34. Respiratory System

Question 1

what are the three parts of the respriatory system?

Answer 1

1. external respiration
2. internal respiration
3. cellualar respiration

Question 2

what is external respiration?

Answer 2

exchange of gases between air and blood (ventilation)

Question 3

what is internal respiratoin

Answer 3

gas exchange between blood and tissues

Question 4

wha tis cellular respiratoin

Answer 4

oxidation of substrates at the celluar level to create energy

Question 5

what is pulmonary ventilation?

Answer 5

air movement in and out of the lungs

Question 6

what is pulmonary diffusion?

Answer 6

oxygen moves from lungs to blood, carbon dioxide moves from blood to lungs

Question 7

what is gas exchange transport?

Answer 7

transport of oxygen via blood to tissues

transport of carbon dioxide via the blood to lungs

Question 8

what is capillary gas exchange

Answer 8

oxygen moves from the blood to tissue and carbone dioxide moves from tissue to the blood

Question 9

what is partial pressure

Answer 9

in a mixture where there a multiple types of molecules (gas) each type of gas contributes partially to the total gas pressure

partial pressure is the pressure of each gas in a gas mixture

Question 10

what is frequency (f)

Answer 10

the number of breaths per minute (av is 12-16)

Question 11

what is tidal volume?

Answer 11

volume of air moved per breath

(av is 0.5L)

Question 12

what is minute ventilation?

Answer 12

volume of air moved each minute

calculated as tidal volume x frequency