Anatomy spinal cord and spinal nerves

posterior median sulcus

anterior median fissure

cervical enlargement

lumbar enlargement

conus medullaris

where the spinal cord ends

central canal

epidural space

dura mater

subdural space

arachnoid mater

subarachnoid space

pia mater

denticulate ligaments

filum terminale

medial nerve that runs down spinal cord

dorsal root

dorsal root ganglion

ventral root

spinal nerve

cauda equina

where it branches out

cervical plexus

C1-C5

brachial plexus

C5-T1

lumbar plexus

T12-L4

sacral plexus

L4-S4

phrenic nerve

wish-bone shaped

superior trunk

C5 + C6

inferior trunk

C8 + T1

lateral cord

branches from superior and middle trunk

medial cord

branches from inferior trunk

posterior cord

branches from all 3 trunks

musculo-cutaneous nerve

median nerve

ulnar nerve

axillary nerve

radial nerve

subscapular nerve

branches off posterior cord

genitofemoral nerve

branches from L1 and L2

lateral femoral cutaneous nerve

comes from L2 and L3

femoral nerve

comes from L2, L3 and L4

saphenous nerve

obturator nerve

posterior femoral cutaneous nerve

sciatic nerve

tibial nerve

common fibular nerve