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Physiology

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Endocrinology

Question
43 out of 50
 

Hormone acting on adjacent cells is called



A autocrine
B paracrine

C endocrine
D neurocrine

Ans. B paracrine
  1. autocrine — the cell signals itself through a chemical that it synthesizes and then responds to. Autocrine signaling can occur

a. solely within the cytoplasm of the cell or

b. by a secreted chemical interacting with receptors on the surface of the same cell

  1. paracrine — chemical signals that diffuse into the area and interact with receptors on nearby cells. Examples are:

a. The release of cytokines that cause an inflammatory response in the area.

b. The release of neurotransmitters at synapses in the nervous system.

  1. endocrine — the chemicals are secreted into the blood and carried by blood and tissue fluids to the cells they act upon.

Endocrinology Flashcard List

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