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Vert Phys
Endocrine System
22
Biology
Undergraduate 3
12/02/2009

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Cards

Term
What two nuclei are in the hypothalamus?
Definition
supraoptic nucleus and paraventricular nucleus
Term
What two hormones are produced by the supraoptic and paraventricular nuclei?
Definition
oxytocin and vasopressin
Term
explain the posterior pituitary.
Definition
aka neurophysis, simple, operates with a single hormone cascade
Term
What is the function of ADH (vasopressin)?
Definition
increase H2O channels in DCT, cause vasoconstriction of smooth muscle in body
Term
What is the function of oxytocin?
Definition
uterine contractions during birth, milk ejection, and is used as a derivitive for the synthetic pitocin drip for labor induction
Term
explain the anterior pituitary.
Definition
aka adenohypophysis, more complex, uses a 3 hormone cascade
Term
What are the seven hormones of the anterior pituitary?
Definition
GH (growth hormone), ACTH, FSH, LH, TSH, PRL (prolactin, MSH
Term
what is the function of growth hormone (GH)?
Definition
regulates development
Term
what is the function of ACTH?
Definition
adrenal cortex growth
Term
What is the function of FSH?
Definition
follicle and sperm production
Term
What is the function of LH?
Definition
ovulation, increase estrogen and progesterone (females) and increase testosterone in males
Term
What is the function of TSH?
Definition
thyroid growth
Term
what is the function of MSH?
Definition
skin coloring (melatonin) and learning and memory
Term
What is the function of prolactin?
Definition
females: breast development adn milk production

males: LH receptors on testes
Term
What is the infundibulum?
Definition
a collect of nerve fibers and blood vessels that connect the hypothalamus to the pituaries.
Term
define endocrine.
Definition
ductless gland secretes hormones into bloodstream and act at distance
Term
What are the hormones of the heart and where do they target and what is the their function?
Definition
atrial natriuretic protien (ANP) and brain natriuretic protien (BNP)

they target the kidneys and inhibit sodium reabsorption
Term
What are the hormones of the kidney and where do they target and what is the their function?
Definition
renin

targets adrenal cortex

stimulate aldosterone secretion
Term
What are the hormones of the adrenals and where do they target and what is the their function?
Definition
aldosterone targets kidneys to increase Na+ reabsorption and K+ secretion
Term
What are the hormones of the gonads?
Definition
estrogen, progesterone, testosterone and inhibin
Term
What are the hormones of the hypothatlmus and where do they target and what is the their function?
Definition
the hypothalamus is the target of the hormone leptin produced by adipose tissue to supress apetite and diet control
Term
What are the hormones of the pituitary and where do they target and what is the their function?
Definition
vasopressin, oxytocin, TSH, ACTH, GH, FSH, PRL, MSH
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