spinal cord Flashcards
the enlargements of the spinal cord
Cervical enlargement C4-T1
Lumbar enlargement T11- S1
Conus medullaris
most superior
ending of the spinal cord (nerves still continue)
The conical shape of the cord at distal end- L2
Cauda equina
Caude = tail Equina = horse
spinal roots that descend from end of spinal cord in the vertebral canal
Filum terminale
terminal end of the nerves from spinal cord
connective tissue continuous w pia of SC. Extends to attach and secure to coccyx
Afferent (sensory input) via
dorsal roots
Efferent (motor output) via
ventral roots
spinal cord arteries
Two types of arteries
Longitudinal Aa
Segmental Aa
Anterior Spinal Arteries
Posterior spinal Aa:
spinal cord veins
Longitudinal veins