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WorksheetsCirculation Ch 4
Total questions: 12
Worksheet time: 4mins
Name
Class
Date
1.
Cells that receive messages about the body's need for oxygen and send out signals to adjust heart rate
a)
atrium
b)
valve
c)
lymph node
d)
pacemaker
2.
At the site of a wound, platelets set off reactions that cause the production of this chemical
a)
lymph
b)
fibrin
c)
plasma
d)
hemoglobin
3.
Plasma is made up mostly of
a)
blood cells
b)
water
c)
proteins
d)
hemoglobin
4.
A disorder in which a person't blood pressure is consistently higher than normal
a)
hypertension
b)
atherosclerosis
c)
heart attack
d)
diffusion
5.
The largest artery in the body
a)
coronary artery
b)
atrium
c)
pacemaker
d)
aorta
6.
The network of vessels that returns fluid to the bloodstream
a)
lymphatic system
b)
veins
c)
arteries
d)
circulatory system
7.
Hemoglobin is a protein that binds easily to
a)
white blood cells
b)
oxygen
c)
fibrin
d)
platelets
8.
Which of the following structures pumps blood into arteries leading to the lungs?
a)
right atrium
b)
left atrium
c)
right ventricle
d)
left ventricle
9.
The lower two chambers of the heart
a)
Atria
b)
Kidneys
c)
Lungs
d)
Ventricles
10.
The tiny vessels where oxygen moves from the red blood cells into the body cells
a)
veins
b)
arteries
c)
capillaries
d)
diffusion
11.
Defend the body against disease
a)
Red blood cells
b)
Platelets
c)
Plasma
d)
White blood cells
12.
Control the direction of the flow of blood
a)
Veins
b)
Arteries
c)
Valves
d)
Capillaries
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