Name: ______

Respiratory System Study Guide

Label the diagram below:

Write the word that best describes the definitions below:

  1. The gas we breathe in. OXYGEN
  1. The little branches in our lungs. BRONCHIOLES
  1. Hairs that clean the air we breathe. CILIA
  1. The air sacs in our lungs. ALVEOLI
  1. The structure that enables us to speak/voice box.LARYNX
  1. The tube that connects the throat and bronchi.TRACHEA
  1. The two large organs that help us to breathe.LUNGS
  1. The muscle that controls the size of our chest cavity.

DIAPHRAGM

Match the word with the correct definition/function:

9. F Carbon DioxideA. What the diaphragm does

when you breathe in.

10. G LeftB. Allow oxygen to enter the

blood.

11. A ContractsC. Slick layer covering the lungs.

D. Controls the rate of breathing.

12. C PleuraE. Where the respiratory and

circulatory systems meet.

13. B CapillariesF. The waste product you breathe

out.

14. D Brain G. The side of the lung with two

lobes.

15. EAir sacs

Write the correct order of oxygen and carbon dioxide exchange:

Going in to the body:

1) Inhale

2) Nose traps germs in air

3) Air moves down the trachea

4) Air moves through the bronchi into the bronchioles

5) Alveoli receive oxygen to pass to blood

6) Oxygen passes into the blood

7) Oxygen-rich blood flows to the heart

8) Heart pumps oxygen-rich blood to the body

Coming out of the body:

9) Blood picks up carbon dioxide from the body

10) Heart pumps carbon dioxide rich blood to the lungs

11) Alveoli receives carbon dioxide from the blood

12) Carbon dioxide moves from bronchioles to bronchi

13) Carbon dioxide flows up the trachea

14) Carbon dioxide flows out the nose and mouth

15) Exhale

16. What is the definition of Bronchitis?

Inflammation of mucus membranes in the bronchial tubes.

17. What is the definition of Cystic Fibrosis?

Hereditary disease that causes the mucus membranes in the

body to produce too much mucus.

18. What is the cause of asthma?

Airborne substances, certain foods or common bacteria/viruses.

19. What is Pneumonia?

Inflammation of air sacs in the lungs.

20. How can Emphysema be prevented?

Avoid exposure to pollution and not smoking.

21. Which lung has 3 lobes and which lung has two lobes?

Right lung has three lobes and the left lung has two lobes.