The heart's natural pacemaker, where the electrical impulses begin, is called the:
A) Purkinje fibers
B) Atrioventricular (AV) node
C) Sinoatrial (SA) node
D) Bundle of His
Correct Answer:
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Q215: Smaller bunches of arteries are called:
A) arterioles
B)
Q216: What is the outer layer of the
Q217: Select the structure that filters blood and
Q218: The aortic valve:
A) opens to allow blood
Q219: What is a collection of excess fluid
Q221: All of the following are primary functions
Q222: Veins that are located close to the
Q223: This contains nutrients, fats, electrolytes, and cellular
Q224: What is deep vein thrombosis?
A) raised, painful
Q225: All of the following are components of
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