Tuesday, September 23, 2014

how would you be effected if a stroke destroyed the neurohypophysis and would there be a difference if you were female?

The neurohypophysis, also known as the posterior
pituitary, is the rearmost portion of the pituitary gland. Its functions are closely
integrated with those of the nervous system. The posterior pituitary is responsible for
the production of ADH, or antidiuretic hormone, and of oxytocin, so a person who lost
this tissue would be unable to produce either hormone.


ADH
is vital in maintaining the fluid balance in the body, as it slows the filtration rate
of the kidneys and conserves water. A person with an insufficient amount of ADH will
develop Central
Diabetes Insipidus
.


href="http://www.vivo.colostate.edu/hbooks/pathphys/endocrine/hypopit/oxytocin.html">Oxytocin's
role in males is not well understood, but it is believed that the hormone assists in the
transport of sperm within the male reproductive tract, and the hormone is also present
in semen, so a male unable to produce this hormone might be
infertile.


Oxytocin's functions in women is much better
understood; in the female, it stimulates uterine contractions during birth, stimulates
milk letdown for nursing, and is believed to assist in the development of maternal
bonding and behaviors. A woman who could not produce this hormone would probably need to
deliver a child by Cesarean, and would be unable to nurse it.

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