GMS 6402 Pulmonary Physiology Questions And Answers Well Illustrated.
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GMS 6402 Pulmonary Physiology
Institution
GMS 6402 Pulmonary Physiology
GMS 6402 Pulmonary Physiology Questions And Answers Well Illustrated.
Epiglottis - correct answer. Covers local cords and trachea during swallowing
Prevents movement of air into the lungs
Food and water to esophagus
Air to trachea
Lung Anatomy - correct answer. Right lung: ...
GMS 6402 Pulmonary Physiology
Questions And Answers Well Illustrated.
Epiglottis - correct answer. Covers local cords and trachea during swallowing
Prevents movement of air into the lungs
Food and water to esophagus
Air to trachea
Lung Anatomy - correct answer. Right lung: 3 lobes
Left lung: 2 lobes
Left has oblique fissure
Right has oblique fissure and Horizontal fissure
Cardiac notch is anatomical hallmark for position of left ventricle
All cardiac output travels to lung via the right ventricle
Conducting Airways - correct answer. Z0 to Z16 - no gas exchange here, about 150
mL of air held
Thick layers of cartilage and/or smooth muscle
How long do RBC stay in capillary network - correct answer. 0.75 seconds and
traverse about 3 alveoli
, Diffusion of CO2 and O2 - correct answer. CO2 fives times faster because of
increased solubility
Inspiration and Expiration - correct answer. Tidal Volume breathing is about .5 liters of
air per breath
Do work breathing in, breathing out is passive
Inspiration Muscles - correct answer. Diaphragm is main
Secondary are external intercostals (ribs) and sternocleidomastoids (elevate sternum)
*use secondary during exercise
Scalenus and parasternal intercartilaginous muscles (ribs)
Expiration Muscles - correct answer. Passive using recoil of lung to push air out
Secondary expiration muscles are internal intercostals and the abdominal muscle
(depress ribs)
These force air out as opposed to passive
Diaphragm - correct answer. Force generator for ventilation
Failure requires artificial respiration - accessory muscles are insufficient for ventilation
Contraction inspiration, relaxation expiration
Down then up
Tidal Volume - correct answer. Normal breathing volume
0.5 L
Expiratory Reserve Volume - correct answer. Volume expelled past normal tidal
volume
2L
Residual Volume (RV) - correct answer. Amount of air remaining in the lungs after a
forced exhalation
1.2 L
Forced Vital Capacity (FVC) - correct answer. Also just Vital Capacity (VC)
Forced exhalation after deepest inspiration
ERV + TV + IRV
5L
Decreases with pulmonary disease
Total Lung Capacity (TLC) - correct answer. Maximum volume expansion
RV + VC
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