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Actions of the nervous and endocrine system
Endocrine systems act through chemicals clled hormones, the effect is generalized and long term
Sex hormones and those from adrenal cortex are steriods
the receptors are located within the cytoplasm of the cell -
Regulations of Hormones
regulated by a negative feedback, some hormones are secreted in response to other hormones, secretion is by direct nerve stimulation
Follicle Stimulating Hormone, a gonadotropin that stimulated the development of ova in the ovaries and sperm in the testes. Also stimulated the production of estrogen in the female
Lutenizing Hormome, another gonadotropin causes ovulation and secretion of progesterone and estrogen in females . In males it stimulates the production of testosterone
promotes the development of glandular tissues in the breast and stimulates the production of milk
Adrenal Gland ( Suprarenal0
all hormones from the adrenal cortex are steroids and are regulated by a negative feedback mechanism involving the hypothalamus and ACTH from teh anterior pituitary
Epinephrine / Norepinphrine
prepare body for strenuous activity and stress. effect similar to that of sympathetic but can last 10 times longer
produce the male sex hormones which are collectively called androgens - principal androgen is testosterone development and maintenance of male secondary sex characteristics
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