FREE NEET PG MCQ on 29 Nov 2016

Neet Pg

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 DAILY FREE MCQ CHALLENGE for Medical PG Preparation

Question
ALL of the following muscles compress the vagina and act as sphincters, EXCEPT:

A. Internal urethral sphincter
B. External urethral sphincter
C. Urethrovaginal sphincter
D. Bulbospongiosus

TIPSImportant Question from NEET PG

Answer : A. Internal urethral sphincter

Explanation : 

Four muscles compress the vagina and acts as sphincters, they are ubovaginalis
external urethral sphincter, urethrovaginal sphincter and bulbospongiosus.

  • Vagina is related anteriorly to the fundus of the urinary bladder and urethra.
  • Laterally to the levator ani, visceral pelvic fascia and ureters
  • Posteriorly to the anal canal, rectum and recto uterine pouch

 


Reference :

Cunningham F, Leveno KJ, Bloom SL, Spong CY, Dashe JS, Hoffman BL, Casey BM, Sheffield JS. Maternal Anatomy. In: Cunningham F, Leveno KJ, Bloom SL, Spong CY, Dashe JS, Hoffman BL, Casey BM, Sheffield JS. eds. Williams Obstetrics, Twenty-Fourth Edition.


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