1. 10-1 Notes – The Pulmonary System
Chapter 10, Lesson 1
PART 1 of 2

2. The Pulmonary System
Our pulmonary system contains tissues and organs specialized for:
Taking in oxygen and removing carbon dioxide from our bodies
Exchanging oxygen and carbon dioxide

3. Breathing
Breathing is the process of air entering and exiting our lungs.
A muscle called the diaphragm contracts and relaxes during inhalation and exhalation.

4. Breathing

5. Breathing

6. Breathing
The trachea (wind pipe) forks into two branches called bronchi.
The bronchi are connected to the lungs, which are the organs of the pulmonary system.

7. Breathing
The bronchi divide into bronchioles, which are further divided many times into alveoli.
Oxygen and carbon dioxide are exchanged in the alveoli.
The air that now is high in carbon dioxide is exhaled and flows out in the reverse path.

8. Breathing
Trachea → Bronchi → Bronchiole → Alveoli

9. Problems in the Pulmonary System
We cannot live without air.
Cells combine food and oxygen to produce energy.
Problems in the pulmonary system prevent oxygen from reaching the lungs.

10. Pneumonia
Caused by contact with mucus from an infected person or the introduction of bacteria or viruses from the mouth and throat into the lungs.
One of the leading causes of death in the U.S.

11. Suffocation
Suffocation occurs when the lungs and body do not receive enough oxygen.
Causes of suffocation:
Choking
Children with blankets or plastic bags covering their faces
Gases such as carbon monoxide (CO). C O

12. Asthma A disease of the airways to the lungs
Most common long-term disease in children
Triggers include air pollution, smog, and ozone
Normal bronchiole
Constricted bronchiole

13. What two branches does the trachea fork into? A lungs B brachia
10.1 The Pulmonary-Circulatory System
What two branches does the trachea fork into?
A lungs
B brachia
C bronchi
D bronchioles

14. What is the term for the muscle below your rib cage which contracts and relaxes as you breathe?
A pharynx
B larynx
C trachea
D diaphragm

15. SCI 5.b
What disease is characterized by the build up of thick fluid in the lungs?
A pneumonia
B heart attack
C stroke
D asthma

16. 10-1 Vocab – The Pulmonary-Circulatory System text p. 392-403
respiration
pulmonary system
breathing
lungs
pneumonia
suffocation
asthma
circulatory system
atrium
ventricle
artery
capillary
vein
heart attack
stroke
heart