ANUS ANAL CANAL 1-FISSURE &PILONIDAL SINUS

THE ANUS ANAL CANAL MCQS


Q1-The following are all anatomical features of the anal canal EXCEPT:
a- It commences at the pelvic diaphragm and 3nds at the anal verge
b- The anorecatal ring marks the vascular junction between the rectum and the anal canal
c- The external sphincter is a striated boundary muscle supplied by autonomic nerves
d-The puborectalis muscle maintains the anorectal angle

Q2.Which is NOT true of the rectum and anal canal?
a-The internal sphincter is a thickened continuation of the circular muscle
b-The dentate line represents the site of fusion of the proctodeum and the postallantoic gut
c-Division of the anorectal ring results in permanent incontinence
d-The squamous epithelium in the lower anal canal is rich in hair and sweat glands

Q3, A 20 years man is diagnosed to have a fissure-in-ano . He has a 2-days history, and has never had this condition earlier. Which of the following is LEAST likely ?
a-Pain is a dominant feature
b-On examination a longitudinal ulcer will be seen posteriorly
c-Perianal shriveled skin tags will present, which will be painful
d-The primary plan lf treatment should be non operative

Q5,All are features of pilonidal sinus EXCEPT:
a-It usually acquired in origin
b-Other than sinuses over the distal coccyx , the next most common site for pilonidal sinus is interdigital
c-Recurrences are extremely rare once excision of the tract is carried out
d-The sinus tract ends blindly near the sacrum