ESS2001 Physiology EXSC 293: Chapter 7
Practice Questions And Answers Verified 100%
Correct
When pulmonary stretch receptors send a signal that triggers a shortened duration of
inspiration, this is known as the ____. - ANSWER Hering-Breuer reflex
The ___ are sac like structures that facilitate gas exchange in the respiratory zone. -
ANSWER alveoli
___ Law states that at a given constant temperature, pressure and volume are inversely
proportional to each other. - ANSWER Boyle's
____ is the (usually) passive process of breathing out air. - ANSWER Expiration
___ respiration is the physiological process of gas exchange between lungs and
pulmonary capillary blood. - ANSWER External
___ respiration is the physiological process of gas exchange between the blood and
body tissues. - ANSWER Internal
_____, more often just called breathing, is the process by which we move air into and
out of the lungs. - ANSWER pulmonary ventilation
The ___ assists with venous return when we change intra-abdominal and intra-thoracic
pressures by breathing in and out. - ANSWER respiratory pump
____ is the volume of air left in the lungs after a person has exhaled as much as
possible. - ANSWER residual volume (RV)
____= vital capacity + residual volume - ANSWER total lung capacity (TLC)
The maximal amount of air that a person can exhale after a maximal inhalation is called
____. - ANSWER vital capacity (VC)
Lung volumes, capacities, and flow rates are measured using a technique called ____. -
ANSWER spirometry
The volume of air entering and leaving the lungs during quiet breathing is the ____. -
ANSWER tidal volume
, The ____ is the structure in the lungs that is composed of the alveolar wall, the capillary
wall, and their respective basement membranes. - ANSWER respiratory membrane
According to ___ Law, the total pressure of a mixture of gases (like atmospheric air)
equals the sum of the partial pressures of the individual gases in the mixture. -
ANSWER Dalton's
____ Law states that the rate of gas diffusion through a tissue (like the respiratory
membrane) is proportional to the surface area and the gas partial pressure gradient. -
ANSWER Fick's
___ Law states that gasses dissolve in liquids in proportion to their respective partial
pressures. - ANSWER Henry's
The rate at which oxygen can diffuse from the alveoli into the blood is referred to as the
____ and is expressed as the volume of oxygen that diffuses through a membrane per
minute per 1 mmHg of pressure difference. - ANSWER oxygen diffusion capacity
The pressure exerted by an individual gas in a gas mixture is called its ____. -
ANSWER partial pressure
When gases move across the respiratory membrane and are exchanged between the
alveoli and the pulmonary capillary blood, this specific process is called ____. -
ANSWER pulmonary diffusion
The vast majority of oxygen transported in the blood is bound to ___. - ANSWER
hemoglobin
When the oxyhemoglobin dissociation curve shifts to the right from changes in pH or
temperature, this is known as the ____. - ANSWER Bohr effect
When carbon dioxide is bound to hemoglobin, this molecule is called ____. - ANSWER
carbaminohemoglobin
The _____ is a graphical representation of the relationship between the partial pressure
of oxygen and the degree of hemoglobin saturation. - ANSWER oxyhemoglobin
dissociation curve
The majority of carbon dioxide in the blood is transported as this molecule: ____. -
ANSWER bicarbonate
The difference in oxygen content between arterial and mixed venous blood, known as
the ____, is an index of oxygen extraction by body tissues. - ANSWER arterial-mixed
venous oxygen difference ((a-v)O2 difference)
Practice Questions And Answers Verified 100%
Correct
When pulmonary stretch receptors send a signal that triggers a shortened duration of
inspiration, this is known as the ____. - ANSWER Hering-Breuer reflex
The ___ are sac like structures that facilitate gas exchange in the respiratory zone. -
ANSWER alveoli
___ Law states that at a given constant temperature, pressure and volume are inversely
proportional to each other. - ANSWER Boyle's
____ is the (usually) passive process of breathing out air. - ANSWER Expiration
___ respiration is the physiological process of gas exchange between lungs and
pulmonary capillary blood. - ANSWER External
___ respiration is the physiological process of gas exchange between the blood and
body tissues. - ANSWER Internal
_____, more often just called breathing, is the process by which we move air into and
out of the lungs. - ANSWER pulmonary ventilation
The ___ assists with venous return when we change intra-abdominal and intra-thoracic
pressures by breathing in and out. - ANSWER respiratory pump
____ is the volume of air left in the lungs after a person has exhaled as much as
possible. - ANSWER residual volume (RV)
____= vital capacity + residual volume - ANSWER total lung capacity (TLC)
The maximal amount of air that a person can exhale after a maximal inhalation is called
____. - ANSWER vital capacity (VC)
Lung volumes, capacities, and flow rates are measured using a technique called ____. -
ANSWER spirometry
The volume of air entering and leaving the lungs during quiet breathing is the ____. -
ANSWER tidal volume
, The ____ is the structure in the lungs that is composed of the alveolar wall, the capillary
wall, and their respective basement membranes. - ANSWER respiratory membrane
According to ___ Law, the total pressure of a mixture of gases (like atmospheric air)
equals the sum of the partial pressures of the individual gases in the mixture. -
ANSWER Dalton's
____ Law states that the rate of gas diffusion through a tissue (like the respiratory
membrane) is proportional to the surface area and the gas partial pressure gradient. -
ANSWER Fick's
___ Law states that gasses dissolve in liquids in proportion to their respective partial
pressures. - ANSWER Henry's
The rate at which oxygen can diffuse from the alveoli into the blood is referred to as the
____ and is expressed as the volume of oxygen that diffuses through a membrane per
minute per 1 mmHg of pressure difference. - ANSWER oxygen diffusion capacity
The pressure exerted by an individual gas in a gas mixture is called its ____. -
ANSWER partial pressure
When gases move across the respiratory membrane and are exchanged between the
alveoli and the pulmonary capillary blood, this specific process is called ____. -
ANSWER pulmonary diffusion
The vast majority of oxygen transported in the blood is bound to ___. - ANSWER
hemoglobin
When the oxyhemoglobin dissociation curve shifts to the right from changes in pH or
temperature, this is known as the ____. - ANSWER Bohr effect
When carbon dioxide is bound to hemoglobin, this molecule is called ____. - ANSWER
carbaminohemoglobin
The _____ is a graphical representation of the relationship between the partial pressure
of oxygen and the degree of hemoglobin saturation. - ANSWER oxyhemoglobin
dissociation curve
The majority of carbon dioxide in the blood is transported as this molecule: ____. -
ANSWER bicarbonate
The difference in oxygen content between arterial and mixed venous blood, known as
the ____, is an index of oxygen extraction by body tissues. - ANSWER arterial-mixed
venous oxygen difference ((a-v)O2 difference)
