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nerves
nerves and nerve structures
17
Anatomy
Undergraduate 2
03/15/2014

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Cards

Term
Cervical
Thoracic
Lumbar
Sacaral regions
Definition
The spinal cord is divided into 4 _______, ______, ______, ______ regions.
Term
Cervical Enlargement
Definition
The ______ ______ in the inferior cervical region, where it gives rise to nerves of the upper limbs.
Term
Lumbar Enlargement
Definition
The ______ _____ in the lumbosacral region, where it gives rise to nerves in the pelvic region and lower limbs.
Term
Medullary Cone
Definition
Inferior to the lumbar enlargement, the cord tapers to a point called the _____ _____?
Term
Cauda Equina
Definition
The lumbar enlargement and the medullary cone give off a bundle of nerve roots that occupy the vertebral canal from L2 to S2. This bundle, named _____ _____ for it's resemblance to a horses tail, innervates the pelvic organs and lower limbs.
Term
Meninges
Definition
The spinal cord and the brain are enclosed in three connective tissue coverings called_______.
Term
Dura Mater
Definition
The _____ _____ forma a loose fitting sleeve called the dural sheath around the spinal cord.
Term
Epidural Space
Definition
The space between the dural sheath and vertebral bones, called the _____ _____, is occupied by blood vessels, adipose tissue, and loose connective tissue.
Term
Arachnoid Mater
Definition
The _____ _____ spans the gap between the arachnoid membrane and the pia mater.
Term
Pia Mater
Definition
The _____ _____ is a delicate translucent membrane that closely follows the contours of the spine.
Term
Grey Matter
Definition
The spinal cord has a central core of _____ _____ that looks somewhat butterfly of H-shaped in cross sections.
Term
Posterior (Dorsal) Horns
Anterior (Ventral) Horns
Definition
The core consists of two _____ _____, _____ _____which extend toward the postlateral surfaces of the cord.
Term
Central Canal
Definition
In the middle of the spinal column is the _____ _____, which is collapsed in most adults is lined with ependymal cells and filled with CSF.
Term
Lateral Horn
Definition
The _____ _____ is visible on each side of the gray matter. It contains neurons of the sympathetic nervous system which send their axons out of the cord by way of the anterior root along with the somatic efferent fibers.
Term
White Matter
Definition
The _____ _____ pf the spinal column surrounds the gray matter.
Term
Ascending Tracts
Definition
_____ _____ carry sensory information up the spinal cord.
Term
Descending Tracts
Definition
_____ _____ carry motor impulses down the spinal column.
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