1) What is the job of the Circulatory System? a) To help us breathe b) To circulate blood 2) What are 2 parts of the Circulatory System? a) Bones and nerves b) Heart and blood vessels 3) What does blood travel through? a) Blood vessels b) Lungs 4) What is the job of the Respiratory System? a) To help us breathe b) To circulate blood 5) Where does air enter your body? a) Lungs b) Mouth and nose 6) Where does the air go after your mouth and nose? a) Lungs b) Trachea (throat)  7) What organs put oxygen into the blood & take carbon dioxide out? a) Lungs b) Mouth and nose 8) How can we keep our Respiratory System healthy? a) Stay away from smoke b) Eating

Circulatory & Respiratory System 2 - 3

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