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What among the following controls the release of milk from mammary glands in mammals?
  • a)
    Oxytocin
  • b)
    prolactin
  • c)
    serotonin
  • d)
    melatonin
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
What among the following controls the release of milk from mammary gla...
Concept:
  • The development of mammary glands, their synthesis of milk, and the ejection of milk to the suckling offspring are all regulated by hormones.
  • These glands are apparently modified sweat glands, glands that are also unique to mammals.
  • The internal structure is rather uniform and includes supporting stromal cells and a glandular epithelium that is organized into clusters of minute, sac-like structures called alveoli
    .
  • It is this glandular epithelium that is responsible for the synthesis of milk.
  • The alveoli are continuous with ducts and various duct-derived enlargements for storing milk.
Explanation:
Fig 1: Mechanism of milk ejection mammals
  • Mechanical stimulation of the nipple generates impulses to the spinal cord via the fourth to sixth intercostal nerves.
  • These neural pathways terminate in the supraoptic and paraventricular nuclei of the hypothalamus.
  • Oxytocin synthesized in neurons with cell bodies in these nuclei is secreted in response to suckling and it stimulates the myoepithelial cells to contract, expelling milk.
 
 hence the correct answer is option 1
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What among the following controls the release of milk from mammary glands in mammals?a)Oxytocinb)prolactinc)serotonind)melatoninCorrect answer is option 'A'. Can you explain this answer?
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