Physiology MCQs

Page No. 11

Pain producing substance is________________?


aSerotonin


bSubstance P


cHistamine


dAcetyl choline


View Answer Substance P

Red colour blindness is called________________?


aDeuteranopia


bProtanopia


cProtanomaly


dDeuteranomaly


View Answer Protanopia

Tissues with least regenerative potential is________________?


aNerve


bSkin


cCardiac muscle


dNone of the above


View Answer Nerve

Sweat glands are supplied by only_______________?


aParasympathetic nerves


bSympathetic nerves


cSensory nerves


dMotor nerves


View Answer Sympathetic nerves

The cell junctions allowing exchange of cytoplasmic molecules between two cells are called________________?


aGap junctions


bTight junctions


cAnchoring junctions


dFocal junctions


View Answer Gap junctions

Following are extrapyramidal tracts except______________?


aReticulospinal


bCorticospinal


cRubrospinal


dVestibulospinal


View Answer Corticospinal

Afferent component of corneal reflex is mediated by ________________?


aVagus nerve


bFacial nerve


cTrigeminal nerve


dGlossopharyngeal nerve


View Answer Trigeminal nerve

Blood supply to the brain during moderate exercise________________?


adecreases


bRemains constant


cIncreases


dIncreases then decreases


View Answer Remains constant

Which of the following acts as a neurotransmitter inhibitor _______________?


aGlutamate


bGABA


cAspartic acid


dLysin


View Answer GABA

The pathway of pain from teeth and temperature is carried by ______________?


aCorticospinal tract


bCorticocerebral tract


cLateral spinothalamic tract


dVentral spinothalamic tract



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