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Human Physiology 261 Midterm Exam
Questions Exam (2025) Exam Questions
& Answers | Latest Already Graded A+
UPDATE 2025|2026!! Study Guide
Perfusion - (answers)The flow of blood through the pulmonary capillaries that
surround the alveoli.
Ventilation - (answers)Total Pulmonary Ventilation.
Normal Value of Total Pulmonary Ventilation - (answers)6 L/min.
Ventilation Rate - (answers)Number of breaths per minute.
Alveolar Ventilation - (answers)Measure of the amount of air that reaches the
alveoli and participates in gas exchange.
Normal Range of Alveolar Ventilation - (answers)4.2 L/min.
Alveoli - (answers)Sites for gas exchange.
Surfactant - (answers)Secreted by Type 2 alveolar cells to decrease the 'stickiness'
(hydrogen bonds) of water in order to keep alveoli open.
, 2
Boyle's law - (answers)P1V1 = P2V2; it describes the relationship between
pressure and volume.
Erythropoietin - (answers)Hormone that regulates red blood cell production,
primarily produced in kidneys.
Thrombopoietin - (answers)Hormone that regulates platelet production, primarily
produced in the liver.
Hematocrit - (answers)Ratio of blood cells to plasma, expressed as a percentage
via centrifuge.
Hemolysis - (answers)The breakdown of blood cells.
Fibrinolysis - (answers)Process of breaking down blood clots to restore normal
blood flow.
Tissue plasminogen activator (tPA) - (answers)Activates plasminogen, which is
converted to plasmin.
Blood Composition - (answers)55% Plasma: Liquid component consisting of water
(92%), proteins (7%), and remaining (1%) including ions, organic molecules, gases,
and trace elements.
Human Physiology 261 Midterm Exam
Questions Exam (2025) Exam Questions
& Answers | Latest Already Graded A+
UPDATE 2025|2026!! Study Guide
Perfusion - (answers)The flow of blood through the pulmonary capillaries that
surround the alveoli.
Ventilation - (answers)Total Pulmonary Ventilation.
Normal Value of Total Pulmonary Ventilation - (answers)6 L/min.
Ventilation Rate - (answers)Number of breaths per minute.
Alveolar Ventilation - (answers)Measure of the amount of air that reaches the
alveoli and participates in gas exchange.
Normal Range of Alveolar Ventilation - (answers)4.2 L/min.
Alveoli - (answers)Sites for gas exchange.
Surfactant - (answers)Secreted by Type 2 alveolar cells to decrease the 'stickiness'
(hydrogen bonds) of water in order to keep alveoli open.
, 2
Boyle's law - (answers)P1V1 = P2V2; it describes the relationship between
pressure and volume.
Erythropoietin - (answers)Hormone that regulates red blood cell production,
primarily produced in kidneys.
Thrombopoietin - (answers)Hormone that regulates platelet production, primarily
produced in the liver.
Hematocrit - (answers)Ratio of blood cells to plasma, expressed as a percentage
via centrifuge.
Hemolysis - (answers)The breakdown of blood cells.
Fibrinolysis - (answers)Process of breaking down blood clots to restore normal
blood flow.
Tissue plasminogen activator (tPA) - (answers)Activates plasminogen, which is
converted to plasmin.
Blood Composition - (answers)55% Plasma: Liquid component consisting of water
(92%), proteins (7%), and remaining (1%) including ions, organic molecules, gases,
and trace elements.
