Body Systems

The main purpose of the ____________ system is to break food particles into pieces that can be used.

• circulatory
• respiratory
• digestive
• skeletal

What is responsible for delivering oxygen and removing carbon dioxide from the body?

• cell nucleus
• excretory system
• nervous tissue
• respiratory system

The __________ system directs the body to inner and outer changes.

• digestive
• circulatory
• nervous
• skeletal

The __________ is the main organ of the nervous system.

• heart
• lungs
• brain
• skin

When tissues come together, they form ___________.

• cells
• atoms
• organs
• systems

Which of the following body systems work together for support, protection, and movement?

• respiratory and cardiovascular
• skeletal and muscular
• skeletal and integumentary
• digestive and respiratory

What body system removes the waste from your body? 

• Circulatory
• Excretory
• Digestive
• Respiratory

My spinal cord helps _________ travel between my brain and the nerves in my body. 

• Memories
• Blood
• Waste
• Messages

The main purpose of the ________ system is to produce hormones for the body.

• excretory
• digestive
• reproductive
• endocrine