Physiology MCQs

Page No. 24

The oral and pharyngeal phases of swallowing take place very rapidly and last about______________?


a3.5 seconds


b1-1.5 seconds


c6.0 seconds


d9.5 seconds


View Answer 1-1.5 seconds

In a DNA molecule adenine always forms a linkage with______________?


aGuanine


bCytosine


cThymine


dUracil


View Answer Thymine

When a person lies down_______________?


aThere is immediate increase in venous return


bHeart rate becomes stable at slightly more than normal


cCerebral blood flow increase & becomes stable at more than normal


dBlood flow to the Apex of lung decrease



Open faced nucleus in a cell signifies______________?


aThat the cell is resting


bthat the cell is active


cnothing


dthat the cell is in transition phase



primary cause of bleeding disorder in liver damage is due to______________?


aDecreased level of prothrombin


bLack of vitamin K


cPlatelet deficiency


dLack of vitamin B



_________ is an example for rapidly acting neurotransmitter?


aSomatostatin


bCalcitonin


cSubstance P


dGlycine


View Answer Glycine

Regarding Golgi tendon organ true is ______________?


aSenses dynamic length of muscle


bInvolved in reciprocal innervation


ca- motor neuron stimulation


dSense muscle tension


View Answer Sense muscle tension

Valve of Hasner is present at________________?


aStensons duct


bcommon bile duct


cNaso lacrimal duct


dmaxillary Sinus


View Answer Naso lacrimal duct

The processing of short-term memory to long term memory is done in_______________?


aPrefrontal cortex


bHippocampus


cNeocortex


dAmygdala


View Answer Hippocampus

False about blood brain barrier is_______________?


aThere are gaps between tight junctions at the active sites


bThere are no gaps between active sites


cLess activity in the membrane


dFibronectin provides a barrier for diffusion



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