1. Chapter 37 Circulatory and Respiratory Systems

2. The Circulatory System

- The main source of the circulatory system is the heart.

3. Function of the Circulatory System

The heart pumps blood to the lungs and the rest of the body.

4. Blood Vessels

Blood is being transferred through 3 types of vessels:

- Arteries

- Capillaries

- Veins

5. Blood Pressure

- Wave of fluid pressure in the arteries

Sphygmomanometer is a machine to measure blood pressure.

Normal blood pressure 120/80

6. Disorders

Some disorders in the circulatory system are:

- High Blood Pressure

- Heart Attack

- Stroke

- Sickle cell anemia

7. The Organs of the Respiratory System

The 6 main organs of the Respiratory System are:

- Nose

- Pharynx

- Larynx

- Trachea

- Bronchi

- Lungs

8. Gas Exchange

Carbon dioxide is being exchanged with oxygen.

9. Breathing

When you breathe in (inhale) the diaphragm contracts.

When you breathe out(exhale) the diaphragm relaxes.

10. How is breathing controlled?

It is controlled by the brain.

Also, its controlled by the level of carbon dioxide in the blood.

11. Smoking

The 3 main substance in tobacco are:

- Nicotine

- Carbon Monoxide

- Tar

There are 3 diseases you can get from smoking:

- Chronic bronchitis

- Emphysema

- Lung Cancer