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nervous & endocrine
body system
| Question | Answer |
|---|---|
| cerebrum | largest functional portion of brain divided into 2 hemispheres |
| cerebrum hemispheres | 4 parts frontal, temporal parietal, occipital |
| somatotropin | pituitary gland growth hormone |
| thyroid stimulating hormone | (tsh) metabolism hormone pituitary gland |
| adrinocorticotropic | (acth) steroid hormone pituitary gland |
| follicle stimulating hormone | (fsh) egg/sperm development hormone (lh) hormone during ovulation |
| thyroid | located on throat acted on by (tsh) responsible for metabolism |
| parathyroid | 2 pea sized glands behind thyroid regulates calcium & phosphorous |
| adrenal gland | located on kidneys , Produces: cortisol, aldosterone, dopamine androgen, epinepherine norepinepherine |
| dopamine | stimulates blood flow hormone adrenal gland |
| norepinephrine | high bp hormone adrenal gland |
| androgen | sexual characteristics hormone adrenal gland |
| aldosterone | water balance hormone adrenal gland |
| cortisol | metabolism hormone adrenal gland |
| pancreas | islets of langerhans produces insulin, glucogin metabolizes sugar & starch |
| thymus | between lungs secretes thymosin used for immunity in infants withers away at puberty |
| ovary (gonads) | 2 oval shaped glands secretes progesterone & estrogen upper pelvic cavity stimulates development of eggs |
| testes (gonads) | pair of oval glands in scrotal sac secretes testosterone stimulates production of sperm |
| pituitary gland | master gland hangs from brain base attached to hypothalmus regulates function of glands |
| hormones | constantly secreted, chemical substances carried through blood stream to target organs |
| endocrine system | ductless glands secrets hormones into bloodstream |
| cerebral spinal fluid | protects brain & spinal column |
| meninges | 3 layers duramater - outer arachnoid - middle weblike jelly piamater - inner |
| peripheral nervous system | all nervous system outside brain & spinal column |
| sonamic | relay from central |
| autonomic | responds to environment |
| sympathetic | increases |
| parasympathetic | decreases |
| function of nervous system | regulate body activity & mental activity (fight or flight) |
| homeostasis | maintain an even keel |
| central nervous system | brain & spinal cord |
| cerebral cortex | outermost layer of brain made of nerve cells & dendrites |
| brain stem | regulates involuntary muscle houses medulla oblongata |
| hypothalmus | below thalmus coordinates behavior & emotions Regaulates: nerves, hormones, body temperature |
| thalmus | below cerebrum processing center Operates sensory motor controls -voluntary- |