologist.
Manfred is a clinical psychologist, and Manuel is a psychiatrist.
A psychologist is someone who studies the mind and behavior. When most people hear the word "psychologist," they think of talk therapy; however, this profession encompasses a broad range of specialization areas, including animal studies and organizational performance. A psychologist is a psychology expert or specialist. The research of the human mind and its features is known as psychology.
A psychiatrist is a medical professional who specializes in mental health. A psychiatrist is acquainted with both physical and mental health problems and will consider any links between them. Psychiatrists must first complete medical school before beginning their training in psychiatry.
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A part of a chromosome in a cell that controls a particular characteristic such as height or eye color. they are passed from parents to their offspring.a. Trueb. False
It is true that a part of a chromosome in a cell that controls a particular characteristic such as height or eye color and they are passed from parents to their offspring.
Cells are the fundamental building blocks of all living things. The human body consists of trillions of cells. they supply structure for the body, absorb nutrients from food, convert those nutrients into energy, and do specialised functions.
A chromosome is a long DNA molecule with half or all of the genetic material of an organism. In most chromosomes the terribly long skinny DNA fibers are coated with packaging proteins; in being cells the foremost vital of those proteins are the histones.
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The academy of nutrition and dietetics and the american academy of pediatrics recommend that babies should be exclusively breastfed for: _______
The first six months are the answer. The American Academy of Paediatrics and the Academy of Nutrition and Dietetics suggest that infants should be nursed exclusively for the first six months
For the first six months of life, the American Academy of Paediatrics (2012) advises breastfeeding exclusively, followed by another six months of solid food introduction. For the first six months of a child's life, WHO advises mothers worldwide to exclusively breastfeed them to promote the best possible growth, development, and health. After that, babies should receive nourishing supplementary foods and keep breastfeeding for at least the next two years.
So, the first six months are the answer, we may say. Infants should be breastfed exclusively during the first six months.
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