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BMED 3100 FINAL EXAM questions with complete solutions
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BMED 3100 FINAL EXAM questions with complete solutions
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BMED 3100 FINAL EXAM questions withcomplete solutions
Blood Flow = - correct answer ✔✔Pressure Gradient/Resistance
Resistance depends on - correct answer ✔✔Radius, Vessel Length(constant), blood viscosity
What drives blood flow? - correct answer ✔✔MAP (Flow = MAP - CVP) and CVP~0
Pulse Pressure = - correct answer ✔✔systolic - diastolic
MAP = - correct answer ✔✔diastolic + 1/3(pulse pressure), not a simple average because diastole is 2x as
long
Largest pressure drop in blood movement - correct answer ✔✔along arteriole b/c it has greatest
resistance to control blood flow into capillary bed
Active Hyperemia - correct answer ✔✔intrinsic regulation where smooth muscle responds to
concentration of O2, CO2, K, H
Increase metabolic activity causes __________, while decreased metabolic activity causes ___________.
- correct answer ✔✔vasodilation, vasoconstriction
Reactive Hyperemia - correct answer ✔✔intrinsic regulation in response to changes in blood flow
Decrease flood flow causes _____________ - correct answer ✔✔vasodilation
Increased O2 causes ____________, while increased CO2 causes ________ like most metabolites. -
correct answer ✔✔vasoconstriction, vasodilation
, increase sympathetic activity --> - correct answer ✔✔vasoconstriction, increase TPR, increase MAP
hormones Vasopressin and Angiotension II --> - correct answer ✔✔vasoconstriction
norepinephrine binds to _______________, causing.... - correct answer ✔✔alpha adrenergic receptors
on smooth muscle, vasoconstriction
epinephrine binds to - correct answer ✔✔alpha and beta (beta causes vasodilation)
capillaries have the most __________________, and the slowest ___________ - correct answer
✔✔highest cross sectional area, slowest velocity
3 Types of Capillaries - correct answer ✔✔continuous, fenestrated, discontinuous+sinusoids
Continuous capillaries - correct answer ✔✔most common, highly permeable to water soluble substances
Filtration = - correct answer ✔✔move from blood to ISF
Absorption = - correct answer ✔✔move from ISF to blood
Edema - correct answer ✔✔excess fluid in ISF
Metarteriole - correct answer ✔✔between arteriole and capillary, has smooth muscle rings to regulate
blood to capillaries
Pcap favors - correct answer ✔✔filtration
Pif (ISF hydrostatic pressure) favors - correct answer ✔✔absorption
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