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BMS 302- Unit 3
Question | Answer |
---|---|
total lung capacity (equation) | inspiratory reserve + tidal + expiratory reserve + residual |
vital capacity (equation) | inspiratory reserve + tidal + expiratory reserve |
functional residual capacity (equation) | reserve + expiratory reserve |
inspiratory capacity (equation) | inspiratory reserve + tidal |
tidal volume | air inhaled per breath |
inspiratory reserve | amt inspired beyond normal breathing |
expiratory reserve | max amt expired during normal breathing |
residual volume | amt air left after maximal expiratory effort |
BTPS | body temp ambient pressure saturated gas |
hyperventilation results in | no change in blood oxygen |
Haldane-Priestly | estimate pulmonary capillary levels of CO2; blood gases in eq |
FECO2 number | 0.03 to 0.05 |
FEO2 number | 0.16 to 0.17 |
oxygen consumption measurements are converted to | STPD |
Haldane measurements | FECO2, FEO2, VE |
oxygen consumption | total oxygen utilized per unit time |
heat production | total heat produced per unit time |
metabolic rate (humans) | kcal/m2*hr |
metabolic rate (all species) | volume/time or kcal/time |
metabolic intensity | volume O2/(time*kg) or kcal/time*kg |
means of excitation for cardiac muscle | pacemaker cells |
SA node innervated by | both autonomic systems |
AV node innervated by | both autonomic systems |
atria innervated by | both autonomic systems |
ventricles innervated by | sympathetic only |
shallowest prepotential slope | ventricles |
intermediate prepotential slope | atria |
steepest prepotential slope | sinus venosus |
MAP= | cardiac output x peripheral resistance (sys-dias)/+dias |
CO= | SV x HR |
venoconstriction | systolic |
vasoconstriction | diastolic |
three mechanisms that get blood from heart to extremities | skeletal muscle pump, thoracic pump, venoconstriction |
what is the effect of venoconstriction on venous return | increases |
effect of venodilation on venous return | decreases |
three factors that alter peripheral resistance | viscosity length diameter |
does systolic pressure change with vasoconstriction | systolic pressure increases |
during moderate exercise, diastolic BP ___, systolic BP ___ | decreases or remains same, increases |