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HS210 Exam 4 Questions And Answers
100% Verified And Updated.
Complete the following statement using the choices below. Air moves out of the lungs when the
pressure inside the lungs is - Answer✔greater than the pressure in the atmosphere
which of the following lists the structures in the correct order of inward air flow -
Answer✔nasopharynx, oropharynx, laryngopharynx, larynx, trachea
which of the following will influence external respiration? - Answer✔all of the above influence
external respiration
(thickness/SA of respiratory membrane, gas partial pressure gradients, gas solubility, ventilation-
perfusion coupling)
henry's law states that solubility of a gas ________ as ________ of the gas increases. -
Answer✔increases, partial pressure
the process of respiration that moves air into and out of the lungs is known as ________ and will
decrease upon _________ nervous system activation. - Answer✔pulmonary ventilation,
parasympathetic
Sharna has been having difficulty breathing for the past month. Her primary care physician ran a
test and determined that her __________ cells have been attacked and completely destroyed in
one lung. That lung is now more susceptible to collapse due to her reduced surfactant levels, and
she will likely continue to notice direct difficulty in ________. - Answer✔type II alveolar,
respiration
an obstruction in the airway resulting in decreased ventilation and decreased levels of available
oxygen, should cause which of the following changes? - Answer✔pulmonary arteriole
vasoconstriction
Timothy has been having difficulty breathing since he had pneumonia last month. Recently he
had severe pain in his chest and back, and his breathing was extremely irregular. The doctor at
the emergency room told him that one of the lobes of his lung had collapsed. Which of the
following pressure scenarios would best explain how part of his lung collapsed? - Answer✔Patm
> Ppul < Pip
based on the oxygen-hemoglobin dissociation curve image (to the right) which of the following
would cause the curve to shift right - Answer✔an acidic internal environment
1|Page
, ©FYNDLAY 2024/2025 ALL RIGHTS RESERVED.
consider the tidal volume (pictured below)
which of the following images best represents physiologically plausible curves for pressure
changes of intrapulmonary and intrapleural pressures matching the given tidal volume. -
Answer✔C (two waves going negative then positive)
Consider a pleural effusion (a buildup of excess fluid in the pleural space between the lung and
the chest wall). Which of the following choices best describes the tidal volume and pressures of
the lung with the pleural effusion? - Answer✔Decreased tidal volume and decreased
transpulmonary pressure
based on the oxygen-hemoglobin dissociation curve displayed, which point best represents the
Haldane Effect or oxygen loading at the alveoli - Answer✔point D
based on the oxygen-hemoglobin dissociation curve displayed, which point best represents the
O2-Hb relationship during strenuous exercise - Answer✔Point A
the correct anatomical flow or urine is as follows - Answer✔renal pyramid, minor calyx, major
calyx, renal pelvis, ureter, bladder, urethra
__________ cells release renin which ultimately leads to increased ____________ -
Answer✔Juxtaglomerular (JG) or granular cells, glomerular filtration
Which of the following answers supports filtration but not selective filtration in the renal
corpuscle - Answer✔afferent arteriole blood pressure
Patm = Ppul - Answer✔no change (ventilation)
decreased lung compliance - Answer✔decrease (ventilation)
sympathetic activation of bronchiole smooth muscles - Answer✔increase (ventilation)
pulmonary arteriole vasodilation - Answer✔increase (ventilation)
increase flexibility of the thorax - Answer✔increase (ventilation)
same volume but decreased surface area in the alveolar sacs - Answer✔no change (ventilation)
accumulation of the scar tissue (fibrosis) replacing lung tissue - Answer✔decrease (ventilation)
paralysis of external intercostal muscles - Answer✔increase (ventilation)
macula densa cells sense a decrease in NaCl filtrate content - Answer✔increase (glomerular
filtration)
renal efferent arterioles vasodilate - Answer✔increase (glomerular filtration)
the visceral layer of the renal corpuscle is composed of all simple squamous cells rather than
podocytes - Answer✔decrease (glomerular filtration)
2|Page
HS210 Exam 4 Questions And Answers
100% Verified And Updated.
