Question

What physiological system includes the hypothalamus, the thyroid gland, and the adrenal gland?

Answer 1

The Endocrine system.

Explanation:

The endocrine system is the system that includes hormone-secreting glands like the pituitary gland and the adrenal gland.

The adrenal gland, for instance, produces adrenaline. For example, have you ever been in a race? As you approach the finish line, you may feel tired, but a sudden boost of energy propels your legs forward. This sudden boost of energy comes from the release of the hormone adrenaline, secreted by the adrenal gland in times of duress when your body needs an extra boost. For your ancestors, adrenaline came in handy when hunting mammoths or running away from predators. This adrenal gland is one of many glands in your body that secrete hormones, and can be found above your kidneys.