Body systems

Which system breaks down food?

• digestive

• circulatory

• respiratory

• immune

Answer explanation

The digestive system breaks down food.

The endocrine system is responsible for

• breathing

• hormones

• blood circulation

• nerves

Answer explanation

The endocrine system is responsible for hormones, including those that make babies.

The heart pumps blood through this system.

• respiratory

• endocrine

• immune

• circulatory

Answer explanation

The heart pumps blood through the circulatory system.

Which system senses pain and sends signals to the brain and spinal cord?

• immune

• excretory

• nervous

• circulatory

Answer explanation

The nervous system senses pain and sends signals to the brain and spinal cord.

Which system provides oxygen to the organs?

• digestive

• circulatory

• respiratory

• excretory

Answer explanation

The circulatory system provides oxygen to the body.

This system transports essentials and removes wastes to and from the cells of the body.

• circulatory
• respiratory
• skeletal
• integumentary

This system supplies the body with oxygen and rids it of carbon dioxide.

• circulatory
• respiratory
• muscular
• nervous

This system provides a framework for the body.

• muscular
• integumentary
• skeletal
• excretory

1. Which system are the lungs in?

• respiratory
• digestive
• excretory
• muscular

 What is the main job of the digestive system? 

• break down foods into nutrients that can be used by the body
• take in oxygen and exhale waste like carbon dioxide
• pump blood throughout the body
• makes the body hungry