Lecture 23

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Question 1 of 16

What is the purpose of respiration at the cellular level? = Metabolise food.

Question 1 of 16

Question 2 of 16

What is tidal volume? = Volume of one breath.

Question 2 of 16

Question 3 of 16

What are the two types of respiration? = Tidal and circular.

Question 3 of 16

Question 4 of 16

Which do mammals have? = Tidal.

Question 4 of 16

Question 5 of 16

What is functional residual capacity? = The residual air after a normal (relaxed) inspiration.

Question 5 of 16

Question 6 of 16

What is residual volume? = The residual air after maximal expiration.

Question 6 of 16

Question 7 of 16

What is total lung capacity? = The amount of air in the lungs after maximal inspiration – may exp + RV.

Question 7 of 16

Question 8 of 16

What is resting ventilation? (Approx) = 0.5L x 12 min-1 = 6 L min-`1.

Question 8 of 16

Question 9 of 16

What is exercise ventilation? = 3L x 40 min-1 = 120 L min-1.

Question 9 of 16

Question 10 of 16

What is rate of exchange of volume proportional to? = The difference in PBa & PA.

Question 10 of 16

Question 11 of 16

What is the intrapleural space? = The space between the visceral and parietal pleura.

Question 11 of 16

Question 12 of 16

What is its pressure? = Negative.

Question 12 of 16

Question 13 of 16

What is pneumothorax? = A hole in the thorax.

Question 13 of 16

Question 14 of 16

What is the result to the lung? = Does not fill as PA = PBa.

Question 14 of 16

Question 15 of 16

What is the result to the chest wall? = Increases vol (recoils out).

Question 15 of 16

Question 16 of 16

What does PB=0 mean? = Atmospheric pressure.

Question 16 of 16