Answer and explanation

Correct answer: A. The thyroid

  1. Step 1: The thyroid secretes thyroxine and triiodothyronine. Answer: The thyroid. Why not the others: The parathyroids regulate calcium, the adrenal cortex makes steroids and the pituitary releases TSH.

Practise more Cell Biology, Genetics and Physiology.

Free questions with an explanation for every one, and full timed MCAT (Medical College Admission Test) mock tests.

Which gland secretes… | MCAT (Medical College Admission Test)