All India Institute of Medical Sciences 2008 M.D Physiology - Question Paper

Physiology

10.NITROGEN NARCOSIS IS CAUSED DUE TO?
A. INCREASED SUSCEPTIBILITY OF NEURONS FOR NITROGEN
B. NITROGEN INHIBITS DISMUTASE ENZYME
C. reduce IN OXYGEN FREE RADICALS
D. INCREASED PRODUCTION OF NITROUS OXIDE
ans-a

11. CSF PRESSURE DEPENDS PRIMARILY UPON?
A.RATE OF FORMATION FROM CHOROID PLEXUS
A. RATE OF ABSORPTION
C. CEREBRAL BLOOD FLOW
D. BLOOD PRESSURE
ans-b

12.ALL ARE NON FUNCTIONAL PLASMA ENZYMES EXCEPT?
A. LIPOPROTEIN LIPASE
B. HORMONE SENSITIVE LIPASE
C. ALKALINE PHOSPHATASE
D. PROSTATE SPECIFIC PHOSPHATASE
ans-a

13.MAXIMUM POST PRANDIAL MOTILITY IS SEEN IN?
A. ASCENDING COLON
B. DESCENDING COLON
C. SIGMOID COLON
D. TRANSEVERSE COLON
ans-c

14. VAGAL STIMULATION OF HEART CAUSES?
A. INCREASED HR
B. . INCREASED RR INTERVAL
C. . INCREASED CARDIAC OUTPUT
D. . INCREASED FORCE OF CONTRACTION
ans-b

15. actual ABOUT WEBER FESCHNER LAW?
A. GRADATIONS OF STIMULUS STRENGTH ARE DiscRIMINATED APPROXIMATELY IN PROPORTION TO
THE LOGARITHM OF THE STIMULUS STRENGTH
B.
C.
D.
ans?

16.CELLS current IN CEREBRAL CORTEX ARE ALL EXCEPT?
A. BIPOLAR CELLS
B. PURKINJE CELLS
D. GOLGI CELLS
D. GRANULE CELLS
ans-a

17. WHICH DOES NOT LIES IN MEDULLA?
A. COLLECTING DUCT
B. JG APPARATUS
C. VASA RECTA
D. LOOP OF HENLE
ans-b

18.MINERALOCORTICOID RECEPTORS ARE current IN ALL EXCEPT?
A. LIVER
B. GLOMERULAR TUBULES
C. COLON
D. HIPPOCAMPUS
ans-a

19. WHICH IS TRUE?
A. CLEARANCE OF A SUBSTANCE IS GREATER THAN GFR IF TUBULAR SECRETION OCCOURS
B. CLEARANCE OF A SUBS IS ALWAYS INCREASED IF THERE IS TUBULAR SECRETION
C. DESCENDING LOH HAS HYPOTONIC URINE
D. DESCENDING LOH IS PERMEABLE TO SOLUTES
ans-a

20. MEAN CIRCULATING FILLING PRESSURE IS?
A. DIFFERENCE ranging from CENTRAL VENOUS PRESSURE AND CENTRAL ARTERIAL PRESSURE
B. MEAN ATRIAL PRESSURE
C. ARTERIALPRESSURE TAKEN JUST AT THE POINT WHEN HEART STOPS BEATING
D. DIFFERENCE ranging from SYSTEMIC AND PULMONARY ARTERIAL PRESSURE
ans-c

21.WHICH IS actual ABOUT PRESYNAPTIC INHIBITION?
A. OCCOURS DUE TO HYPERPOLARISATION OF PRESYNAPTIC MEMBRANE
B. OCCOURS DUE TO INHIBITION OF RELEASE OF NEUROTRANSMITTER FROM PRESYNAPTIC
TERMINAL
C. PRODUCES ACTION POTENTIAL
D.
ans-B

22.CIRCADIAN RHYTHM IS CONTROLLED BY?
A. SUPRACHIASMATIC NUCLEUS
B. MEDIAN EMINENCE
C. PARAMEDIAN NU
D. SUPRAOPTIC NUCLEI
ans-a

Earning:   Approval pending.