Cardio- Integration of Cardiovascular Function: regulation of systemic arterial pressure Flashcards
___ pressure is the same for all vascular beds; it is equal to MAP - VP.
Perfusion
What will the coronary vascular bed have to do, without changing MAP, if the heart muscle needs more blood flow?
If you want to increase flow without change in P then need to decrease R.
How will the coronary bed decrease its resistance?
relaxation of the smooth muscle cells in the blood vessel walls causes the diameter of these blood vessels to increase, thus decreasing the resistance.
MAP = ___ x ___
CO x TPR
What is the sum of the resistances to flow offered by all the systemic blood vessels?
total peripheral resistance (TPR)
What determines organ blood flow?
MAP
___ neurons function as sensors in the homeostatic maintenance of MAP by constantly monitoring pressure in the ___ ___ and ___ ___.
Baroreceptor; aortic arch; carotid sinuses
If the arterial pressure decreases, what happens to the discharge rate of the arterial baroreceptors?
it decreases also