LAB 8 ALT: JUST WHAT SHE WROTE ON BOARD Flashcards Preview

A&P II: BIO426 > LAB 8 ALT: JUST WHAT SHE WROTE ON BOARD > Flashcards

Flashcards in LAB 8 ALT: JUST WHAT SHE WROTE ON BOARD Deck (9)
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1

*** TV stands for... ***

Tidal Volume

2

*** ERV stands for... ***

Expiratory Reserve Volume

3

***  VC stands for... ***

Vital Capacity

4

*** Define TV ***

  • The amound of air that moves into or out of the lungs in quiet respiration 
  • about 500mL

5

*** Define ERV ***

The additional amount of air that can be exhaled after quiet expiration.

6

*** Define VC ***

The amount of air in the lungs that can be exhaled after a maximal forced inspiration.

7

*** What is the Formula for Vital Capacity and how is it measured? ***

 

  • VC = TV + IRV + ERV
  • Measurement is the difference between forced inhalation and forced exhalation

8

*** How is Expiratory Reserve Volume measured? ***

Measurement is the difference between quiet exhalation & forced exhalation.

9

*** What is the formula to figure out TV when spirometer that is not sensitve enough to take a direct TV reading?

How is this performed ***

  • (TV+ERV)-ERV=TV
  • Step 1: Take a quiet breath inhale, and at the peak of inhale, perform a forced exhale. Take reading for TV+ERV
  • Step 2: Take a quiet breath inhale and at the end of a quiet breathing exhale, perform a forced exhale. Take reading for ERV.
  • Subtract reading 2 from reading 1 for TV