Monday, December 13, 2010

3 rd Week Dec 2010 Anatomy's Quiz


Bismillah...Can you lend me only 10 minutes for this questions...realizing that this facts are vital and quite interesting...so, let us at least revised them...~wasalam

Larynx
  1. Muscle that adduct the vocal cord : a)................., b)....................., c).....................
  2. Muscle that abduct the vocal cord :-  Name : ...................., Origin : ............, Insertion : ...............
  3. Nerve supply of larynx :- a).................................., b)....................................... 
Answer :
1) Lat. CricoArytenoid muscle, Transverse Arytenoid muscle, CricoThyroid muscle
2) Post. CricoArytenoid muscle, origin: post. surface of cricoid lamina, insertion: post. surface of muscular process of arytenoid cartilage. 
3) Recurrent laryngeal N (motor: all larynx muscles EXCEPT cricothyroid, sensory: mucosa larynx below vocal cords), Superior laryngeal N (Ext. laryngeal N: cricothyroid, Int. laryngeal N: mucosa larynx above vocal cords and epiglottis)

Spinal cord

  1. Site : .....................................
  2. Begin : ....................................., 
  3. End: ..........................................
  4. Fixation : a) ...............,b) ................., c) .....................d) .....................
  5. Changes in length according to age : 
  • By 3 rd month of intra- uterine life : .......................................................
  • At birth : ......................................................................
  • In adult : ....................................................................
Answers :
1) upper 2/3 of vertebral canal
2) lower border of foramen magnum (continuation of medulla oblongata),
3) lower border of L1 vertebra  (level of discs between L1/L2 vertebrae)
4) filum terminal, denticulate lig, subarachnoid septum, dura mater
5) equal length to vertebral column, ends at level of L3 vertebra, ends at level between L1/L2 vertebrae 
fahmie GEN09 MEMBER

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