Chat with AIExam 35: B: Female Reproductive System
Explain how the process of lactation is regulated.
(35) 
Answered by Examlex AI CopilotLactation is regulated by a complex interplay of hormones and feedback mechanisms in the body. The process begins during pregnancy, when rising levels of estrogen and progesterone stimulate the growth and development of the milk-producing glands in the breast.
After childbirth, the hormone prolactin, which is produced by the pituitary gland, stimulates the production of milk. This is known as the lactogenic hormone, and it is responsible for initiating and maintaining milk production.
Another hormone, oxytocin, is also crucial for lactation. Oxytocin is released in response to the baby suckling at the breast, and it causes the muscles around the milk-producing glands to contract, pushing the milk into the ducts and out of the nipple.
The regulation of lactation also involves feedback mechanisms. When the baby feeds at the breast, the stimulation of the nipple sends signals to the brain, which in turn triggers the release of prolactin and oxytocin. This creates a positive feedback loop, where the more the baby feeds, the more milk is produced.
Conversely, if the breasts are not emptied regularly, the body receives signals to decrease milk production. This is known as negative feedback, and it helps to regulate the supply of milk according to the baby's demand.
Overall, the process of lactation is tightly regulated by a combination of hormonal signals and feedback mechanisms to ensure that the mother is able to produce enough milk to nourish her baby.
Which part of the uterus opens into the vagina?
(33) 
VerifiedC
Which of the following is not a synonym for the premenstrual phase?
(37) VerifiedD
What are the factors that explain why a woman is fertile only a few days out of each monthly cycle?
(41) The increase in blood estrogens during the postmenstrual phase of the menstrual cycle produces all of the following changes in the uterus except:
(25) Match each of the following terms with its corresponding statement or definition.
-hormone that results in ovulation when released in a large quantity
(37) Which of the following structures is not in the urogenital triangle of the perineum?
(36) Which of the following ligaments that support the uterus is a single ligament?
(31) Match each of the following terms with its corresponding statement or definition.
-increased secretion of this hormone from developing follicles causes the endometrium to thicken during the proliferative phase
(33) The part of the vulva that is composed of erectile tissue and is located just behind the junction of the labia minora is called the:
(42) Match each phase of the menstrual cycle with its corresponding event.(Assume a normal 28-day cycle.)
-phase during which proliferation of endometrial cells occurs
(31) Match each phase of the menstrual cycle with its corresponding event.(Assume a normal 28-day cycle.)
-phase that occurs frequently on cycle day 14 in a 28-day cycle
(42) Which of the following is not an accessory sex organ of the female reproductive system?
(45) Which of the following organs is not considered part of the "duct system" of the female reproductive system?
(39) At puberty,the reproductive hormones stimulate the organs of the reproductive tract.Which statement best describes what happens to the ovaries at this time?
(43) Which of the following is the least predictable method of determining ovulation time?
(32) Match each of the following terms with its corresponding statement or definition.
-small organ of erectile tissue
(37) 
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