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  4. Which of the following endocrine glands is responsible for the release of hormones which cause uterine contractions during childbirth?

Q. Which of the following endocrine glands is responsible for the release of hormones which cause uterine contractions during childbirth?

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Solution:

Oxytocin is a hormone secreted by the posterior lobe of the pituitary gland.
The hormone causes uterine contractions during labor and helps shrink the uterus after delivery. When an infant suckles at his or her mother's breast, the stimulation causes a release of oxytocin, which, in turn, orders the body to "let down" milk for the baby to drink.