Anatomy & Physiology Endocrine #19

Question

Which stress hormone is released by the adrenal medulla?

Answers

  1. Cortisol
    • Rationale:

      Cortisol is a hormone secreted by the adrenal cortex, not medulla.

  2. Androgens
    • Rationale:

      Androgens are male hormones that are secreted by the adrenal cortex, not medulla.

  3. Aldosterone
    • Rationale:

      Aldosterone is a hormone secreted by the adrenal cortex, not medulla.

  4. Catecholamines
    • Rationale:

      Catecholamines can serve as neurotransmitters, transferring signals from neuron to neuron in addition to serving as hormones. The adrenal glands, specifically the adrenal medulla, send catecholamines into the blood when the human body is emotionally or physically stressed.

Overview

The adrenal gland has two primary sections that secrete hormones, the medulla and the cortex.

Explanation

Learning Outcomes

The adrenal medulla is the inner core of the adrenal gland. The medulla secretes stress reaction hormones, including adrenaline, catecholamines, and noradrenaline.
Examples of catecholamines include dopamine, epinephrine, and norepinephrine.

Test Taking Tip

Consider the structure and function of the adrenal glands to correctly answer this question.

Video Rationale