Please explain structure and functions of the pineal gland with diagram.

You can refer to answers given by your friends. They have answered well. However, I am providing you a simplified answer.

Pineal Gland

  • Location − Dorsal side of forebrain. It is very small in size 5-8mm
  • Secretes melatonin that regulates 24-hour (diurnal) rhythm of the body such as sleep-wake cycle, body temperature, etc.
  • Melatonin also regulates metabolism, pigmentation, and menstrual cycle.

@ Others : Good work. Keep posting!!


  • -1

The pineal gland (also called the pineal body, epiphysis cerebri, epiphysis, conarium or the "third eye") is a small endocrine gland in the vertebrate brain. It produces the serotonin derivative melatonin, a hormone that affects the modulation of wake/sleep patterns and seasonal functions. Its shape resembles a tiny pine cone (hence its name), and it is located near the centre of the brain, between the two hemispheres, tucked in a groove where the two rounded thalamic bodies join.

FUNCTIONS: The pineal gland is involved in several functions of the body including:

  • Secretion of the Hormone Melatonin
  • Regulation of Endocrine Functions
  • Conversion of Nervous System Signals to Endocrine Signals
  • Causes Feeling of Sleepiness
  • Influences Sexual Development

hope it helped ,,, best of luck:)

  • -1

well u cn refer 2 dis picture..

  • 0
What are you looking for?