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cardiovascular system A&P review

Terms in this set (172)

what is the heart's job?
to pump blood throughout the circulatory system
cardiac muscle is similar to _________ _________, with addition of _______________ _______.
skeletal muscle; intercalated disks
atria and ventricles must be coordinated and healthy to achieve ideal _______ _____ and _____________.
blood flow; circulation
pulmonary circulation
smaller volume, low pressure
systemic circulation
larger volume, high pressure
arteries
have thicker middle smooth muscle layer called the vascular smooth muscle
the arterial system is described as a ______-_________ system.
high-pressure
the venous system is described as a _____-____________ system.
low-pressure
the venous system is often described as the _____________ or storage site of the systemic circulation.
capacitance
arterioles will independently constrict or dilate via _____________ in smooth muscle layer.
changes
blood is pushed through veins by one-way valves that are _________ by the muscle.
pumped
_________ has a lot of effect on how much blood volume is in the venous system.
gravity
how are veins able to serve as capacitance vessels?
veins are very distensible, so if there's more blood hanging out there, the veins can expand to accommodate it
__________ circulation is usually considered brain, heart, abdominal organs; ____________ circulation is everything else, especially the limbs.
central; peripheral
blood can shift between the central and peripheral circulation depending on where the ____________ needs are.
metabolic
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