Spinal Cord,cns Support Structures, And Neurons

Front 1

the spinal cord is a cylindrical mass extending from the_______ to the lower border of the ______ lumbar vertebra in the ___________

Back 1

the spinal cord is a cylindrical mass extending from the foramen magnum to the lower border of the 1st lumbar vertebra in the conus medullaris

Front 2

Divided into 30 segments, the spinal consist of:

Back 2

8 cervical,12 thoracic, 5 lumbar, 5 sacral, and a few coccygeal

Front 3

___________of the spinal cord cord contains two anterior (ventral) and two posterior (dorsal) horns united by a gray commissure with central canal

Back 3

central gray matter

Front 4

__________horns contain cell bodies that give rise to efferent (motor) neurons: _________ motor neurons effect muscles and _______motor neurons to muscle spindles

Back 4

anterior
alpha
gamma

Front 5

_______horns contain afferent (sensory) neurons with cell bodies located in the ______

Back 5

dorsal
dorsal root ganglia

Front 6

two enlargements in the spinal cord are:

Back 6

cervical and lumbosacral

Front 7

lateral horn is found in the ______ and upper ______ segments for ________ fibers of the autonomic nervous system

Back 7

thoracic
lumbar
preganglionic

Front 8

Name the ascending tracts in the white matter of the spinal cord:

Back 8

Dorsal columns/medial lemniscus
spinothalamnic
spinocerebellar
spinoreticular