Spinal Cord By Michael J. Harman . Meninges Meninges: Pia Mater Thin inner membrane covering brain and spinal cord.

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Presentation transcript:

Spinal Cord By Michael J. Harman 

Meninges

Meninges: Pia Mater Thin inner membrane covering brain and spinal cord

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

Meninges: Dura mater Tough 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 medullaris End of the spinal cord

Cauda equina From the conus medullaris down

Filum terminale Extends from end of conus medullaris and 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