Respiratory System

Question 1

Tidal Volume TV or VT

Answer 1

Normal lung volume of air that is displaced between inspiration and expiration when extra effort is not applied.

Usually 500ml per inspiration or 7ml/kg of body mass

Question 2

Inspiratory reserve volume

Answer 2

IRV- additional amount of air that can be inhaled after tidal volume (2000/300 in human beings)

Question 3

Expiratory reserve volume

Answer 3

Amount of extra air (above normal) exhaled during a forceful breath out.

1100ml and 800ml in females

Question 4

Total Lung Capacity

Answer 4

Maximum amount of air that can fill the lungs

TLC 6000ml
TCL= TV+IRV+ERV+RV)

Question 5

Residual volume

Answer 5

Amount that remains in the lungs added fully exhaled (can be used to test function)

Question 6

Functional residual capacity

Answer 6

FRC

Volume of air in the lungs after passive expiration

Question 7

Spirometry

Answer 7

Test for lung function

Measures how much aid you inhale and how quickly you exhale

Question 8

Partial Pressure

Answer 8

The amount of a specific gas amongst other gasses

21% 02

0.21x 760 mmHg= 160mmHg

During respiration = 100mmHG

Question 9

Minute Ventilation

Answer 9

The volume of gas inhaled or exhaled from a persons longs per minute.

A