WorksheetsLecture 3: Cardiovascular Overview
Total questions: 10
Worksheet time: 7mins
True or False: Arteries carry only oxygenated blood and veins carry only deoxygenated blood.
True
False
Select the layers of the heart (select all that apply).
Epicardium
Tunica Externa
Myocardium
Endocardium
The wall of the _______ ventricle is thicker than the wall of the ________ ventircle.
left, right
superior, inferior
inferior, superior
right, left
What does the sympathetic nerve fibers innervate on the heart?
SA node
AV node
cardiac muscle fibers
SA node and AV node
SA node and cardiac muscle fibers
True or False: Vascular smooth muscle cells contract by increasing [Ca2+] to stimulate Troponin.
True
False
Nitric oxide (NO) is the most potent vasodilator. What stimulates its production.
Norepinephrine
Epinephrine
Shear Stress
Bradykinin
What does EDHF stand for?
Epithelial-Derived Hyperpolarizing Factors
Endothelium-Derived Hyperpolarizing Factors
Endothelial-Derived Hemostatic Factors
Epicardium-Derived Hormone Factors
Endothelium-Derived Hyperpolarizing Factor
Nitric oxide elicits relaxation in the vascular smooth muscle cells by ______ activity of MLCP and ________ activity of MLCK.
decreasing, increasing
increasing, decreasing
maintaining, increasing
increasing, maintaining
Arachidonic acid is a precursor for the production of.... (select all that apply).
Nitric oxide
EDHF
ET-1
Prostacyclin
What is the Tunica Intima (innermost layer of arterial wall) composed of?
vascular smooth muscle cells
endothelial cells
endothelial cells and vascular smooth muscle cells
vascular smooth muscle cells and fibroblast cells
