Thursday, November 17, 2011

442 - AIIMS NOVEMBER 2011 Mcqs with answers - part 14

66.A patient presents with pain over the thumb, index and middle finger. All of the following tests are done except
a.Finkelstein test
b.Tinel test
c.Phalen test
d.Torniquet test

67. Which of the following is not involved in translation in eukaryotes?
b.Peptidyl transferase
c.Aminoacyl tRNA
d.RNA polymerase

68. Ossification centre first appears at –
a.end of 2nd month
b.beginning of 2nd month
c.end of 3rd month
d.beginning of 3rd month

Ossification centres appear over a long period during bone growth, many in embryonic life, some in prenatal life, and others well into the postnatal growing period. Initially microscopic, the ossification centres soon become macroscopic and their growth can then be followed by radiological and other scanning techniques.   Many bones, including carpal, tarsal, lacrimal, nasal, and zygomatic bones, inferior nasal conchae and auditory ossicles, ossify from a single centre. Even in this limited group, centres appear between the eighth intrauterine week and the tenth year, a wide sequence for studying growth or estimating age.
However, most bones ossify from several centres, one of which appears in late embryonic or early fetal life (seventh week to fourth month), in the centre of the future bone.
Ossification progresses from the centres towards the ends, which are still cartilaginous at birth. These terminal regions ossify from separate centres, sometimes multiple, which appear between birth and the late teens, and so they are secondary to the earlier primary centre from which much of the bone ossifies. This is the pattern in long bones, as well as in some shorter elements such as the metacarpals and metatarsals, and in the ribs and clavicles.
From the above explanation i presumed the answer to be END OF 2ND MONTH.

69. A patient presents with proptosis and pain after 4 hrs of injury. A bruise is noted in the eye and frontal area?
a.Cavernous sinus thrombosis
b. Internal carotid artery aneurysm
c. Carotico-cavernous fistula
d.Sphenoid fracture

70.Efavirenz acts through the following mechanism
a.Protease inhibitor
b.Preventing HIV entry into cell
c.Reverse transcriptase inhibitor
d.Integrase inhibitor


Anonymous said...

pls give de correct ans for Q 68

Anonymous said...

pls provide other questions also

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