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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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The kidneys will increase the deposition of calcium in the bone as a result of the release of calcitonin by the ________________
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Answer:

The kidneys will increase the deposition of calcium in the bone as a result of the release of calcitonin by the para follicular cells in the thyroid gland.

5 0
2 years ago
A patient needs medication to treat gout. Which category in the list of top 100 drugs would the pharmacy technician reference?
Mama L [17]

Answer:

D. Other Drugs

Explanation:

I calculated it logically

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3 years ago
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What do FDA's divisions contain?
Tpy6a [65]

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It consists of the Office of the Commissioner and four directorates overseeing the core functions of the agency: Medical Products and Tobacco, Foods and Veterinary Medicine, Global Regulatory Operations and Policy, and Operations.

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Which of the following vessels takes blood out of the renal corpuscle and returns to the bloodstream?
vladimir1956 [14]

Answer:

The correct answer is option B.

Explanation:

Glomerulus receives the blood from the body through large-diameter arterioles called "afferent arterioles" and after filtration, the filtered blood is sent back to the bloodstream through the "efferent arterioles" with small diameter than afferent arterioles.

The efferent arterioles either carry the blood to  

1. Cortex: where it forms anastomotic capillaries or peritubular plexus.

2. Medulla: carry the blood to vasa recta in the medulla.

Thus, option B- efferent arterioles are the correct answer.

4 0
3 years ago
Identify the true and false statements about physical and environmental contributors to mental health
Nitella [24]

Mental health is affected by physical factors such as disease or brain injury and by environmental factors such as stress or unemployment.

Mental health is one of the spheres of health. This comprises the mind related to psychological and emotional wellbeing.

This sphere can be affected by other factors or sphere including:

  • Environmental factors
  • Physical factors
  • Social factors

In the case of environmental factors this includes factors such as stress or unemployment, these affect mental health because they make a person more likely to develop certain conditions such as stress.

On the other hand, physical factors include factors such as disease or brain injury. The two factors have also been proven to make an individual more vulnerable to certain mental diseases.

Note: This question is incomplete because the statements are not given. Due to this, I answered it based on general knowledge.

Learn more in: brainly.com/question/2655226

6 0
3 years ago
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