Lecture 45- Poll Questions for Respiratory System Flashcards
Which part of the respiratory system lined both the stratified squamous and ciliated pseudo-stratified columnar epithelium
Pharynx
Trachea
Bronchi
Larynx
Pharynx
The muscociliary clearance is accomplished by _____ epithelium lining the respiratory tract?
Simple squamous
Stratified squamous
Simple cuboidal
Ciliated pseudo-stratified columnar
Stratified squamous
Ciliated pseudo-stratified columnar
An infection in which of the following would indicate that the lower respiratory system has been affected?
Pharynx
Bronchi
Trachea
More than one answer is correct
More than one answer is correct
(Bronchi and trachea)
Which of the following can lead to forced expiration of air out of the lungs?
Contraction of abdominal muscles
Contraction of diaphragm
Contraction of intercostal muscles
All of the above
Contraction of abdominal muscles
According to ________ law, the amount of oxygen diffusing across the blood-air barrier would depend on the partial pressure of oxygen in the alveoli?
Henry’s
Dalton’s
Fick’s
Boyle’s
Fick’s
According to the law of Laplace, the pressure experienced by alveoli sacs to collapse is inversely proportional to _________?
Radius of the alveoli
Surface tension in the inner surface of the alveoli
Radius of the alveoli
Pressure=2*surface tension/radius
radius and pressure are inversely proportional
Which of the following statements is FALSE about 2,3-BPG?
-Causes a leftward shift of Hb-O2 binding curve
-2,3-BPG expression is increased by low temp
-2,3-BPG expression is decreased by low pH
-2,3 PBG is a byproduct of aerobic respiration
-All of the above
-None of the above
All of the above are false
-Right shift
-Expression increased by a high temp
-Expression decreased by a high pH
-Glycolysis
When hypocapnia is detected, the respiratory system will respond by increasing the rate of _______?
Diaphragm contraction
Diaphragm relaxation
Intercostal muscle relaxation
All of the above
None of the above
None of the above
Hypocapnia- low Co2 levels with hyper ventilation levels
Decrease respiratory rate
A leftwards shift in the Hb-O2 dissociation curve indicated the the O2 binds Hb with _______ affinity?
Greater
Lesser
No
Greater
Which of the following conditions affecting the binding between oxygen and hemoglobin would increase the affinity and make less oxygen available in the plasma?
decreased pH
increased temp
increased pCO2
all of the above
none of the above
None of the above
Needs to show a leftward shift
-Increased pH
-Decreased temp
-Decreased pCO2
The chloride shift will _________
-Aid in the transport of bicarbonate in the blood plasma
-Take place in the RBC in the lungs
-Ain in the transport of carbonic acid in the blood plasma
Aid in the transport of bicarbonate in the blood plasma
During expiration:
-Elastic recoil of the alveolar wall is decreased
-Intrapleural pressure is negative
-The intrapulmonary pressure is greater than atmospheric pressure
-The intrapulmonary pressure is the same as atmospheric pressure
The intrapulmonary pressure is greater than atmospheric pressure
_________ indicates that diffusion rate is proportional to the surface area for gas exchange?
Dalton’s
Boyle’s
Henry’s
Fick’s
Fick’s law
Which of the following is part of the conduction zone?
Nares/mouth
Pharynx
Larynx
Trachea
All of the above
All of the above
Dysfunction of which of the following will increase the alveolar surface tension?
Type 1 pnuemocytes
Type 2 pnuemocytes
Endothelial cells
Type 2 pnuemocytes
