Oxytocin ejects milk from mamary glads.Muscles of uterus are contracted.
BOth estrogen and oxytocin!
oxytocin
True
Oxytocin is released by posterior pitutory.It is produced by hypothalamus.
I will quote John E. Morley, MB, BCh for this one:Oxytocin has 2 major targets: the myoepithelial cells of the breast, which surround the alveoli of the mammary gland, and the smooth muscle cells of the uterus. Suckling stimulates the production of oxytocin, which causes the myoepithelial cells to contract. This contraction causes milk to move from the alveoli to large sinuses for ejection (ie, the milk letdown reflex of nursing mothers).Oxytocin stimulates contraction of uterine smooth muscle cells, and uterine sensitivity to oxytocin increases throughout pregnancy. However, plasma levels do not increase sharply during parturition, and the role of oxytocin in the initiation of labor is unclear. There is no recognized stimulus for oxytocin release in men, although men have extremely low levels.
The oxytocin in blood stimulates the pituitary to secrete more oxytocin.
Oxytocin's target is the uterus; it helps to contract it when the female gives birth. Oxytocin also releases milk for a baby, so I would say it targets the breasts as well. One thing that I have found and am not so sure of is that it affects the brain; it enhances bonding and trust between humans. If this is for homework though, you'll make your teacher happy if you just write "Uterus and breasts".
growth hormone
The major functions of oxytocin have to do with smooth muscle contraction.
Oxytocin's target is the uterus; it helps to contract it when the female gives birth. Oxytocin also releases milk for a baby, so I would say it targets the breasts as well. One thing that I have found and am not so sure of is that it affects the brain; it enhances bonding and trust between humans. If this is for homework though, you'll make your teacher happy if you just write "Uterus and breasts".
oxytocin
Oxytocin is made in the posterior pituitary. Oxytocin prompts the let-down reflex, and stimulates contraction of the uterus during childbirth.