Gas Exchange, Thermoregulation

Question 1

Inhaled air moves through..

Answer 1

1. mouth/nose to
2. pharynx
   3.Larynx
3. Trachea
4. R & L main bronchi
5. Bronchioles
6. Alveoli

Question 2

What is gas exchange?

Answer 2

the loading of oxygen into pulmonary blood and the removal of carbon dioxide

Question 3

At the Alveoli, gas…

Answer 3

-gasses diffuse down their partial pressure gradients crossed respiratory membrane (a shared membrane between the capillaries and alveoli)
-oxygen diffuses into the blood where it’s delivered to tissues
-CO2 diffuses out of blood as waste of cellular respiration

Question 4

What is thermoregulation?

Answer 4

regulation of body temperature

Question 5

How does the respiratory system do thermoregulation?

Answer 5

-capillaries in respiratory tract constricts to conserve heat + dilate to release heat
-exhalation of warm air cools body