Complete the following statement using the choices below. Air moves out of the lungs when the
pressure inside the lungs is - Answer✔greater than the pressure in the atmosphere
which of the following lists the structures in the correct order of inward air flow -
Answer✔nasopharynx, oropharynx, laryngopharynx, larynx, trachea
which of the following will influence external respiration? - Answer✔all of the above influence
external respiration
(thickness/SA of respiratory membrane, gas partial pressure gradients, gas solubility, ventilation-
perfusion coupling)
henry's law states that solubility of a gas ________ as ________ of the gas increases. -
Answer✔increases, partial pressure
the process of respiration that moves air into and out of the lungs is known as ________ and will
decrease upon _________ nervous system activation. - Answer✔pulmonary ventilation,
parasympathetic
Sharna has been having difficulty breathing for the past month. Her primary care physician ran a
test and determined that her __________ cells have been attacked and completely destroyed in
one lung. That lung is now more susceptible to collapse due to her reduced surfactant levels, and
she will likely continue to notice direct difficulty in ________. - Answer✔type II alveolar,
respiration
an obstruction in the airway resulting in decreased ventilation and decreased levels of available
oxygen, should cause which of the following changes? - Answer✔pulmonary arteriole
vasoconstriction
Timothy has been having difficulty breathing since he had pneumonia last month. Recently he
had severe pain in his chest and back, and his breathing was extremely irregular. The doctor at
the emergency room told him that one of the lobes of his lung had collapsed. Which of the
following pressure scenarios would best explain how part of his lung collapsed? - Answer✔Patm
> Ppul < Pip
based on the oxygen-hemoglobin dissociation curve image (to the right) which of the following
would cause the curve to shift right - Answer✔an acidic internal environment
1|Page
, ©FYNDLAY 2024/2025 ALL RIGHTS RESERVED.
consider the tidal volume (pictured below)
which of the following images best represents physiologically plausible curves for pressure
changes of intrapulmonary and intrapleural pressures matching the given tidal volume. -
Answer✔C (two waves going negative then positive)
Consider a pleural effusion (a buildup of excess fluid in the pleural space between the lung and
the chest wall). Which of the following choices best describes the tidal volume and pressures of
the lung with the pleural effusion? - Answer✔Decreased tidal volume and decreased
transpulmonary pressure
based on the oxygen-hemoglobin dissociation curve displayed, which point best represents the
Haldane Effect or oxygen loading at the alveoli - Answer✔point D
based on the oxygen-hemoglobin dissociation curve displayed, which point best represents the
O2-Hb relationship during strenuous exercise - Answer✔Point A
the correct anatomical flow or urine is as follows - Answer✔renal pyramid, minor calyx, major
calyx, renal pelvis, ureter, bladder, urethra
__________ cells release renin which ultimately leads to increased ____________ -
Answer✔Juxtaglomerular (JG) or granular cells, glomerular filtration
Which of the following answers supports filtration but not selective filtration in the renal
corpuscle - Answer✔afferent arteriole blood pressure
Patm = Ppul - Answer✔no change (ventilation)
decreased lung compliance - Answer✔decrease (ventilation)
sympathetic activation of bronchiole smooth muscles - Answer✔increase (ventilation)
pulmonary arteriole vasodilation - Answer✔increase (ventilation)
increase flexibility of the thorax - Answer✔increase (ventilation)
same volume but decreased surface area in the alveolar sacs - Answer✔no change (ventilation)
accumulation of the scar tissue (fibrosis) replacing lung tissue - Answer✔decrease (ventilation)
paralysis of external intercostal muscles - Answer✔increase (ventilation)
macula densa cells sense a decrease in NaCl filtrate content - Answer✔increase (glomerular
filtration)
renal efferent arterioles vasodilate - Answer✔increase (glomerular filtration)
the visceral layer of the renal corpuscle is composed of all simple squamous cells rather than
podocytes - Answer✔decrease (glomerular filtration)
2|Page
