BIO 135 Final Exam 2022 Questions and
Answers
At what point does the trachea branch into two mainstem bronchi? - ANSWER Carina
What maintains the negativity of interpleural pressure? - ANSWER Lymphatic drainage
and Action of the diaphram
Which of the following is the is the right sequence of events that generate a cough? -
ANSWER The diaphragm contracts for inspriation, inspiratory pause, the larynx closes
the glottis, the abdominal expiratory muscles contract forcefully, and the glottis opens as
gas releases.
What is the name of the most superior part of the sternum? - ANSWER Sternal notch
L/S ratio and PG levels lung maturity in neonates? - ANSWER True
Which of the following structures is responsible for phonation? - ANSWER True vocal
cords
The gas exchange zone consist of what? - ANSWER Aveoli, acini, and respriatory
broncholi
Which of the following are explanation for the left hemidiaphragmatic surface to be
slightly lower than the right? - ANSWER The heart rest on the left half and the liver is
below the right half
Upper airways resist is less than lower airways resistance? - ANSWER False
Stimulation of the irritant receptors in the lung can result in which defense mechanism?
- ANSWER Bronchoconstriction, Reflex closure of glottis, and bradycardia
Pharyngeal tonsils are called - ANSWER Adenoids
Which of the following of the nose is lost if a plastic endotracheal tube is insterted
through the nose or mouth and into the trachea? - ANSWER Air conditioning
Which of the following occurs during inspiration? - ANSWER Diaphragm contracts and
flattens
Of the following, the structures essential in generating high pressure during a cough is
the - ANSWER Vocal cords
Which of the following is a function of the surfactant? - ANSWER Lowers surface
tension
True vocal cords folds a triangular opening leading into the trachea? - ANSWER True
, BIO 135 Final Exam 2022 Questions and
Answers
What is the normal composition of the surfactant? - ANSWER 90% phospholipids and
10% protein
Because of the dichotomous branching bronchial tubes become narrower, this means
the airflow has to squeeze through a smaller diameter and therefore speeds up as it
approaches the aveoli? - ANSWER False
Which of the following pathologic processes is defined as perfusion in excess of
ventilation, ie atelectasis? - ANSWER Shunt
What is the narrowest portion of the airway in the adult larynx? - ANSWER Glottis
All of the follwoing are parts of the sternum except the - ANSWER Carina
Which of the following are considered the primary respiratory muscles of inspiration
(non-labored) - ANSWER Parasernal muscles, external intercostal, and diaphragm
Which of the following are lymphoud tissue presents the pharynx? - ANSWER Adenoid
tonsils, Palatine tonsils, and Lingual tonsils
Accessory muscles are all of the following except - ANSWER Diaphragm
How many single cartilage are there in the larynx? - ANSWER three
Hysteresis is the graph of the differential lung inflation and deflation pressure? -
ANSWER True
Which of the following is the primary muscle active in quite breathing? - ANSWER
Diaphragm
Which of the following prevents the aspiration of liquids and food? - ANSWER Epiglottis
During inspriation pleural pressure - ANSWER Inceases and become more NEGATIVE
Parasympathetic stimulation raises the viscosity of the airway secretion while
sympatheic stimulation reduces the viscosity? - ANSWER True
The most common threat to maintaining an open upper airway involves inappropriate
positioning of the - ANSWER Tongue
Which of the following statements are true of the phrenic nerves? - ANSWER They
originate from spinal C3 to C5, Enter the chest from scalenus muscles, Sndwiched b/w
subclavian arteries and veins, Injury to nerves causes paralysis
Answers
At what point does the trachea branch into two mainstem bronchi? - ANSWER Carina
What maintains the negativity of interpleural pressure? - ANSWER Lymphatic drainage
and Action of the diaphram
Which of the following is the is the right sequence of events that generate a cough? -
ANSWER The diaphragm contracts for inspriation, inspiratory pause, the larynx closes
the glottis, the abdominal expiratory muscles contract forcefully, and the glottis opens as
gas releases.
What is the name of the most superior part of the sternum? - ANSWER Sternal notch
L/S ratio and PG levels lung maturity in neonates? - ANSWER True
Which of the following structures is responsible for phonation? - ANSWER True vocal
cords
The gas exchange zone consist of what? - ANSWER Aveoli, acini, and respriatory
broncholi
Which of the following are explanation for the left hemidiaphragmatic surface to be
slightly lower than the right? - ANSWER The heart rest on the left half and the liver is
below the right half
Upper airways resist is less than lower airways resistance? - ANSWER False
Stimulation of the irritant receptors in the lung can result in which defense mechanism?
- ANSWER Bronchoconstriction, Reflex closure of glottis, and bradycardia
Pharyngeal tonsils are called - ANSWER Adenoids
Which of the following of the nose is lost if a plastic endotracheal tube is insterted
through the nose or mouth and into the trachea? - ANSWER Air conditioning
Which of the following occurs during inspiration? - ANSWER Diaphragm contracts and
flattens
Of the following, the structures essential in generating high pressure during a cough is
the - ANSWER Vocal cords
Which of the following is a function of the surfactant? - ANSWER Lowers surface
tension
True vocal cords folds a triangular opening leading into the trachea? - ANSWER True
, BIO 135 Final Exam 2022 Questions and
Answers
What is the normal composition of the surfactant? - ANSWER 90% phospholipids and
10% protein
Because of the dichotomous branching bronchial tubes become narrower, this means
the airflow has to squeeze through a smaller diameter and therefore speeds up as it
approaches the aveoli? - ANSWER False
Which of the following pathologic processes is defined as perfusion in excess of
ventilation, ie atelectasis? - ANSWER Shunt
What is the narrowest portion of the airway in the adult larynx? - ANSWER Glottis
All of the follwoing are parts of the sternum except the - ANSWER Carina
Which of the following are considered the primary respiratory muscles of inspiration
(non-labored) - ANSWER Parasernal muscles, external intercostal, and diaphragm
Which of the following are lymphoud tissue presents the pharynx? - ANSWER Adenoid
tonsils, Palatine tonsils, and Lingual tonsils
Accessory muscles are all of the following except - ANSWER Diaphragm
How many single cartilage are there in the larynx? - ANSWER three
Hysteresis is the graph of the differential lung inflation and deflation pressure? -
ANSWER True
Which of the following is the primary muscle active in quite breathing? - ANSWER
Diaphragm
Which of the following prevents the aspiration of liquids and food? - ANSWER Epiglottis
During inspriation pleural pressure - ANSWER Inceases and become more NEGATIVE
Parasympathetic stimulation raises the viscosity of the airway secretion while
sympatheic stimulation reduces the viscosity? - ANSWER True
The most common threat to maintaining an open upper airway involves inappropriate
positioning of the - ANSWER Tongue
Which of the following statements are true of the phrenic nerves? - ANSWER They
originate from spinal C3 to C5, Enter the chest from scalenus muscles, Sndwiched b/w
subclavian arteries and veins, Injury to nerves causes paralysis
