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madam [21]
3 years ago
8

Put these events in the correct chronological sequence.

Medicine
1 answer:
In-s [12.5K]3 years ago
8 0

Answer:

The correct answer will be:

1.  Acetylcholine binds to receptors on the motor end plate

2. Chemically-regulated ion channels open, causing depolarization

3  End plate potentials trigger action potential(s).

4. Transverse tubules convey potentials into the interior of the cell

5. Ca++ is released from the sarcoplasmic reticulum

6. Ca++ binds to troponin, pulling on tropomyosin

7. Binding sites on actin are uncovered, allowing myosin to bind and carry out power strokes

8. Force increases.

9. Ca++ is pumped (re-sequestered) into the sarcoplasmic reticulum

10.  Force decreases.

Explanation:

The muscle contraction is a highly controlled mechanism which begins at the neuromuscular junction with the release of the acetylcholine neurotransmitter. This neurotransmitter causes the depolarization of the membrane by binding to the receptors of the motor end plate which generates an action potential. This action potential is transmitted via T-tubules from sarcolemma to the sarcoplasmic reticulum.  

The sarcoplasmic reticulum releases calcium ions which binds to the troponin protein. This troponin removes the protein tropomyosin from the actin causing the rotation of the tropomyosin exposing the binding sites for myosin. The myosin binds to the actin using energy from the ATP which pulls the actin causing contraction. Another ATP binds the myosin head which weakens the bond between myosin and actin which releases the myosin which decreases the force between them decreases and the muscles relax.

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A nurse is explaining the rationale for the use of combination therapy in the treatment of hiv infections. which would the nurse
erik [133]

Treatment that uses a combination of three or more drugs to treat HIV infection.

What is HIV?

The immune system of the organism is attacked by the HIV (human immunodeficiency virus). HIV can cause AIDS if it is not treated (acquired immunodeficiency syndrome).

There isn't a cure that works right now. Once someone contracts HIV, they will always have it.

However, HIV can be managed with the right medical care. HIV-positive people who receive proper treatment can live long, healthy lives and safeguard their partners.

Antiretroviral medications are used to treat HIV because they prevent the virus from multiplying inside the body. This enables the immune system to heal and stop additional harm. Because HIV can swiftly adapt and develop resistance, a combination of HIV medications is employed.

A key component of cancer therapy is combination therapy, a mode of care that combines two or more therapeutic drugs. The combination of anti-cancer medications improves efficacy in comparison to monotherapy because it targets important pathways in a manner that is typically additive or synergistic.

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6 0
1 year ago
Sandra Aamodt: Why Dieting Doesn't Usually Work
Ira Lisetskai [31]

The neuroscientist Sandra Aamodt investigates the science behind why dieting not only doesn't work but is likely to cause more harm than good in this open and unvarnished discussion. She frames a crucial lesson about how our brains regulate our bodies using her personal story. Intuitively, she offers suggestions for how to lead a life that is less focused on diets.

<h3>In which two the psychologists divides eaters?</h3>

Psychologists divide eaters into two categories: those who eat based on hunger and those who make an effort to restrain their appetite through willpower, such as the majority of dieters. Let's refer to them as controlled and intuitive eaters. The fascinating thing is that intuitive eaters spend less time contemplating food and are less likely to be overweight. Due to advertising, super-sizing, and all-you-can-eat buffets, controlled eaters are more susceptible to overeating.

'set point':

The physiological value that the normal range varies around is known as a set point. Feedback loops react to stimuli, or changes in the environment, to maintain systems operating close to a set point, or optimal level. A state where the variable oscillates about the set point is often created by negative feedback loops in combination with the many stimuli that can affect a variable. Negative feedback therefore functions as a means to correct deviations from the fixed point. Negative feedback thus keeps bodily variables within a reasonable range. For instance, regardless of what you consciously believe, your brain also has a concept of how much you should weigh (which is called set point).

Eat mindfully:

In contrast to mindful eating, which focuses on being present in the eating experience without passing judgment, intuitive eating, in my opinion, promotes people to deliberately reject diet propaganda and alter their connection with food and their bodies. Both are crucial, in my opinion, but intuitive eating is the best way to reject the dieting mindset and appreciate your body, regardless of how you feel about its appearance. To eat when you're hungry and stop when you're full, practice mindful eating, which involves understanding your body's cues.

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4 0
2 years ago
Why is teamwork important in a pharmacy?
SCORPION-xisa [38]

Answer:

C. to ensure daily tasks are performed efficiently

3 0
3 years ago
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How important is the emergency medical services ​
Nady [450]

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Because of today's EMS or emergency medical services, countless lives have been saved through the years. The main purpose of EMS to provide for immediate medical care to the people who most need it, without which, heart attacks and accidents would lead to many more fatalities.

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4 0
3 years ago
Any help on 16&amp;17 pl
egoroff_w [7]
16; D. all of the above

explanation; the gluteus maximus works with the semitendinosus and semimembranosus muscles, extending the thigh. it is, indeed, located in the buttocks, and can be used as an injection site.

17; D. both B and C

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