NAT6 U3 The respiratory system and breathing (p 24-25) | Baamboozle - Baamboozle

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Oxygen in the inhaled air passes into the _________ that surround the alveoli.

capillaries

In the systemic circuit, where does the blood travel?

between the heart and the other organs

What are microscopic sacs surrounded by capillaries that have blood constantly flowing through them?

Alveoli

In the pulmonary circuit, where does the blood travel?

between the heart and the lungs

What are capillaries?

very thin blood vessels that run to the organs to exchange substances between the blood and the cells

What do veins carry from the organs to the heart?

blood

What are the two circuits in the circulatory system?

pulmonary circuit and the systemic circuit

What system are the heart, capillaries, veins, and arteries a part of?

the circulatory system

What are bronchioles?

smaller branches of the bronchi

What system are the pharynx, larynx and trachea are part of?

The respiratory system

Oxygen, ______, and waste travel in the blood from one part to the another.

nutrients

What happens to the diaphragm during inhalation?

it contracts and the lungs expand

What happens to the diaphragm during exhalation?

it relaxes and the lungs contract

Arteries carry the blood from the heart to the ______.

organs

Where does air enter through the body?

through the nasal cavity or mouth

NAT6 U3 The respiratory system and breathing (p ...