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Worksheets6th 12.2 Circulation
Total questions: 10
Worksheet time: 8mins
Name
Class
Date
1.
The ______ is a hollow, muscular organ that pumps blood throughout the body
a)
aorta
b)
heart
c)
blood vessels
d)
lungs
2.
___________ help form blood clots when a blood vessel is cut.
a)
White Blood Cells
b)
Red Blood Cells
c)
Platlets
d)
Scabs
3.
Red and white blood cells are both produced in ______________.
a)
Bone Marrow
b)
platelets
c)
heart
d)
aorta
4.
What is the largest artery in the body?
a)
Heart
b)
Aorta
c)
Skin
d)
Lungs
5.
Blood contains __________ that fight disease.
a)
Platelets
b)
Red Blood Cells
c)
White Blood Cells
d)
Marrow
6.
Most materials, including glucose, fats, vitamins, minerals, and chemical messengers travel in the __________.
a)
Blood Vessels
b)
White Blood Cells
c)
Red Blood Cells
d)
Plasma
7.
In the first loop of blood circulation, blood travels from the heart to the ________ and then back to the heart.
a)
Aorta
b)
Lungs
c)
Entire Body
d)
Cells
8.
The lower chambers, called ___________, pump blood out of the heart.
a)
Aorta
b)
Atrium
c)
Ventricles
d)
Heart
9.
From the arteries, blood flows into tiny vessels called ______________.
a)
Blood Vessels
b)
Heart
c)
Lungs
d)
Capillaries
10.
The hemoglobin in red blood cells releases ___________ as blood travels through the capillaries.
a)
Waste
b)
Carbon Dioxide
c)
Oxygen
d)
Platelets
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