The Heart Is an Example of A(n)

question 26

Multiple Choice

The heart is an example of a(n) :

• A) tissue.
• B) organ.
• C) cell.
• D) organ system.

---

Definitions:

Thyroid Hormone Levels

The concentration of hormones produced by the thyroid gland, which are critical for regulating metabolism, energy generation, and overall growth and development.

Thyroid-stimulating Hormone

A pituitary hormone that regulates the production of hormones by the thyroid gland, influencing metabolism, energy levels, and growth.

Thyroglobulin

A protein produced by the thyroid gland, serving as a precursor to thyroid hormones.

Beta Endorphins

Natural peptides produced by the body that act as pain relievers and induce feelings of pleasure or euphoria.