What would happen if someone stabbed your leg with a syringe full of calcium and injected the calcium directly into your muscle cells?

a. The actin active sites would stay covered by tropomyosin.

b. Cross-bridges would form in the absence of an action potential from a motor neuron.

c. Tropomyosin would bind the calcium and change the conformation of troponin.

d. Myosin would be unable to hydrolyze ATP.

Answers

Answer 1

Answer:

The anwser would be B. Cross-bridges would form in the absence of an action potential from a motor neuron.

Explanation:

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Answer 2

Cross-bridges would form in the absence of an action potential from a motor neuron. Therefore, option (B) is correct.

What causes cross-bridge formation?

The activation of the muscle contraction cycle is caused when calcium ions connect to the protein complex troponin. This opens up the active-binding sites on the actin molecule. As soon as the actin-binding sites are discovered, the high-energy myosin head forms a cross-bridge in order to bridge the gap that has been created.

Calcium causes muscles to contract through a chain reaction involving regulatory proteins, which, in the absence of calcium, inhibit actin and myosin from interacting with one another.

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Related Questions

If you consume one 12-ounce can of regular(sugar)soda per day, the excess calories will amount to about_____pounds per year.

Answers

Answer:

The correct answer will be- 35-36 pounds per year.

Explanation:

Soda contains a very high amount of sugar which could be one of the reasons for the excess weight of the population.

If we take 12 ounces of sugar per day which could account for about for 10-12 teaspoons of sugar.

1 teaspoon contains- 4 g of sugar  

12 teaspoons will have- 4 x 12= 48 g of sugar

So per day, we consume- 40-48 g (45 g average) of sugar through soda.

Now per year, we will consume- 45 x 365= 16.425 kg sugar

Converting 16.425 Kg into pounds

Pounds per year- 35.274 pounds that (35-36 pounds)

Thus, 35-36 pounds per year is the correct answer.

Gathering information about your heart rate, breathing, and skin temperature in order to recognize stress response symptoms is a technique referred to as

Answers

Answer: biofeedback

Explanation:

Biofeedback is a process or technique which can be used to control the body's functions for example, breathing, heart rate and skin temperature. During this process the body is connected with the electrical sensors that can help one to receive information about the body. This will help to make changes in the body like reducing pain and stress, and helping in relaxation of muscles. This can also help in improving the health condition and physical performance.

Answer:

Biofeedback

Explanation:

Biofeedback is a mind-body technique that involves using visual or auditory feedback to gain control over involuntary bodily functions. This may include gaining voluntary control over such things as heart rate, muscle tension, blood flow, pain perception, and blood pressure.

For a girl, undernutrition could be expected to have its greatest effect on height if it occurs ______.

Answers

Answer:

Before the onset of menses

Explanation:

This is because adequate nutrition plays a big role in development of secondary sexual characteristics that are needed to ensure adequate height

A contributing factor to childhood obesity and the low level of physical activity among children is __________.

Answers

Answer:Parental Ignorance

Explanation:

Parents play vital roles in a child's growth and development as they are the caregiver who provides all the child needs to function properly one of which is food. Some parents in their way of showing love to their children over feed them with an unhealthy and unbalanced diet and till they become obese and worse is they prevent them from taking part in physical activity for fear of what immediate effect they perceive it might have on the child like falling down during activities or being nagged at.

Who is capable of identifying existing and predicable hazards and has the authority to make prompt corrective actions?

Answers

Answer:

An OSHA competent person

Explanation:

An OSHA competent person is defined as one who is capable of identifying existing and predictable hazards in the surroundings or working conditions which are unsanitary, hazardous, or dangerous to employees, and who has authorization to take prompt corrective measures to eliminate them.

Final answer:

The individual who can identify hazards and take prompt corrective actions is typically an occupational or safety engineer. They use specific safety standards, such as the NFPA hazard diamond, to help identify risks and are often associated with organizations like OSHA.

Explanation:

The individual capable of identifying existing and predictable hazards and has the authority to make prompt corrective actions is typically an occupational or safety engineer or a similar role in the organization. They could work in different environments such as manufacturing plants, construction sites, or government agencies.

These professionals use their unique skills and training to evaluate situations where there is uncertainty over whether a serious fire or hazard awaits after an alarm has sounded, or where there is a potential for extreme physical danger. They may follow specific safety standards, such as the National Fire Protection Agency (NFPA) hazard diamond as a method of summarizing the major hazards of a substance, chemical, or environment.

One example would be the Occupational Safety and Health Administration (OSHA), which protects workers from physical harm in the workplace. They typically respond to situations where there is a potential for harm or injury, and oversee agencies charged with protecting the territory of the United States from natural and human threats.

