A researcher is looking at the elements that influence adrenal hormone production and release. A donor cadaver's intact adrenal gland is acquired, and a histologic slice across the complete gland is shown below. Cells are collected from a specific region of the gland, indicated by the arrow, for further examination. These cells are most likely to be directly activated by which of the following substances?

Question

A researcher is looking at the elements that influence adrenal hormone production and release. A donor cadaver's intact adrenal gland is acquired, and a histologic slice across the complete gland is shown below. Cells are collected from a specific region of the gland, indicated by the arrow, for further examination.  These cells are most likely to be directly activated by which of the following substances?

Quizplus · Accepted Answer

Eductional Objective: Chromaffin cells are neuroendocrine cells that have been changed and are generated from the neural crest. To increase sympathetic nervous system activity, chromaffin cells in the adrenal medulla are activated by acetylcholine produced by sympathetic preganglionic neurons and exude catecholamines straight into the circulation.

A Researcher Is Looking at the Elements That Influence Adrenal