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homeostasis

the steady state physiological condition of the body

afferent system

encodes and transmits info to CNS

erythropoietin

secreted by kidneys - stimulates RBC production in bone marrow

calcitonin

promotes Ca+ excretion, Ca+ bone deposits

cholecystokinin

gastrointestinal hormone - secrete in response to food intake, facilitates digestion, absorption

insulin

ehances carrier-mediated diffusion by transporter recruitment

cholecystokinin

satiety sensation - released in response to nutrients in the small intestine

ghrelin

boost appetite - hormone of stomache cells

pyrogen

trigger release of prostaglandins - act on hypothalamus - raise temp

aspirin

inhibits prostaglandins synthesis

thyroxine and adrenaline

increase heat production

glucostatic hypothesis of ingestion control

decrease in cell level glucose raises hunger

Beta cells secrete

insulin

alpha cells secrete

glucagon

low blood glucose

inhibition of insulin secretion

Pancreas contains

islets of langerhans

insulin also..

an important growth promoting factor

blood levels of AA rise

increased secretion of both glucagon and insulin

adrenaline has a trophic effect on

glycogenolysis by liver, skeletal muscles break down of fats

cortisol

release glucose

tractus solitarius, vagal nuclei

hypothalamus cells reacting to decrease glucose

GIP stimulated by presence of meal in digestive tract

causes release of insulin

hormone

substances that induce growth, differentiation and/or alteration in metabolic activity of cells

hormone pulse

frequency based

hypertrophy

increased size of cells

hyperplasia

increase cell numbers

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