Human Anatomy

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

Arteries carry blood ______ from the heart.

• Away
• To
• Across
• Around

Which of the body systems is responsible for exchanging oxygen and carbon dioxide?

• nervous

• disgestive

• respiratory

• cardiovascular

What are organs made up of?

• tissues

• cells

• organ systems

• organism

An organ system is a collection of:

• cells that perform the same function

• tissues that perform the same function

• organisms that work together

• organs that work together

Your __________ is the central organ in your cardiovascular system.

• brain

• heart

• spine

• lung

A job of the skeletal system is to produce or make:

• red blood cells

• calcium

• vitamin D

• fat

If you were to burn your hand on a stove, which body system would first react to that event?

• Your muscular system – to move your hand away.

• Your respiratory system – to let out a yell.

• Your cardiovascular system – to make your heart race.

• Your nervous system – to sense the pain.