Body Systems

To breathe in

• exhale

• inhale

To breathe out

• exhale

• inhale

A muscle that helps your lungs breathe in and out

• nostrils

• respiratory

• lungs

• diaphragm

The tube or airway from your nose and mouth to your lungs

• nostrils

• windpipe

• inhale

• exhale

body system including the windpipe, lungs, and diaphragm

• respiratory

• circulatory

The heart has _ hollow chambers

• 1

• 2

• 3

• 4

The parts of your blood that carry oxygen are the __ blood cells

• red

• white

The parts of your blood that fight infection and disease are the __ blood cells

• red

• white

An organ designed to pump blood is the

(a)  

The blood vessels that take blood away from the heart are the

(a)