BMS 300 Exam 4 UPDATED ACTUAL
Exam Questions and CORRECT Answers
Epithelial cells of the alveoli are covered by a layer of water that does what to surface tension? -
CORRECT ANSWER - Increases
Damage to the lower motor neurons of C3, C4 and C5 (Phrenic nerve) has what effect? -
CORRECT ANSWER - Paralysis of the diaphragm
T/F: Elastic recoil of the lungs to their original volume is an active process - CORRECT
ANSWER - false
What is the function of the type I pneumocytes? - CORRECT ANSWER - Responsible for
gas exchange that takes place in the alveoli
By decreasing the surface tension, surfactant (detergent): - CORRECT ANSWER --
increases lung compliance
-decreases lung elastic recoil
When the shape of a curve is sigmoidal this indicates what? - CORRECT ANSWER -
cooperative binding
Fetal hemoglobin has a higher affinity for Oxygen then maternal hemoglobin. Which direction
will this shift the Oxygen dissociation curve? - CORRECT ANSWER - to the left
Oxygen moves from the _____________ to the ________________, which is from high
concentration to low concentration - CORRECT ANSWER - Alveoli, pulmonary
capillaries
When temperature is increased this decreases the affinity of hemoglobin for Oxygen and the
curve shifts to the right - CORRECT ANSWER - -decreases
, -right
T/F: With decreased carbon dioxide in the blood, the oxygen dissociation curve would shift to
the left. - CORRECT ANSWER - True
In tissues, CO2 will get converted into ___________ through carbonic anhydrase. In the lungs,
the carbonic anhydrase coverts that into _____________ which then diffuses into the lungs. -
CORRECT ANSWER - H+ and HCO3-, H2O and CO2
While climbing a 14er, you realize that the urge to breath has increased. What compound is
responsible for driving a circuit to activate LMNs innervating the diaphragm? - CORRECT
ANSWER - H+
Chemoreceptors in the periphery that monitor oxygen and carbon dioxide are located in: -
CORRECT ANSWER - -Aortic body
-Carotid body
About 70% (most) of the carbon dioxide in the blood is transported as: - CORRECT
ANSWER - HCO3-
The three major functions of the renal system are: - CORRECT ANSWER - -Regulate salt
and water balance
-Regulate blood pH
-Remove nitrogenous waste
Which of the following is the correct order of blood flow through the renal corpuscle? -
CORRECT ANSWER - Afferent arteriole, glomerulus, efferent arteriole
The epithelial cells of Boman's capsule are called __________________. - CORRECT
ANSWER - podocytes
Exam Questions and CORRECT Answers
Epithelial cells of the alveoli are covered by a layer of water that does what to surface tension? -
CORRECT ANSWER - Increases
Damage to the lower motor neurons of C3, C4 and C5 (Phrenic nerve) has what effect? -
CORRECT ANSWER - Paralysis of the diaphragm
T/F: Elastic recoil of the lungs to their original volume is an active process - CORRECT
ANSWER - false
What is the function of the type I pneumocytes? - CORRECT ANSWER - Responsible for
gas exchange that takes place in the alveoli
By decreasing the surface tension, surfactant (detergent): - CORRECT ANSWER --
increases lung compliance
-decreases lung elastic recoil
When the shape of a curve is sigmoidal this indicates what? - CORRECT ANSWER -
cooperative binding
Fetal hemoglobin has a higher affinity for Oxygen then maternal hemoglobin. Which direction
will this shift the Oxygen dissociation curve? - CORRECT ANSWER - to the left
Oxygen moves from the _____________ to the ________________, which is from high
concentration to low concentration - CORRECT ANSWER - Alveoli, pulmonary
capillaries
When temperature is increased this decreases the affinity of hemoglobin for Oxygen and the
curve shifts to the right - CORRECT ANSWER - -decreases
, -right
T/F: With decreased carbon dioxide in the blood, the oxygen dissociation curve would shift to
the left. - CORRECT ANSWER - True
In tissues, CO2 will get converted into ___________ through carbonic anhydrase. In the lungs,
the carbonic anhydrase coverts that into _____________ which then diffuses into the lungs. -
CORRECT ANSWER - H+ and HCO3-, H2O and CO2
While climbing a 14er, you realize that the urge to breath has increased. What compound is
responsible for driving a circuit to activate LMNs innervating the diaphragm? - CORRECT
ANSWER - H+
Chemoreceptors in the periphery that monitor oxygen and carbon dioxide are located in: -
CORRECT ANSWER - -Aortic body
-Carotid body
About 70% (most) of the carbon dioxide in the blood is transported as: - CORRECT
ANSWER - HCO3-
The three major functions of the renal system are: - CORRECT ANSWER - -Regulate salt
and water balance
-Regulate blood pH
-Remove nitrogenous waste
Which of the following is the correct order of blood flow through the renal corpuscle? -
CORRECT ANSWER - Afferent arteriole, glomerulus, efferent arteriole
The epithelial cells of Boman's capsule are called __________________. - CORRECT
ANSWER - podocytes
