Human anatomy

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 __________ is the main organ of the nervous system.

• heart
• lungs
• brain
• skin

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

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

• Memories
• Blood
• Waste
• Messages

My heart is a _________, that pumps blood through the body. 

• Cell
• Tissue
• Muscle
• Bone

Arteries carry blood ______ from the heart.

• Away
• To
• Across
• Around

The air I breathe in goes down my trachea to my ______?

• Heart
• Lungs
• Brain
• Stomach

I breathe out s gas called ___________ that my body does not need. 

• Oxygen
• Carbon Monoxide
• Carbon Dioxide
• Hydrogen Peroxide

The food I eat goes down my esophagus to my __________.

• Bladder
• Kidney
• Stomach
• Big Toe