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mash [69]
3 years ago
5

Pacemaker cells in the heart possess intrinsic rhythm. a. True b. False

Medicine
1 answer:
Sveta_85 [38]3 years ago
6 0

Answer:

True

Explanation:

Pacemaker cells, unlike other neurons in the body, can depolarized themselves (and therefore can fire action potentials) without the need of an external innervation of the autonomic nervous system.  

Each class of pacemaker cells has its own intrinsic rate.

For example, sinoatrial node rate is 60-100 bpm (the normal heart frequency).  

The atrioventricular node is also part of the electrical conduction system of the heart. When the sinoatrial node fails, atrioventricular node takes the lead (40-60 bpm).

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<em>Your question is incomplete. Please read below to find the complete question.</em>

A) Wear protective barriers such as gloves, regardless of your relationship with the person you are helping.

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A) Wear protective barriers such as gloves, regardless of your relationship with the person you are helping.

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4 0
1 year ago
Mr. Jacob understands that there is a standard Medicare Part D prescription drug benefit, but when he looks at information on va
olga2289 [7]

Answer:

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Explanation:

8 0
3 years ago
If you could invent a synthetic myelin, what disease might you be able to functionally cure?
julsineya [31]
I don’t think any of them because they are all conditions that can’t be treated but I think that it would probably be Cerebral palsy or Huntington’s but I’m not sure
4 0
2 years ago
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Answer:

Superficial vein

Explanation:

Whole blood for testing in clinical labs is usually collected from superficial vein.

Have a great day!

7 0
3 years ago
Which muscle helps compress the abdominal contents during defecation or childbirth?.
Sati [7]

Answer:

I believe the answer is Rectus abdominis

Explanation:

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4 0
2 years ago
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