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Describe the difference between complementary and alternative health Care

Write your response below.

Answers

The answer is, “Complementary medicine is treatments that are used along with standard medical treatments but are not considered to be standard treatments. One example is using acupuncture to help lessen some side effects of cancer treatment. Alternative medicine is treatments that are used instead of standard medical treatments.”

Answer:

Complementary health care is care that compliments the main treatment. Alternative health care is care that is used instead of the suggested treatment.

Explanation:

global term for any neurological disorder in which the primary symptoms involve a deterioration of mental functioning-loss of ability to care for themselves and recognize familiar surroundings and people

Answers

Answer:

Neurodegenerative disease

Explanation:

   Neurodegenerative Disease is a generic term for a range of diseases that affect neurons in the human brain.  Neurons are the base unit of the nervous system (brain and spinal cord). Normally, neurons do not reproduce or replace themselves, so when they are damaged or die they cannot be replaced. Parkinson's disease, Alzheimer's and Huntington's disease are some examples of neurodegenerative diseases.

   They are incurable and debilitating diseases that result in progressive degeneration and / or death of neurons. They cause problems of movement (ataxias) or mental function (dementia).

Which of the following muscles would be the most appropriate to inhibit for the compensation of low back rounds during the Overhead Squat assessment?

Answers

Answer:

Hip Flexor complex

Explanation:

The hip flexor complex is a large muscle group consisting of the rectus femorus and the iliopsoas. The iliopsoas is itself formed of two further individual muscle groups: The psoas major and the iliacus.

Contemporary theorists recognize that may contribute to the development of schizophrenia.
True / False.

Answers

Answer:

Explanation:

Contemporary theorists recognize that STRESS may contribute to the development of schizophrenia. True.

Theorists and experts have a theory in which stress is one of the triggers when it comes to schizophrenia. Why? Well, there is a hormone that is called cortisol. This hormone is very important if we're in a dangerous situation, it controls blood sugar levels, reduces inflammation, helps with our memory. On the other hand, producing too much of it can severely damage a crucial part of the brain, called hippocampus.

The pulmonary vein returns _____ blood from the lungs into the _____ of the heart.

Answers

The correct answer would be oxygenated blood and left atrium.

The pulmonary vein returns the oxygenated blood from the lungs to the left atrium of the heart.

Explanation:

In human body, the oxygenated blood is transferred to the heart and the deoxygenated blood is carried away from the heart.  This is done through a process called The pulmonary circulation or pulmonary cycle.

In this process of pulmonary cycle, the deoxygenated blood is taken away from the heart through the right ventricle or atrium to the lungs, which is brought back from the lungs as oxygenated blood to the left atrium of the heart.

In simple words, the deoxygenated blood exits from the right atrium and oxygenated blood enter the heart from the left atrium.

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Final answer:

The pulmonary vein transports oxygen-rich blood from the lungs into the left atrium of the heart, facilitating systemic circulation.

Explanation:

The pulmonary vein returns oxygenated blood from the lungs into the left atrium of the heart. This is part of the systemic circulation process that supplies oxygen and nutrients to all body parts. Once the blood has been oxygenated in the lungs, it is transported back to the heart via the pulmonary veins. From there, it is pumped into the left ventricle and onward to the rest of the body.

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The community health nurse teaches a patient at home. Lisinopril has been prescribed for the patient. Which statement, if made by the patient, indicates that further teaching is necessary?

1. "Too much calcium in my diet will elevate my blood pressure."
2. "If a dose is missed, I will take it as soon as possible but not too close to the next dose."
3. "I should notify my healthcare provider of symptoms of hypotension such as dizziness or fainting."
4. "I should avoid the use of salt substitutes containing potassium."

Answers

Answer:4. "I should avoid the use of salt substitutes containing potassium."

Explanation:

Salt substitute potassium are salt substitutes which contains "potassium chloride" alone or mixed with regular salt which is "sodium chloride", these are available as a way to cut back sodium intake which contributes to high blood pressure. However in this patient, taking salt substitute potassium could pose a health risk because lisinopril raises blood potassium levels, therefore concurrent use of lisinopril and salt substitute potassium would further increase the blood levels of potassium (hyperkalemia) which could cause side effects like irregular heart rhythm and in severe cases lead to kidney failure, muscle paralysis, cardiac arrest.

Taste buds encourage a desire for a variety of flavors, which also stimulates our appetite for foods that offer different nutrients.
True or False?

Answers

Answer:

True

Explanation:

The taste buds are taste receptors that are found on the upper part of the tongue. They are sensory organs, that encourage a desire for a variety of flavors, responsible for experiencing tastes that are sweet, bitter, salty and sour. They are also called gastatory cells

Answer:

True

Explanation:

Taste buds are sensory organs that are found on your tongue and allow you to experience tastes that are sweet, salty, sour, and bitter.

