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WorksheetsCirculatory and Respiratory
Total questions: 23
Worksheet time: 12mins
Name
Class
Date
1.
Choose the function that does NOT characterize the vertebrate circulatory system.
a)
elimination
b)
transportation
c)
protection
d)
regulation
2.
Which of these is NOT a characteristic of an open circulatory system?
a)
Blood is enclosed within blood vessels
b)
There is no distinction between blood and extracellular fluid
c)
Contains hemolymph
d)
There is no distinction between blood and extracellular fluid
3.
How do veins prevent the back-flow of blood within them?
a)
They possess flaplike valve
b)
They are capable of contracting
c)
Because of the tiny lumen inside them
d)
By having thick, muscular walls
4.
Exchange of nutrients and gases between tissue cells and the blood takes place through the walls of ___.
a)
capillaries
b)
arterioles
c)
veins
d)
venules
5.
___ are the blood cells that carry oxygen throughout the body.
a)
Erythrocytes
b)
Leukocytes
c)
Thrombocytes
d)
Platelets
6.
Blood plasma contains all of the following EXCEPT ___
a)
hemoglobin
b)
metabolites and wastes
c)
salts and ions
d)
proteins
7.
The average lifespan of a red blood cell is approximately ___.
a)
Four months
b)
15 days
c)
one month
d)
three months
8.
After blood flows through the right ventricle of the human heart, its next major destination is to ___.
a)
the lungs.
b)
the arms.
c)
the systemic system
d)
the left ventricle
9.
Which animal has countercurrent heat exchange to retain heat in a cold environment?
a)
Whale
b)
Birds
c)
Foxes
d)
Bony Fish
10.
Platelets are important in ___
a)
blood clotting
b)
All of the choices are correct.
c)
fighting infection.
d)
inflammation
11.
All vertebrates have a closed circulatory system.
a)
True
b)
False
12.
Which animal has an open circulatory system?
a)
insects
b)
crocodile
c)
earth worm
d)
planarian
13.
Put the terms in the correct order from the heart to the body and back to the heart
a)
arteries → arterioles → capillaries → venules → veins
b)
venules → arterioles → capillaries → veins → arteries
c)
veins → venules → capillaries → veins → arteries
d)
arteries → venules → veins → arterioles → capillaries
14.
When you are scared or cold and turn pale it is because the arterioles in your skin are ___.
a)
vasoconstricting
b)
expanding
c)
vasodialating
d)
exchanging carbon dioxide
15.
Which animal has a gastrovascular cavity?
a)
Flatworms, such as Planaria
b)
Mollusks, such as clams
c)
Animals, such as fish
d)
Insects, like the fly
16.
All these animals have a closed circulatory system EXCEPT ___.
a)
fly
b)
leeches
c)
camel
d)
lions
17.
Humans have a four-chambered heart with two separate pumping systems.
a)
True
b)
False
18.
Fibrinogen's main function is blood clotting.
a)
True
b)
False
19.
Mollusks and arthropods have closed circulatory systems.
a)
False
b)
True
20.
The atrioventricular node controls the heart beat
a)
False
b)
True
21.
Blood plasma is 90% water.
a)
True
b)
False
22.
Which valve in the human heart prevents oxygenated blood from going back into the left atrium?
a)
Bicuspid (mitral) valve
b)
Aortic semilunar valve
c)
Tricuspid valve
d)
Pulmonary semilunar valve
23.
White blood cells are also called erythrocytes
a)
False
b)
True
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