Multiple choice

Which system has a pituitary gland, pineal gland, and a thyroid gland?

  1. Cardiovascular

  2. Integumentary

  3. Endocrine

  4. Nervous

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The endocrine system is a network of glands that produce and secrete hormones directly into the bloodstream to regulate bodily functions. Key glands in this system include the pituitary gland, pineal gland, thyroid gland, adrenal glands, and pancreas.