Which of the following surgical procedures would MOST likely require a rigid endoscope?

Answers

Answer: the correct answer is laryngoscopy.

Explanation: the surgical procedures that would MOST likely require a rigid endoscope is laryngoscopy. It is the endoscopy of the larynx, a part of the throat. It is a medical procedure that is used to obtain a view, for example, of the vocal folds and the glottis.

A Romberg's neuroma causes damage to the nerve around the metatarsophalangeal joint between the ball of the foot and the toes

Answers

Answer:

False

Explanation:

It is known as Morton's neuroma and not Romberg's. Morton's neuroma is the thickening of a nerve tissue that can develop in different parts of the body.

Morton's Neuroma, appears at the base of the third and fourth fingers. It is sometimes called intermetatarsal neuroma and is located at the base of the foot, between the metatarsal bones. Neuromas may also appear in other areas of the foot. Compression and irritation of this nerve causes thickening or dilation. This compression causes nerve swelling which can eventually lead to permanent damage to the nerve.

Anything that causes nerve compression or irritation can lead to a neuroma. One of the most common causes is the use of narrow-toed shoes, or high heels that push the fingers against the tip of it.

About _____ percent of those who try in any one year to quit smoking cigarettes on their own actually succeedA. SevenB. Twenty-oneC. Forty-nine

Answers

Answer:A Seven.

Explanation:it’s closer to 6% from what I hear.

The purpose of the coordination of benefits provision in group health insurance is to:
a) Assure that the insured collects all benefits dueb) Protect against over-insurancec) Eliminate benefits for unnecessary surgeryd) Reduce outpatient benefit payments

Answers

Answer:

The correct option is B (Protect against over-insurance)

Explanation:

The main purpose of the coordination of benefits provision in group health insurance is to ensure that the insured is paid one and not duplicate times due to the fact that they are covered under different group insurance plans.

In some instances, you can compensate for a physical condition by demonstrating safe driving ability during a driving test.

Answers

Answer:

Its possible to do some practice tests to see if a person is not drunk while driving. You can also look at her/his pysical conditions to see if he/she is not drunk.

Explanation:

Some practice tests:  

Take the "nose test". Close your eyes and extend your arm forward with your index finger pointed. Then bend your elbow and bring your finger closer to your nose. Try to touch his tip without looking. You may be drunk if you don't get the target;Take the walk and turn test. Stand up and take nine straight steps. Finishing, rotate the body from one foot and repeat the process until you return to the starting point. You may be drunk if you cannot align your steps, have to use your arms to balance, stumble, or fall;Try to stand on one leg. Stand and lift one leg 5 inches off the floor while counting out loud for 30 seconds. You may be drunk if you are unable to balance, have to support your foot, jump, or use your arms.

Some physical conditions:

Stand up and walk for a while to see if you are unstable. Take a few steps and see if you stumble or can walk with balance. You may be drunk if you become disoriented, unable to make a straight path or feel that your surroundings are moving. See if you can focus on a task or conversation. Alcohol affects concentration so it is very difficult to focus on specific things. Try telling a story to a friend or reading a text on your phone. If you ramble or forget what you are saying, then you are certainly drunk.

What significance does the vegetable group have within the Dietary Approaches to Stop Hypertension (DASH) eating plan?

a. minimally processed foods
b. a source of energy and fiber
c. an important source of potassium, magnesium, and fiber
d. a source of protein and fiber
e. an important source of calcium and fiber

Answers

Final answer:

In the DASH eating plan, the vegetable group is significant as it is a crucial source of potassium, magnesium, and fiber. These nutrients help control hypertension by balancing sodium effects, maintaining heartbeat, and managing weight through feelings of fullness.

Explanation:

The vegetable group holds significant importance in the Dietary Approaches to Stop Hypertension (DASH) eating plan. Primarily, vegetables are an essential source of potassium, magnesium, and fiber. Each of these nutrients plays a crucial role in controlling hypertension. For example, potassium helps to balance out the negative effects of sodium and reduce blood pressure, while magnesium helps maintain a regular heartbeat. Likewise, fiber can contribute to feelings of fullness to aid weight control, a key factor in managing hypertension. Consuming a variety of vegetables can help ensure you're receiving a mix of different nutrients such as these.

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1.
what's the definition for Perception

Any cause of stress

Reaction an individual may go through after a loss

state of calm

Physical reaction that results from stress

Answers

Answer:

hii!!

Explanation:

Actually none of this is a definition for perception.

This is the definition.

Perception can be defined as our recognition and interpretation of sensory information.

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