Spinal Cord

By

Michael J. Harman

Meninges

Meninges: Pia MaterThin inner membrane covering brain and spinal cord

Meninges: Arachnoid materWeb-like membrane located between the pia and dura mater

Meninges: Dura materTough outermost layer of meninges

Anterior median fissure

Posterior median sulcus

Central canal

Dorsal root

Dorsal root ganglion

Ventral root

Spinal nerve

Gray matter

Gray commissure

Posterior horn

Lateral horn

Anterior horn

White matter

Anterior column

Lateral column

Posterior column

Conus medullarisEnd of the spinal cord

Cauda equinaFrom the conus medullaris down

Filum terminaleExtends from end of conus medullarisand attaches to the coccyx

Sympathetic chain ganglion

Spinal nerves

Cervical nerves (8)

Thoracic nerves (12)

Lumbar nerves (5)

Sacral nerves (5)

Coccygeal nerve (1)

Intercostal nerves

Cervical plexus

                   

Brachial plexus

Axillary nerve

Radial nerve

Ulnar nerve

Median nerve

Lumbosacral plexus

Lumbar plexus

Femoral nerve

Obturator nerve

Sacral plexus

                   

Sciatic nerve

Tibial nerve