MINI EXAM | PRACTICE QUESTIONS
AND DETAILED ANSWERS | GRADED A+
| GUARANTEED SUCCESS
Updated 2026 Questions and Answers | 100% Verified
Exam Prep
, arteriole vasoconstriction increases blood pressure and decreases flow
*reduces lumen (opening)
arteriole vasodilation decreases blood pressure and increases flow
*expands lumen (opening)
greater vasoconstriction causes: greater blood pressure
*uses alpha receptors, where SNS sends NE/E to bind
capillaries main function: gas exchange
diffusion beds between arteries and veins for O2, nutrients, and wastes
capillaries are made out of: simple squamous epithelium
pulmonary capillaries drop off CO2 from tissues
pick up O2 for tissues
follows diffusion gradient
systemic capillaries pick up CO2 from tissues
drop off O2 for/at tissues
follows diffusion gradient
diffusion gradient high to low
gas exchange is the result of: diffusion
gas moves from high to low concentration
what does flow look like in capillaries? smooth flow for gas exchange
blood flow at slow range for gas exchange to adequately occur
what rate does blood flow in the capillaries? slower rate - dips down from much higher rate in the arteries
blood flow is faster in the: arteries and veins
*in contrast to the capillaries
diffusion through the capillaries is a: slow process
*blood flow highly decreases