Monday, 28 April 2014

MCQ FRCR--- INTERVERTEBRAL DISC

Q.True regarding  intervertebral disk 
a.the nucleus pulposus contain relatively more proteoglycans than annulus pulposus
b.Sharpey fibres attaches inner  anuulus with adjacent vertebral bodies
c.the nucleus pulposus  contain less water than nucleus pulposus
d.increase in water content of disk in evening

ANS ---a.The nucleus pulposus contain relatively more proteoglycans than annulus pulposus,WHILE more collagen is found in annulus pulposus.
Sharpey fibres attaches outer  anuulus with adjacent vertebral bodies
The nucleus pulposus(80-85%)  contain more water than annulus pulposus(80%)
There is decrease  in water content of disk in evening



Q2.All are changes seen in the intervertebral disc with age except

a.increase in ratio of keraton sulphate to chondroitin sulphate
b.the proteoglycans lose close association with the disc collagen
c.water content decreases to 40%
d.gas formation
e.calcification

ANS --C.  Water content decreases to 70 % with age.

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