Cardio- Integration of Cardiovascular Function: regulation of systemic arterial pressure Flashcards

1
Q

___ pressure is the same for all vascular beds; it is equal to MAP - VP.

A

Perfusion

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2
Q

What will the coronary vascular bed have to do, without changing MAP, if the heart muscle needs more blood flow?

A

If you want to increase flow without change in P then need to decrease R.

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3
Q

How will the coronary bed decrease its resistance?

A

relaxation of the smooth muscle cells in the blood vessel walls causes the diameter of these blood vessels to increase, thus decreasing the resistance.

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4
Q

MAP = ___ x ___

A

CO x TPR

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5
Q

What is the sum of the resistances to flow offered by all the systemic blood vessels?

A

total peripheral resistance (TPR)

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6
Q

What determines organ blood flow?

A

MAP

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7
Q

___ neurons function as sensors in the homeostatic maintenance of MAP by constantly monitoring pressure in the ___ ___ and ___ ___.

A

Baroreceptor; aortic arch; carotid sinuses

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8
Q

If the arterial pressure decreases, what happens to the discharge rate of the arterial baroreceptors?

A

it decreases also

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