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Human Body Systems Assessment for 6th Grade

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

What is the main function of the nervous system?

a)

Pumping blood throughout the body

b)

Controlling body movements and thoughts

c)

Breaking down food for energy

d)

Supporting body structure

2.

Which two main parts make up the nervous system?

a)

Brain and spinal cord

b)

Heart and blood vessels

c)

Lungs and airways

d)

Bones and joints

3.

What is the main function of the muscular system?

a)

Filtering blood

b)

Protecting internal organs

c)

Movement and maintaining posture

d)

Producing hormones

4.

Which two main components make up the muscular system?

a)

Tendons and ligaments

b)

Skeletal muscles and smooth muscles

c)

Blood vessels and capillaries

d)

Nerves and tissues

5.

What is the primary function of the respiratory system?

a)

Digesting food

b)

Pumping blood

c)

Exchanging oxygen and carbon dioxide

d)

Supporting movement

6.

What are two main parts of the respiratory system?

a)

Lungs and airways

b)

Heart and veins

c)

Stomach and intestines

d)

Brain and nerves

7.

What is the main function of the skeletal system?

a)

Processing nutrients

b)

Carrying messages

c)

Supporting and protecting the body

d)

Producing hormones

8.

Which two main components make up the skeletal system?

a)

Muscles and tendons

b)

Bones and joints

c)

Blood and plasma

d)

Nerves and tissues

9.

What is the primary function of the digestive system?

a)

Breaking down food and absorbing nutrients

b)

Pumping blood through the body

c)

Supporting body movement

d)

Protecting internal organs

10.

What are the two main parts of the digestive system?

a)

Heart and lungs

b)

Brain and spinal cord

c)

Stomach and intestines

d)

Bones and muscles

11.

What is the main function of the circulatory system?

a)

Supporting body structure

b)

Processing food

c)

Controlling thoughts

d)

Transporting blood throughout the body

12.

Which two main parts make up the circulatory system?

a)

Heart and blood vessels

b)

Lungs and diaphragm

c)

Bones and joints

d)

Stomach and intestines

13.

It takes 43 muscles to frown, but only ____ to smile.

a)

25

b)

17

c)

21

d)

30

14.

Which system contains the strongest muscle in proportion to its size?

a)

Nervous system

b)

Digestive system

c)

Muscular system

d)

Respiratory system

15.

Which system processes approximately 20,000 breaths per day?

a)

Circulatory system

b)

Respiratory system

c)

Digestive system

d)

Skeletal system

16.

Babies are born with about 300 bones, but adults only have 206 - some bones _____ together as you grow.

a)

grow

b)

dissolve

c)

break

d)

melt

17.

How long can the digestive system be if stretched from end to end?

a)

10 feet

b)

22 feet

c)

25 feet

d)

33 feet

18.

How many miles of blood vessels are in the circulatory system?

a)

About 60,000 miles

b)

About 70,000 miles

c)

About 80,000 miles

d)

About 90,000 miles

19.

Messages in your nervous system travel up to _______ miles per hour - faster than a race car!

a)

100

b)

150

c)

250

d)

350

20.

Which system allows you to think, feel emotions, and control body movements?

a)

Skeletal system

b)

Nervous system

c)

Circulatory system

d)

Respiratory system