Median Sacral Artery

Question 1

Median sacral artery course

Answer 1

1. From aorta back above its bifurcation
2. Descends in middle line in front of L4 & L5 vertebrae, sacrum and coccyx to
   end in front of coccyx as vascular mass (glomus coccygeum)

Question 2

Median sacral artery branches

Answer 2

1. Small lumbar artery (arteria lumbalis ima)
2. Branch to anorectal region
3. Branches which enter anterior sacral foramina to supply sacral canal contents & anastomose with lateral sacral arteries