Cardiovascular quiz

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Last updated: May 28, 2024

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Prompt	Answer
"begins in the heart"	Myogenic contraction
blood plasma contains: _____; proteins; and dissolved salts, sugars, fats, hormones	water
the exterior layer of the artery is the tunica _____, and it provides structure to the vessel	externa
an occlusion in the above vessel can cause a	myocardial infarction
at the _____ end of the capillary, interstitial fluid flows into the capillary	venous
the interior layer of the artery is the tunica _____, and it responds to oscillations in blood flow to maintain pressure	intima
_____ can increase the risk of a heart attack	smoking, sedentary lifestyle, diet, alcoholism, obesity, lack of sleep
the middle layer of the artery is the tunica _____, and it is comprised of smooth muscle	media
_______ muscles facilitate venous bloodflow	skeletal
node that delays signal to ventricles	atrioventricular node
where is epinephrine made?	adrenal glands
baroreceptors detect:	stretch
chemoreceptors detect:	pH, CO2 levels, O2 levels
period of contraction	systole
interstitial fluid diffuses in and out of the tissue due to ______ gradients between the tissue and the vessels	pressure
located in the right atrium, initiates heart contraction	Sinoatrial node
the vagus nerve can _____ heart rate	decrease
veins transport blood _____ the heart	towards
capillaries have _____ to increase gaseous exchange	large lumen, branching, walls one cell thick

Prompt	Answer
the series of events that take place over the course of a single heartbeat	cardiac cycle
types of muscle cells with intercalated discs	cardiac muscle
the ____ is the opening of a blood vessel	lumen
during diastole, the aortic valve is ____	closed
systolic blood pressure is ______ than diastolic blood pressure	higher
tachycardia is a _____ than normal heart rate	faster
vessels that take blood away from the heart are	arteries
vessels that supply the heart with oxygen	coronary arteries
what prevents backflow in veins	valves
nerves located between the ventricles	bundle of His
the strings attached to the atrioventricular valves	chordae tendinae
_____ is interstitial fluid: fluid found in the space between cells	lymph
distribute electricity throughout the ventricles	purkinje fibers
the sympathetic nerve can _______ heart rate	increase
______ are used in some capillaries as windows to increase gas exchange	fenestrations
the ______ _______ in the brain regulates heart rate	medulla oblongata
takes blood from lower body to heart	inferior vena cava
the muscle and elasticity in arteries helps to maintain	blood pressure
blood plasma has a higher concentration of _____ than interstitial fluid.	protein