Anatomy of the Spinal Cord Structure of the
- Slides: 18
Anatomy of the Spinal Cord Structure of the spinal cord v Tracts of the spinal cord v Spinal cord syndromes Won Taek Lee, M. D. , Ph. D. ﺩکﺘﺮ ﻣﻬﺮﺍﻥ ﻣﺮﺍﺩی ﺭﺯیﺪﻧﺖ ﺟﺮﺍﺣی ﻣﻐﺰ ﻭ ﺍﻋﺼﺎﺏ : ﺗﻨﻈیﻢ ﻭ ﺑﺎﺯﻧگﺮی
Spinal Cord - Comparable to Input-Output (IO) System of the Computer - Spinal Nerve (C 8, T 12, L 5, S 5, Cx 1) - Segmental Structure of Neural Tube Origin
Spinal segment C 8, T 12, L 5, S 5, Cx 1 Anterior (Ventral) Root Posterior (Dorsal) Root Dorsal Root (Spinal) Ganglion Root - Rootlets
Spinal Cord External Figure Conus Medullaris (L 1 -2) Spinomedullary Junction - Foramen Magnum, Pyramidal decussation, C 1 ventral root Enlargements - cervical (C 5 -T 1) & lumbosacral (L 1 -L 4) Longitudinal Fissures - anterior median fissure - anterolateral fissure - posterior median sulcus - posterolateral sulcus
Conus Medullaris (L 1 -2) Cauda Equina Anterior median fissure Anterolateral fissure
Posterior median sulcus Posterolateral sulcus Posterior intermediate sulcus Fasciculus cuneatus Fasciculus gracilis Posterior surface of the spinal cord
Spinal Cord Meninges Periosteum of Vertebra - Epidural Space --------- epidural anesthesia Dura Mater Spinalis Arachnoid Membrane - Subarachnoid Space ---- Lumbar Puncture Spinal Anesthesia Pia Mater Spinalis - Denticulate Ligament ----- Cordotomy - Filum Terminale
Meninges of the spinal cord • Dura mater • Arachnoid membrane • Pia mater Denticulate ligament - specilization of the pia mater - landmark for cordotomy
Meninges of the spinal cord
Meninges of the spinal cord
Lumbar Puncture – lumbar (terminal) cistern
Spinal Cord Vascular Supply Arterial Supply - Spinal Arteries Anterior (1) & Posterior (2) Spinal Artery from Vertebral artery - Radicular Arteries ----- Segmental arteries from Vertebral, Ascending Cervical, Intercostal and Lumbar Artery Venous Drainage - Longitudinal & Radicular Veins to Intervertebral veins ---- to Internal Vertebral Venous Plexus to external vertebral venous plexus ---- to segmental veins
5. Adamkiwicz artery anterior spinal artery segmental arteries
- Spinal cord labelled
- The spinal nerves
- Exercise 15 spinal cord and spinal nerves
- Sensory pathways
- Components of the reflex arc
- Back hurts
- Spinal cord nerve anatomy
- Ventral white commissure
- Spinal nerves
- Anterior median fissure
- Parts of a reflex arc
- Objectives of nervous system
- Spinal cord
- Spinal cord denticulate ligament
- Nervous sysytem
- Causes of spinal cord compression
- Spinal cord tumors
- Pons function
- Ventral root