Quiz 4 Flashcards
Anterior
Towards front
Posterior
Towards the rear
Superior
Higher
Inferior
Lower
Proximal
Closer to the point of attachment with the torso
Distal
Farther from the body
Great radicular artery of Adamkiewicz
Artery arising from left side, major blood supply to lumbar and sacral cord
White matter is thicker at
Cervical levels
Bifurcated axons 1st branch Carrie’s info
From the periphery
Bifurcated axons 2nd branch Carrie’s info through
The dorsal nerve filaments
Gray matter more concentrated in
Lumbosacral cords
Red nucleus is found in which pathways
Lateral corticospinal, rubrospinal
lateral cortico-spinal tract crosses over at
pyramids (medulla)
lateral corticospinal tract connects w/ lower motor neurons at
ventral horn
lateral corticospinal tract fx
limb muscles (volunt. movement)
rubrospinal tract crosses over at
ventral tegmentral decussation
rubrospinal tract connects w/ lower motor neurons at
ventral horn or intermediate zone cervical enlargement
rubrospinal tract fx
flexor muscles (trunk) volunt. movement limb muscles
anterior corticospinal tract crosses over at
spinal cord @ ventral column
anterior corticospinal connects w/ lower motor neurons at
intermediate zone cervical thoracic areas
anterior corticospinal tract fx
axial muscles proximal (volunt. movement)
pre central gyrus
primary motor cortex, volunt. mvments
post central gyrus
primary somatosensory cortex
