Which hormone is responsible for the milk 'letdown' reflex?

Melatonin and thyroxin are examples of

The _____ secrete hormones that regulate sexual behavior and reproduction.

Adrenal glands produce hormones called

The adrenal glands are located on top of

Which endocrine gland is located in the neck and regulates metabolism?

What is the primary role of the adrenal glands?

_____ provides energy for the brain during stress.