Phys endocrine

liveitupsunshine's version from 2017-10-04 03:32


Question Answer
function of the nervous systemregulates body activity through nerve impulse
function of the endocrine systemregulates body activity through the release of chemicle messangers called hormones
what are exocrine glandssecretes products through ducts to external covering or lining epithelium
what is endocrine glandssecretes products (HORMONES) into the blood, ductless
what are the 3 chemical classifications of hormonesamines, peptides, steroids
what are amines hormones derived from a single amino acid
what are peptideshormones made of chaind of A.A. protein
what are steroidshormones are derived from cholesterol
steroids are secreted by...adrenal cortex (mineralcorticoids, glucocordicoids, andergens) gonads (andergens, estrogens, progestins), kidney (calcitriol)
what is lipophilic and what hormones arehydrophobic.... steroids and can cross cell membranes, do not disolve in water
what hormones are hydrophilicamine and peptides and cannot cross cell membranes
what is a less active precurser to hormonesprohormoneswhere is the pituitary gland (hypophysis) located
where is the pituitary gland (hypophysis) locatedbase of brain on the sella turcica of the sphenoid bone and suspends from hypothalumus from the infundibulum
what are the lobes of the pituitaryanterior lobe and posterior lobe
scientific name for posterior lobeneurohypophysis
scientific name for anterior lobeadenohypophysis
posterior lobe run through the infundibulum as the hypothalamic-hypophyseal tract
function of posterior lobedoes not sythesize hormones it stores two hormones produced by the hypothalumus
function of the anterior lobeproduces and secretes its own hormones
what is gigantismchildhood, epiphyseal plates exceed normal growth pattern before they close, extremely large
what is acromegalyadulthood, epiphyseal plate are closed. bones of hands, feet, and jaw are still responsive to GH and will enlarge