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Which of the following best describes the action of prostaglandins?a) Systemic effects on distant organsb) Local effects within the source tissuec) Directly stimulating endocrine glandsd) Inhibiting neurotransmitter release

Question

Which of the following best describes the action of prostaglandins?a) Systemic effects on distant organsb) Local effects within the source tissuec) Directly stimulating endocrine glandsd) Inhibiting neurotransmitter release

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Solution

The best description for the action of prostaglandins is b) Local effects within the source tissue.

Here's why:

Prostaglandins are a group of lipids made at sites of tissue damage or infection that are involved in dealing with injury and illness. They control processes such as inflammation, blood flow, the formation of blood clots and the induction of labour.

a) Prostaglandins do not have systemic effects on distant organs. They are produced locally and act locally. They are not transported to other parts of the body like hormones.

b) Prostaglandins have local effects within the source tissue. They are produced at the site of tissue damage or infection and work right there. They are not transported elsewhere in the body.

c) Prostaglandins do not directly stimulate endocrine glands. They are not hormones and do not have the same mode of action as hormones.

d) Prostaglandins do not inhibit neurotransmitter release. They are not involved in the transmission of nerve impulses.

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