U5L1

I control your muscles and all of the organs in your body. I make sure you breathe automatically, ensure your heart beats properly, and remind you to blink your eyes. I even hold all of your thoughts and memories.

What am I?

• liver

• lungs

• heart

• brain

I am sometimes called your “windpipe.” When you breathe, air travels through me to your lungs. What am I?

• lungs

• brain

• trachea

• arteries

I hold your body parts in. I have pores so sweat can escape your body. I am filled with nerves that help you to sense temperature and feel the things around you. What am I?

• lungs

• small intestine

• esophagus

• skin

Tags

NGSS.MS-LS1-8

Which two body systems work together to support the body and allow the body to move?

• circulatory and respiratory

• digestive and nervous

• skeletal and muscular

• circulatory and digestive

This system is the body's defense against attack.

• endocrine

• excretory

• muscular

• immune

From the smallest functional units to the largest, the body is organized as follows: 

• cell, system, organ, tissue, body. 

• organ, cell, tissue, system, body. 

• system, organ, tissue, cell, body. 

• cell, tissue, organ, system, body. 

Tags

NGSS.MS-LS1-3

A woman running in a marathon requires a constant supply of oxygen to her muscles.Which cells carry oxygen to muscle tissue?

• nerve cells

• lung cells

• red blood cells

• artery cells

The three types of muscles are 

• skeletal, smooth, and cardiac. 

• skeletal, voluntary, and cardiac. 

• smooth, cardiac, and involuntary. 

• skeletal, cardiac, and ridged. 

This system secretes chemical messages (hormones) to different parts of the body.

• excretory

• endocrine

• digestive

• immune

This system filters and removes liquid wastes from the body.

• endocrine

• digestive

• circulatory

• excretory