Human Physiology 261 Midterm Exam
Questions And Correct Answers.
Perfusion - Answer The supply of oxygen to and removal of wastes from the cells and tissues of the
body as a result of the flow of blood through the capillaries.
Ventilation - Answer the movement of air into and out of the lungs
Alveoli - Answer tiny sacs of lung tissue specialized for the movement of gases between air and blood
surfactant - Answer chemical produced in the lungs to maintain the surface tension of the alveoli and
keep them from collapsing
Boyle's Law - Answer P1V1=P2V2
A principle that describes the relationship between the pressure and volume of a gas at constant
temperature
aveolar ventilation rate - Answer Alveolar ventilation = ventilation rate x (tidal volume - dead space
volume).
erthropoietin - Answer Red blood cell production is regulated primarily by erythropoietin. (produced
primarily in kidneys)
Thrombopoietin - Answer (produced in the liver and kidneys) regulates the growth and maturation of
megakaryocytes; platelets
Hematocrit - Answer the percentage of whole blood occupied by RBC. It is used to indicate: packed cell
volume, ration of RBC to total blood volume, and anemia.
hemolysis - Answer destruction of red blood cells
Questions And Correct Answers.
Perfusion - Answer The supply of oxygen to and removal of wastes from the cells and tissues of the
body as a result of the flow of blood through the capillaries.
Ventilation - Answer the movement of air into and out of the lungs
Alveoli - Answer tiny sacs of lung tissue specialized for the movement of gases between air and blood
surfactant - Answer chemical produced in the lungs to maintain the surface tension of the alveoli and
keep them from collapsing
Boyle's Law - Answer P1V1=P2V2
A principle that describes the relationship between the pressure and volume of a gas at constant
temperature
aveolar ventilation rate - Answer Alveolar ventilation = ventilation rate x (tidal volume - dead space
volume).
erthropoietin - Answer Red blood cell production is regulated primarily by erythropoietin. (produced
primarily in kidneys)
Thrombopoietin - Answer (produced in the liver and kidneys) regulates the growth and maturation of
megakaryocytes; platelets
Hematocrit - Answer the percentage of whole blood occupied by RBC. It is used to indicate: packed cell
volume, ration of RBC to total blood volume, and anemia.
hemolysis - Answer destruction of red blood cells
