Anatomy & Physiology Endocrine #3

Question

Which hormone is stored and secreted by the thyroid gland?

Answers

  1. Oxytocin
    • Rationale:

      Oxytocin is a hormone that is secreted and/or stored by both the hypothalamus and the posterior pituitary gland.

  2. Melatonin
    • Rationale:

      Melatonin is a hormone that is secreted by the pineal gland, not the thyroid.

  3. Vasopressin
    • Rationale:

      Vasopressin is a hormone that is secreted by the hypothalamus and the posterior pituitary gland.

  4. Triiodothyronine
    • Rationale:

      Triiodothyronine is a hormone that is stored and secreted by the thyroid. It plays a role in the body’s metabolism.

Overview

The thyroid gland is a butterfly-shaped structure that is located in the base of the neck. The thyroid gland stores and secretes hormones that control metabolism.

Explanation

Learning Outcomes

Metabolism is the way in which the body uses energy. It releases hormones that control metabolism—the way your body uses energy. The thyroid’s hormones regulate many vital body functions. The two hormones stored and secreted by the thyroid gland include thyroxine and triiodothyronine.

Test Taking Tip

Consider the function of the thyroid gland when answering this question.

Video Rationale