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27 Cards in this Set

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prevents hyperextension

covers and connects anterior sides of vertebral bodies

attaches to vertebral bodies and intervertebral discs

In neck, may be torn in whiplash injuries
Anterior Longitudinal Ligament
Prevents hyperflexion

Within the vertebral canal, connects to posterior sides of vertebral bodies
Posterior Longitudinal Ligament
Interconnects tips of all spinous processes.

Continuation is Ligamentum Nuchae
Supraspinous Ligament
Extra-thick, expanded portion of supraspinous ligament in neck.

From spine of C7, extends both posteriorly and upward. Runs from cervical spines to base of skull, expanding posteriorly to external occipital protuberance.
Serves as central septum between right & left deep back muscle layers of neck
Ligamentum Nuchae
Span between central portions of adjacent spinous processes
Interspinous Ligaments
Strongest ligament between adjacent vertebrae

Paired, individual ligaments that connect adjacent vertebral lamina

Located within vertebral canal-deep to (anterior side of) intervertebral facet joints, at posterior border of intervertebral foramen.
Has numerous elastic fibers-allow for stretch of ligament during flexion of vertbreall column
Ligamentum Flavum
Area between bone of vertebral canal and dura mater.
Filled with fat.
Contains extensive venous plexus.
Epidural Space
Outermost layer of meninges, strongest layer.

Forms continuous tube around spinal cord. Attaches at foramen magnum down to S2, in sacrum thru sacral hiatus and attaces to coccyx.

Lateral extensions of this surround exiting spinal nerves. Attach to bony margins of intervertebral foramen. Becomes continuous with epineurium. Serves to anchor & stabilize spinal cord within vertebral canal
Dura Mater
Thin cord narrowed down from dura mater
Coccygeal ligament
Inside of dura mater.
Separated from from next deeper meningeal layer by subarachnoid space.

Extends laterally around spinal nerves-blends with connective tissue sheath of nerve as it exits vertebral column.
Arachnoid Mater
Potential space between arachnoid mater & dura mater.

Usually only contains thin layer of lubricating fluid.

If dura damaged, space may fill with blood
Subdural Space
Filled with cerebrospinal fluid.
Spanned by arachnoid tuberculae
Subarchnoid Space
Serves as shock absorbing cushion
Cerebrospinal fluid
Thin weblike filaments
arachnoid trabeculae
Innermost covering of spinal cord
Pia mater
Tooth-like lateral extensions of pia mater (21 pairs)

Located on lateral sides of spinal cord, between dorsal and ventral nerve rootlest.
Extend from pia, thru arachnoid, and attach to dura mater.
Serve to anchor lateral sides of spinal cord.
denticulate ligaments
Thin cord of pia that extends downward from inferior end of spinal cord.

Terminates by attaching to coccygeal ligament
filum terminale
In median fissure of cord on anterior (ventral) side

In pia mater, supplies spinal cord
anterior spinal artery
Along posterior (dorsal) side of cord (2)

In pia mater, supplies spinal cord
posterior spinal arteries
Arterial inpurs to anterior & posterior spinal arteries
vertebral artery & segmental arteries
Begins at foramen magnum of skull.

Continuation of brain stem.
Spinal Cord
conical tapered termination of spinal cord
conus medullaris
L1-L2 vertebral level
End of spinal cord
Done between L3-L4 or L4-L5
Spinal tap for cerebrospinal fluid
Large mass of closely-spaced nerve rootlets in subarachnoid space below inferior termination of spinal cord
cauda equina
Area of spinal cord enlargement
1. Spinal levels C5-T1
2. Ventral rami from brachial plexus (upper limb)
cervical enlargement
Area of spinal cord enlargement
1. Spinal levels L2 to S3
2. Ventral rami from lumbar and sacral plexuses (lower limb)
lumbosacral enlargement