Spinal Cord Flashcards
What is the name of the cone-shaped end of the spinal cord?
conus medullaris
What part of the spinal cord extends down to the coccyx?
filum terminale
What part of the spinal cord extends down to S2?
dural sheath
Within the spinal cord, where is the epidural space located?
between the dura and the interior surface of the neural canal
Where do the ventral and dorsal roots join together, forming a spinal nerve?
intervertebral foramen
The dorsal root carries ______ information.
afferent
The ventral root carries ______ information.
efferent
The lumbar and sacral spinal nerve roots below the conus medullaris form the _____.
cauda equina
The ______ and the ______ partially divide the spinal cord into right and left sides.
anterior median fissure / posterior median sulcus
What does grey matter consist of?
- cell bodies of neurons
- neuroglia
- unmyelinated axons
- dendrites of interneurons and motor neurons
The central canal is continuous with the ______ system of the brain.
ventricular
The ventral horn contains the cell bodies of ______.
lower motor neurons
What is the collective term for the brainstem and spinal cord?
neuraxis
What does white matter consist of?
- myelinated and unmyelinated axons of sensory neurons (mostly myelinated)
- interneurons
- motor neurons
What is a tract?
bundled axons in the CNS
