Mcq Subject: Physiology
When a person stands suddenly from lying down posture, there is
A. Increased tone of capacitance vessels.
B. Increase efferent discharge from IX cranial nerve
C. Decreased heart rate
D. All of the above
View DescriptionThe only Sugar normaly absorbed in the intestine against a concentration gradient is :
A. Xylose
B. Mannose
C. Glucose
D. Ribose
View DescriptionPlateau phase of cardiac muscle is due to
A. East Na + channel opening
B. Opeaning of Ca++Na+ channels
C. Opeaning of Slow Ca++ channels
D. Opeaning of K + channels
View DescriptionIn a study, dye ABC is used to measure cardiac output and blood volume. The dye is replaced with a new dye XYZ which diffuses more rapidly out of the capillaries. This would affect the study by
A. Normal cardiac output, altered blood volume
B. Altered cardiac output, normal blood volume estimation
C. Both altered
D. Both normal
View DescriptionPlasma membrane of cell is bounded to cytoskeleton by which of the following?
A. Spectrin
B. Ankyrin
C. Tubulin
D. Laminin
View DescriptionAll of the following factors increases the level of respiratory neuron activity in the medulla, EXCEPT:
A. Rise in the PCO2
B. Rise in H+ concentration of aerial blood
C. Rise in Po2
D. Drop in Po2
View DescriptionWhich of the following is true about ventilation and perfusion in alveoli in an erect posture
A. Ventilation/perfusion ratio is maximum at apex
B. Ventilation/perfusion ratio is maximum at base
C. Ventilation is maximum at apex
D. Perfusion is maximum at apex
View DescriptionGet More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now