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26 terms

Physiology level 3

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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