WorksheetsCirculatory System
Total questions: 16
Worksheet time: 8mins
Name
Class
Date
1.
What is the main organ of the circulatory system?
a)
small intestine
b)
bone
c)
lungs
d)
heart
2.
Arteries carry oxygen rich blood away from the heart.
a)
True
b)
False
3.
Veins carry oxygen poor blood back to the heart.
a)
False
b)
True
4.
The job of the heart is to . . .
a)
pump blood around the body.
b)
send food to the small intestines.
c)
break down food.
d)
give energy to the body.
5.
The heart is about the size and shape of your . . .
a)
head
b)
fist
c)
hand
d)
foot
6.
______________ are the smallest blood vessels.
a)
Arteries
b)
Veins
c)
Capillaries
7.
The circulatory system works with the ___________ system to provide our body with oxygen.
a)
respiratory
b)
digestive
c)
muscular
d)
skeletal
8.
The circulatory system works with the __________ system to obtain energy from nutrients that we eat.
a)
respiratory
b)
digestive
c)
skeletal
d)
nervous
9.
The main function of the circulatory system is
a)
To give the body structure and support
b)
Excrete hormones
c)
transport blood, nutrients, and gases throughout the body
d)
to transport messages from the body to the brain
10.
White blood cells
a)
allow for gases to exchange
b)
give blood its color
c)
fight infection and disease
d)
help clot blood
11.
What is the function of platelets?
a)
Platelets aid in digestion and nutrient absorption.
b)
Platelets help in blood clotting and prevent excessive bleeding.
c)
Platelets help in transporting oxygen in the blood.
d)
Platelets regulate body temperature and maintain homeostasis.
12.
What level of organization is blood?
a)
tissue
b)
organ
c)
cell
d)
organ system
13.
What is blood pressure?
a)
Blood pressure is the force of blood against the walls of the arteries as the heart pumps it around the body.
b)
Blood pressure is the temperature of the blood.
c)
Blood pressure is the speed at which blood flows through the veins.
d)
Blood pressure is the amount of blood in the body.
14.
What occurs at the capillaries and alveoli?
a)
Blood clotting
b)
Oxygen production
c)
Gas exchange
d)
Muscle contraction
15.
What are capillaries?
a)
Capillaries are large blood vessels that carry oxygenated blood.
b)
Capillaries are found only in the lungs.
c)
Capillaries are tiny blood vessels that connect arteries and veins.
d)
Capillaries are responsible for pumping blood to the body's organs and tissues.
16.
What kind of muscle is found in the heart?
a)
cardiac muscle
b)
voluntary muscle
c)
smooth muscle
d)
skeletal muscle
100 %
