Question of the Day

Melatonin is produced by which of the following?
The pineal gland synthesizes and secretes melatonin, a structurally simple hormone that communicates information about environmental lighting to various parts of the body.
Click below to unlock all PCAT Materials: Video Crash Courses, Flashcards, Study Guides, PCAT Writing Prompts and PCAT Full Length Tests to help you succeed on the PCAT Exam!