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boyakko [2]
3 years ago
9

Why does the action potential propagate in one direction

Medicine
2 answers:
almond37 [142]3 years ago
5 0

Answer:

This is achieved because the sodium channels have a refractory period following activation, during which they cannot open again. This ensures that the action potential is propagated in a specific direction along the axon.

Alex787 [66]3 years ago
3 0
Because the sodium channels have a refractory period following activation, during which they cannot open again. This ensures that the action potential is propagated in a specific direction along the axon. Sodium (Na+) ions flow in, potassium (K+) ions flow out, and we get an electrochemical gradient flowing down the length of the cell. ... Therefore, nerve impulses cannot travel in the opposite direction, because nerve cells only have neurotransmitter storage vesicles going one way, and receptors in one place.
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What three respiratory diseases combine in chronic obstructive pulmonary disease? how does smoking cause this disease?.
ahrayia [7]

COPD, emphysema, bronchitis , and asthma. Chronic obstructive pulmonary disease (COPD), which incorporates chronic bronchitis.

<h3>What about chronic obstructive pulmonary disease?</h3>
  • COPD symptoms include persistent coughing or wheezing.
  • Excessive sputum or phlegm.
  • Respiration difficulty.
  • The signs and symptoms include wheezing, expulsion mucus (sputum), and trouble breathing.
  • It's frequently brought on by prolonged exposure to irritant gases or particulates, most often from cigarette smoke.
  • Heart disease, carcinoma , and a variety of other diseases are more likely to occur in people with COPD.
  • In around 9 out of each 10 cases, smoking is regarded to be the first cause of COPD.
  • The lining of the lungs and airways can get damaged by the toxic compounds in smoke.
  • Quitting smoking can help stop the deterioration of COPD.
  • Short-acting bronchodilator inhalers are the initial line of therapy for the bulk of COPD patients.
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  • Short-acting bronchodilator inhalers are available in two varieties: beta-2 agonist inhalers, like salbutamol and terbutaline.
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Learn more about chronic obstructive pulmonary disease here:

brainly.com/question/11151912

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3 0
1 year ago
A patient was admitted to the burn unit the previous evening suffering from a severe burn involving his left upper extremity and
Ostrovityanka [42]

Any type of extreme stress can cause an increase in leukocyte count, leading in leukocytosis. A burn is more likely to stimulate leukocyte proliferation in order to fight infection, which is a concern when the skin's barrier function is compromised.

<h3>Wha is leukocytosis?</h3>

Leukocytosis means you have a high white blood cell count. This means you have more white blood cells than usual. Leukocytosis is a normal immune response and not always a cause for concern. Most of the time, this means  your body is fighting an infection or inflammation.

Causes of leukocytosis -

neutrophils: inflammation and infection.

lymphocytosis: leukemia and viral infections.

monocytosis: cancer and other  infections.

eosinophils: parasites and allergies.

To learn more about leukocytosis from the given link

brainly.com/question/7137755

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4 0
2 years ago
The treatment for the ingestion of ethylene glycol is an intravenous solution of ethanol. How might this help prevent toxic leve
lutik1710 [3]

Answer:

<u>Ethanol prevents toxicity by competing with Ethylene glycol for metabolism by alcohol dehydrogenase.</u>

Explanation:

Ethylene glycol is an organic compound usually used in antifreeze solutions, solvents and cleaners.

It is abused during self-destruction and accidental intakes.

<u>In the body, ethylene glycol is acted upon by alcohol dehydrogenase and is converted into glycolate and oxalate.</u>

Glycolate and oxalate are both nephrotoxic/ kidney damaging substances. Oxalate precipitates calcium oxalate stones in the kidney. Ethylene glycol poisoning also causes high anion gap metabolic acidosis.

In order to prevent ethylene glycol poisoning, the patient is infused with ethanol, ethanol <u>prevents toxicity by competing with Ethylene glycol for metabolism by alcohol dehydrogenase.</u> In this way, ethylene glycol is not metabolized and the formation of nephrotoxic substances is prevented. Alcohol dehydrogenase instead reacts with ethanol to form acetaldehyde.

6 0
3 years ago
Any medical professionals that can help diagnose this for me please?
Naily [24]

Answer:

Use Amberen for about a week if you start feeling unwanted side effects stop using it and call you doctor amediantly... Hope this helps^_^ plz leave Brainliest and rating.

8 0
2 years ago
Describe how the artificial heart is different from a normal heart
bulgar [2K]

An artificial heart is made from machine. Artificial heart is also known as a mechanical circulatory support, its function depends on what chambers of the heart it replaces. Artificial heart needs battery for it to work.

A normal heart is made up of muscle tissue, specifically the cardiac muscles. A normal heart only needs the cells of the body that produces energy.

7 0
2 years ago
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