SACRUM-PELVIC SURFACE VSSLS & NERVES
SUMMARY
1. Median sacral vessels & LN: in the midline
2. Superior hypogastric plexus: extends on the promontory, below is attached the fascia of Waldeyer
3. Sympathetic trunk: on each side of the promontory, medial to the sacral foramina, crosses the base of the ala
4. Piriformis: from 3 ridges (costal elements) between sacral foramina & lateral mass
5. Sacral plexus: lateral to the sacral foramina, on the piriformis (both covered by a parietal pelvic fascia)
Image: Sacral ala. Netter. (2014). Atlas of Human Anatomy, Sixth Edition. 6th ed. Elsevier.
Reference(s)
R.M.H McMinn (1998). Last’s anatomy: regional and applied. Edinburgh: Churchill Livingstone. Get it on Amazon.
Drake, Richard L., et al. Gray's Anatomy for Students. Elsevier, 2023. Get it on Amazon.