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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 .


6The left side of the heart pumps blood to the .


7The heart makes two sounds; the ________ sound is made by the closing of the tricuspid/mitral valves (the valves between the atria and ventricles) and the ________ sound is made by the closing of the aortic and pulmonary valves (the valves that prevent backflow into the ventricles).


8What is a heart murmur?


9Blood is a type of connective tissue.
A)True
B)False


10


veins
11


erythrocytes
12


capillaries
13


plasma
14


arteries
15


leukocytes
Answer choices:
A)white blood cells
B)vessels that carry blood to the heart
C)small vessels that connect arteries and veins
D)vessels that carry blood away from the heart
E)red blood cells
F)clear, yellowish fluid portion of blood


16Name the four layers of blood vessels in order from inside to outside.


17Veins have a thicker layer of smooth muscle than arteries.
A)True
B)False


18Define pulse.


19Name three places where you can take a pulse on a human body.


20Blood pressure involves two measurements: pressure which is the increase pressure that results from blood leaving the heart and pressure when the heart relaxes.


21________ is defined as the difference between systolic and diastolic pressure.
A)Pulse pressure
B)Blood pressure
C)Hypertension
D)Blood murmur


22What instruments will you use today to measure blood pressure?


23What prevents blood in the venous system from flowing backwards?


24Define hypertension.





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