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Name ________________________________________________ Period _________
U6, RA4 Circulatory System
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Name _________________________________________________Period ______ Group _____
U6, RA4 Circulatory System
DIRECTIONS: Answer the question or list the words that complete the statement. 1) Write
the number in front of your answer. 2) If the question does not have blank spaces (__),
your answer is to be written in complete sentence form, otherwise just list the words (in the
correct order) that belong in the blank spaces.
RR1: a) fill in page summaries at the bottom of
each page and b) mark and number the location in
the reading where you found your answers; ! 6pts.
1) In your body, a __ system distributes
materials. Cardio- means __ and vascular
means __.
2) What does your cardiovascular system
consist of?
3) What is diffusion? (Movement of materials
in and out of your cells happens by diffusion.)
4) The human heart has four cavities called
chambers. The two upper chambers are the __
__ __ __. The two lower cambers are the __
__ __ __.
5) When a heart beats, which chambers
contract first and which chambers contract
second?
6) Which veins are the only ones that carry
oxygen rich blood? (Veins by definition carry
blood to the heart.) (See figure 23-2 part C)
7) The __ is the __ __ of your body and carries
blood away from your heart. __ __ moves
oxygen-rich blood to all of your __ and __ __
except for the heart and lungs.
8) What is coronary circulation? (If this
circulation is blocked, the result is a __ __.)
9) What are arteries?
10) What are veins?
11) Capillaries are microscopic blood vessels
that __ __ __ __. The walls of capillaries are
only __ __ __. Nutrients and oxygen __ __ __
__ through thin capillary walls. Waste
materials and carbon dioxide move from body
cells into the capillaries to be __ __ __ __ __.
SEE PART 2 on the next page (8pts!) !
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To the brain
To the lungs
To the lungs
From the lungs
From the lungs
Left Atrium
Right Atrium
Left Ventricle
Right Ventricle
To the body
Redraw and label the heart. Label the following parts: Right Atrium, Left Atrium, Right
Ventricle, Left Ventricle, To the lungs (x2), From the lungs (x2), To the brain, To the body.
Also, show the direction of blood flow in the heart using arrows.
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