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Exercise Quizzes
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1What is the function of the circulatory system?


2The circulatory system in humans is a closed system.
A)True
B)False


3Your heart beats approximately ________ times per day. A) 1,000 B) 10,000 C) 100,000 D) 1,000,000


4Name the four chambers of the heart.


5The right side of the heart pumps blood to the ________ and the left side of the heart pumps blood to the ________.


6The heart makes two sounds; the ________ sound is made by the closing of the atrioventricular valves, and the ________ sound is made by the closing of the semilunar valves (the valves that prevent backflow into the ventricles).


7What is a heart murmur?


8Blood is a type of connective tissue.
A)True
B)False


9________ are vessels that carry blood away from the heart, ________ are vessels that carry blood to the heart, and ________ are small vessels that connect arteries and veins.


10Red blood cells are called leukocytes.
A)True
B)False


11Name the four layers of blood vessels in order from inside to outside.


12Veins have a thicker wall and a larger lumen diameter than arteries.
A)True
B)False


13Define pulse.


14Name three places where you can take a pulse on a human body.


15Blood pressure involves two measurements: ________ pressure which is the increase pressure that results from blood leaving the heart, and ________ pressure when the heart relaxes.


16________ is defined as the difference between systolic and diastolic pressure.
A)Pulse pressure
B)Blood pressure
C)Hypertension
D)Blood murmur


17What instruments will you use today to measure blood pressure?


18What prevents blood in the venous system from flowing backwards?


19Define hypertension.


20List three factors that increase your risk of developing heart disease.





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