Presure and Flow in Arteries and Veins Flashcards
does pressure fall or rise throughout the vascular tree
pressure falls
is pulmonary circulation pressure higher or lower than systemic circulation pressure
lower
if velocity is related to total cross section, in what vessel(s) is it the fastest
aorta
vena cava
what vessel has the highest TOTAL cross sectional area
capillaries
elastic arteries can be said to act as pressure whats?
elastic arteries can be said to act as pressure reservoirs
what value is defined as normal arterial pressure
120/80
what is pulse pressure
pulse pressure is systolic pressure minus diastolic pressure
pressure will drop throughout the vascular tree, what is the pressure in arteries
95-90mmHg
what is the pressure in arterioles
90-40mmHg
what is the pressure in veins
20-5 mmHg
through which vessel(s) does blood have the highest velocity
Aorta and vena cava
through which vessels does blood have the lowest velocity
capillaries
what effects pressure and flow in veins
gravity
skeletal muscle pump
respiratory pump
systemic filling pressure
how can you measure atrial pressure
Korotkoff sounds
how can you measure central venous pressure
jugular collapse
