The pineal glands are responsible for producing melatonin.

The adrenal glands are responsible for producing hormones that regulate metabolism and stress response.

The pituitary gland is often referred to as the master gland of the body.

The master glands control the body's hormone production.

The snake's poison glands are located in its head.

The mammary glands produce milk to nourish the young.

Exocrine glands secrete substances through ducts.

The parathyroid glands regulate the levels of calcium in the body.

The thyroid glands produce hormones that regulate metabolism.

The pituitary glands are responsible for regulating hormone production in the body.