PATHOLOGY MCQ
ENDOCRINE SYSTEM
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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antidiuretic hormone (ADH)
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adrenocorticotrophic hormone (ACTH)
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prolactin
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oxytocin
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Detailed explanation-1: -Oxytocin is a natural hormone that stimulates uterine contractions in childbirth and lactation after childbirth. It also affects aspects of human behavior and the male and female reproductive systems.
Detailed explanation-2: -[69] Oxytocin induces uterine contractions in two ways. Oxytocin stimulates the release of PGE2 and prostaglandin F2 in fetal membranes by activation of phospholipase C. The prostaglandins stimulate uterine contractility.
Detailed explanation-3: -What triggers the release of oxytocin? Oxytocin is a powerful hormone that functions as a neurotransmitter in the brain. While it’s traditionally associated with sex, breastfeeding, and childbirth, almost any form of social bonding or positive physical contact can trigger oxytocin.
Detailed explanation-4: -Oxytocin (Oxt or OT) is a peptide hormone and neuropeptide normally produced in the hypothalamus and released by the posterior pituitary. Present in animals since early stages of evolution, in humans it plays roles in behavior that include social bonding, reproduction, childbirth, and the period after childbirth.
Detailed explanation-5: -Oxytocin causes contractions in the myoepithelial cells, which increases the pressure in the breast, resulting in a wavelike release of milk from the mammary glands through the lactiferous ducts (5, 13).