ANAT 215 Lecture Notes - Lecture 7: Filum Terminale, Arachnoid Mater, Dura Mater

• School: Queen's University
• Department: Anatomy and Cell Biology
• Course: ANAT 215
• Professor: Leslie W Mac Kenzie

Document Summary

Anatomy 215 (reading material; chapter 14: pages 368-374) External topography: - vertebral canal is formed by the collection of the vertebral foramen. Different sections of vertebrae: upper section cervical, most of back thoracic, lower back lumar, around buttocks sacrum, tailbone coccyx beginning: Conus medullaris tapering of spinal cord. Cervical supplies nerves to the upper limbs lumbar (lumbosacral enlargement) supplies nerves to lower limbs and pelvic region. Cauda equina (horse"s tail) filum terminale and long spinal roots (filum terminale is in the middle) Filled with adipose tissue and blood support: Filum terminale within the caudum equina long fibrous extension of the pia mater (from conus medullaris to the bottom of the vertebral column o prevents any superior movement of the spinal cord. Denticulate ligaments prevent any lateral movement of the spinal cord. Posterior median sulcus (not as evident as the amf) these grooves serve to separate the spinal cord into left and right segments o.