Cardiophysiology 10

Intrinsic

Intrinsic

Afterload is an (INTRINSIC/EXTRINSIC) regulator of CV function.

Intrinsic

Arterial resistance is an (INTRINSIC/EXTRINSIC) regulator of CV function.

Intrinsic

Contractility is an (INTRINSIC/EXTRINSIC) regulator of CV function.

Intrinsic

Preload is an (INTRINSIC/EXTRINSIC) regulator of CV function.

Intrinsic

EDV is an (INTRINSIC/EXTRINSIC) regulator of CV function.

Intrinsic

The strength of myocardial contraction is an (INTRINSIC/EXTRINSIC) regulator of CV function.

Intrinsic

Heart Rate is an (INTRINSIC/EXTRINSIC) regulator of CV function.

Extrinsic

Neural control is an (INTRINSIC/EXTRINSIC) regulator of CV function.

Extrinsic

Humoral control is an (INTRINSIC/EXTRINSIC) regulator of CV function.

Vasoconstrictor

Norepinephrine and Epinephrine are generally (VASOCONSTRICTOR/VASODILATOR).

Vasoconstrictor

Angiotensin II is generally a (VASOCONSTRICTOR/VASODILATOR).

Increase

Angiotensin II acts on many arterioles at the same time to (INCREASE/DECREASE) TPR.

Vasoconstrictor

Vasopressin (ADH) is a (VASOCONSTRICTOR/VASODILATOR).

Vasoconstrictor

ET1 is generally a (VASOCONSTRICTOR/VASODILATOR).

Vasoconstrictor

TXA2 is generally a (VASOCONSTRICTOR/VASODILATOR).

Vasodilator

Nitric oxide is generally a (VASOCONSTRICTOR/VASODILATOR).

Vasodilator

Histamine is generally a (VASOCONSTRICTOR/VASODILATOR).

Vasodilator

Bradykinin is generally a (VASOCONSTRICTOR/VASODILATOR).

Active Hyperemia

Increase in blood flow in response to an increase in metabolic rate.

Reactive hyperemia

Increase in blood flow in response to supply being blocked for a short period then unblocked.

Blood flow autoregulation

The intrinsic ability of an organ to maintain a constant blood flow despite changes in perfusion pressure.

False

True/False: Metabolic control of blood flow is dependent on ANS regulation

True

True/False: Metabolic control of blood flow is dependent on chemical changes within the tissue.

Vascular remodeling

Long term control of local blood flow is determined by angiogenesis, collateral circulation, and ________ ________.

Collateral circulation

Long term control of local blood flow is determined by angiogenesis, vascular remodeling, and __________ ________.

Angiogenesis

Long term control of local blood flow is determined by collateral circulation, vascular remodeling, and ____________