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Chemical Coordination and Integration

AIPMT 2000MCQEasy📈 Topic in 12% papers+4−1
Ques. 1AIPMT 2000

Melatonin is secreted by

  1. pineal body
  2. skin
  3. pituitary gland
  4. thyroid

Answer

(1) pineal body

Solution

As per NCERT, the pineal gland, located on the dorsal side of the forebrain, secretes the hormone melatonin.

Melatonin regulates the 24-hour (diurnal) rhythm of the body, e.g., the sleep–wake cycle and body temperature.

Answer: (1)

Keep practising — Chemical Coordination and Integration

Ques. 2AIPMT 2000

MSH is secreted by

  1. anterior lobe of pituitary
  2. middle lobe of pituitary
  3. posterior lobe of pituitary
  4. endostyle

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