Mcq Subject: Physiology
True about pheochromocytoma is
A. Arises from chromaffin cells of adrenal medulla
B. Bilateral in 20% of all cases
C. Hypotension rules out pheochromocytoma
D. Almost always a malignant tumor
View DescriptionWhich is TRUE regarding nerve conduction:
A. All or none phenomenon
B. Conduction independent of amplitude
C. Propagated action potential is generated in dendrites
D. Faster in unmyelinated fibres
View DescriptionFollowing are true about HCO3-except:
A. Extracellular concentration 25 m mol
B. Intracellular concentration 10 m mol
C. 7.5% solution gives 2 nmols
D. In kidney, HCO3- is produced by carbonic anhydrase
View DescriptionResting membrane potential is maximally affected by which ion-
A. Na+
B. K+
C. Ca2+
D. Cl-
View DescriptionAccording to Herrington classification, the decerebrate rigidity is characterized by all except
A. Rigidity occurs in all the muscles of the body
B. Increase in the rate of discharge of the Y efferent neuron
C. Increased excitability of the motor neuron pool
D. Decerebration produces no phenomenon akin to spinal shock
View DescriptionHypercarbia is characterized by:
A. Miosis
B. Cool extremities
C. Bradycardia
D. Hypeension
View DescriptionMesangial cells are contracted by
A. Histamine
B. Nitric oxide
C. Bradykinin
D. Dopamine
View DescriptionThe maintenance of posture in a normal adult human being depends upon:
A. Integrity of reflex arc
B. Muscle power
C. Type of muscle fibers
D. Joint movements in physiological range
View DescriptionHyperaldosteronism is associated with all except:
A. Hypernatremia
B. Hypokalemia
C. Hypertension
D. Metabolic acidosis
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