HK 3401 Study Guide - Midterm Guide: Thecal Sac, Dura Mater, Filum Terminale

• School: University of Guelph
• Department: Human Kinetics
• Course: HK 3401
• Professor: Lorraine Jadeski

Document Summary

Spinal cord: runs through vertebral canal, ends around l2, has cervical and lumbar enlargements. Rootlets: iny nerve ibers, irst to branch of spinal cord. Posterior root: carries aferent/sensory informaion (travels towards spinal cord) Anterior root: carries eferent/motor informaion, travels away from spinal cord. Spinal nerve: posterior and anterior roots converge to form spinal nerve, contain both kinds of informaion, exists for a very short length, travel through intervertebral foramina. Rami: spinal nerves become rami, also contain both kinds of informaion. Posterior rami: deep back muscles and sensory to skin. Meninges: 3 thin layers that surround the spinal cord. Arachnoid mater: spider-web , pressure from cerebrospinal luid pushes it up against. Pia mater: shininess that covers spinal cord directly. Deniculate ligament: serrated edges coming of of pia mater atached to dura, between the roots. Epidural space: where an epidural would be injected, in between vertebral canal and. Subarachnoid space: contains cerebrospinal luid, deep to arachnoid.