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16 Questions

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Cardiovascular I

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Questions and Answers

Which of the following is NOT a function of the cardiovascular system?

Transport waste to excretion sites

Transport oxygen to tissues

Produce hormones (correct)

Transport nutrients from intestine to tissues

The heart has three chambers: two atria and one ventricle.

False

What type of tissue makes up the heart wall?

Myocardium

The __________ separates the heart into two parts, preventing the mixing of oxygenated and un-oxygenated blood.

septum Signup and view all the answers

Match the heart valves with their locations:

Tricuspid = Right atrium to right ventricle Bicuspid (Mitral) = Left atrium to left ventricle Aortic = Left ventricle to aorta Pulmonary = Right ventricle to pulmonary artery Signup and view all the answers

What is the main role of the atria?

Receive blood from veins Signup and view all the answers

The pericardium contains a cavity filled with air to allow heart movement.

False Signup and view all the answers

The AV valve on the left side of the heart is called the __________.

bicuspid Signup and view all the answers

What happens to the AV valves when the ventricles are relaxed?

They open Signup and view all the answers

The aorta carries deoxygenated blood from the heart to the lungs.

False Signup and view all the answers

What is the phase of the cardiac cycle called when the heart muscles are relaxed?

diastole Signup and view all the answers

The ________ carries deoxygenated blood from the right ventricle to the lungs.

pulmonary arteries Signup and view all the answers

Match the following components of the cardiac cycle with their definitions:

Systole = Phase of contraction of the heart Diastole = Phase of relaxation and filling of the heart Cardiac output = Blood pumped by each half of the heart per minute Pressure in ventricles = Determines whether valves are open or closed Signup and view all the answers