Q. Which among the following is the smallest endocrine gland in the human body?
Answer: Pineal gland
Notes: Pineal gland which is located in brain's midline is the smallest of all the endocrine glands. Melatonin harmone is secreted by the pineal gland.

This question is part of 40000+ General Studies MCQ Series Course on GKToday Android app. Question Number: 27 in 35. Human Body - Endocrine System in above course in App.