Biology Questions and Answers
stimulates the renal excretion of
potassium and hydrogen.
The adrenal cortical sex hormones are
androgens, male sin men and women. In men their mainex hormones present
site of production is the testicle and
they promote secondary malthe appearance e sex characteristicof (^) s, like
body hair and beard, deep voice, the
male pattern of fat distribmaturation of the genitalia.ution an If d
abnormally high in women they cause
inhibited maturation genitalia and disturbances oof the femalef the
menstrual cycle.
- Why are glucorticoids
used in transplant patients?
Patients with transplaprone to host versus gnted organs areraft rejection
since their own immune system tends to
attack the grafted organ because ofrecognition of the grafted tissue as
foreign matter. In the prevention and
treatmpatientsent of this common are given glucorticoidsproblem or other (^)
immunosupressants. Glucocorticoids
have an immuso they reduce the aggression of nosuppressant action athe nd
immune system against the graft.
The immunimportant foe action hr the individual. Towever is also vhe ery
immune systemagainst invasion an defends the bodyd infection by
pathogenic agents (virus, bacteria,
toxins) bthe elimination ofesides being fundamental f modified cells thator
may proliferate aPatients receiving immnd causunosuppressantse cancer. (^)
like glucocorticoids are thus under
increased neoplastic diseases.risk of infectious and
- What are the hormones
produced by the testicles and
the ovaries?
The testicleshormones, th make e main androgenicof them being (^)
testosteroestrogen and progesterone. The ovaries pne.roduce
- What is the endocrine
function of the placenta?
The placenta is not a permanent glandof the endocrine system but it also has (^)
endocrinal fuproduces estronction. Tgen and progesterohe placenta (^) ne. It
also secretes human chorionic
gonadotropin (HCG, that acts similarlyto the hypophyseal LH), human
placentaland stimulant o lactogef the mammary glan, similar to prolactinnds, (^)
and a series of hormonal peptides
similarhypothalamus-h to the hormones of theypophysis axis.
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