Circulatory and Respiratory Systems

Front

Heart

Back

Pumps blood throughout the body

Front

Lungs

Back

Exchange oxygen and carbon dioxide

Front

Arteries

Back

Carry oxygen-rich blood away from the heart

Front

Veins

Back

Carry oxygen-poor blood back to the heart

Front

Capillaries

Back

Connect arteries and veins; site of gas exchange

Front

Trachea

Back

Windpipe; connects larynx to bronchi

Front

Bronchi

Back

Airways that lead from the trachea to the lungs

Front

Alveoli

Back

Tiny air sacs in the lungs for gas exchange

Front

Diaphragm

Back

Muscle that helps with breathing

Front

Red Blood Cells

Back

Carry oxygen using hemoglobin