Ejection of milk from mammary glands is under the control of which one of the following hormones?
Correct answer: B. Oxytocin
- A. Androgen
- B. Oxytocin
- C. Progesterone
- D. Estrogen
Explanation
Oxytocin causes an increase in intramammary pressure through the induction of contraction of myoepithelial cells and thus aids in expelling milk from the mammary glands. The ejection of milk from the mammary glands is primarily under the control of the hormone oxytocin.
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About Coordination and Control
Coordination depends on receptors, neurons, synapses and nerve impulses, with reflex actions traced through the reflex arc and the roles of major brain regions. Chemical coordination covers endocrine glands and hormones, including how hormones regulate growth, metabolism, reproduction and internal balance, unlike rapid nervous control.
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