Anirudh Mohanty - Resp-Circ Notes 2023

Function of respiratory system

To exchange 0xygen and Carbon Dioxide

To get oxygen in the bloodstream

Cell needs oxygen to carry out cellular respiration

How is it linked to Circulatory system

oxygen is breathed into lungs from the air.

Inside lungs oxygen dissolved into blood

Through capillaries… then into heart

Co2 from blood dissolves into lungs

Co2 is exhaled out of lungs

Pathway of air

1. Nose

2. Mouth

3. Pharynx

4. Larynx

5. Epiglottis

6. Trachea

7. Right and Left bronchi

8. Bronchioles

9. Alveoli

Alveoli

Air sacs at end of bronchioles

There are capillaries here to exchange 02 and co2

Lung diseases

Bronchitis= Bronchi get swollen and clogged with mucous

Emphysema= Loss of elasticity of lungs (cant get enough 02 or get rid of c02)

Asthma= inflammation of bronchi