Superior Rectal Artery

Question 1

Superior rectal artery course

Answer 1

1. Inferior mesenteric artery continuation
2. Begins at middle of Left common iliac vessels
3. Descends in pelvic mesocolon medial limb
4. At S3 vertebra level, it divides into two branches which run along rectum sides

Question 2

Superior rectal artery branches

Answer 2

It gives terminal branches which pierce rectum muscle wall to enter submucosa & anastomose with ascending branches of inferior rectal arteries

Question 3

Superior rectal artery supply

Answer 3

It supplies rectum & anal canal upper half