The Human Body Review (Third Grade)

Question 1

This is another type of joint.

Accepted Answer

hinge

Question 2

How many hemispheres is the brain divided into?

Accepted Answer

two

Question 3

I am about as thick as your thumb. I relay messages between your brain and spinal cord.

Accepted Answer

Brain Stem

Question 4

I am the system that includes nerves, the brain, and the spinal cord. What am I?

Accepted Answer

the nervous system

Question 5

These are the messengers that transmit information from the body to the brain.

Accepted Answer

nerves

Question 6

When you quickly move your hand away from a hot item, this reaction is called a

Accepted Answer

reflex

Question 7

I am a part of the body's systems and have clearly defined functions, such as the stomach.

Accepted Answer

organs

Question 8

What do the muscles do?

Accepted Answer

Move our bones

Question 9

I am the largest part of your brain, controlling and managing language.

Accepted Answer

Cerebrum

Question 10

I am the system that helps to give your body structure, and I work to protect your organs.

Accepted Answer

Skeletal system

Question 11

I am a very strong muscle. I contract rhythmically without you having to control the beat.

Accepted Answer

the heart

Question 12

Doctors use me to see the skeletal system.

Accepted Answer

X-Ray

Question 13

I am the building block for all living things. What am I?

Accepted Answer

cell

Question 14

Which is NOT a part of the control center of the body?

Accepted Answer

eyeball

Question 15

This is a type of joint.

Accepted Answer

ball and socket

Question 16

I am a strong, elastic tissue. I can be found in places like the tip of your nose. What am I?

Accepted Answer

cartilage

Question 17

I am the area where two bones come together. What am I?

Accepted Answer

A joint

Question 18

What is the most powerful tendon in the body? (A legend has been told about it.)

Accepted Answer

Achilles heel

Questions 18