Cardiovascular System — Flashcards

Flashcard 81: A(n) _____ in TPR causes a clockwise rotation of the vascular function curve

Answer: increase

Extra: An increase in Total Peripheral Resistance (TPR) increases the resistance to venous return, decreasing the slope of the vascular function (venous return) curve. This results in a clockwise rotation around the X-intercept (Mean Systemic Filling Pressure). Conversely, a decrease in TPR causes a counterclockwise rotation.

Flashcard 82: _____ is released from ventricular myocytes in response to increased tension

Answer: B-type (brain) natriuretic peptide (BNP)

Flashcard 83: Depolarization proceeds from the _____cardium to the epicardium in an intact cardiac muscle.

Answer: endo

Flashcard 84: Bradykinin causes vaso-_____ and increased vascular permeability

Answer: dilation

Flashcard 85: A(n) _____ in TPR causes a(n) downward shift of the cardiac function curve

Answer: increase

Flashcard 86: Increased _____ results in a(n) decreased width and increased height on a pressure-volume loop curve

Answer: afterload

Flashcard 87: _____ rhinitis occurs due to parasympathetic overactivity which causes vasodilatation and congestion.

Answer: Vasomotor

Flashcard 88: The second phase of Lewis' triple response is _____ which occurs due to arteriolar dilatation, secondary to axon reflex

Answer: flare

Flashcard 89: Activation of A1 receptors in the myocardium by adenosine _____ outward K+ current

Answer: increases

Flashcard 90: Increased _____ results in an increased width and increased height on a pressure-volume loop curve

Answer: contractility