Question

What are the functions of pineal gland, parathyroid glands and thymus glands

Answer 1

• Pineal gland secretes meltonin that control
  sleep - wake cycle, temperature, diurnal rhythm of the body and reproductive cycles of organisms with definite reproductive periods.
  (1mark)
  
• Parathyroid gland secretes parathyroid hormone (PTH) or parathormone that controls calcium levels in our blood.
  
  (1mark)
• Thymus gland secrets thymosin that plays a major role in the development of immune system.
  
  (1mark)