Spinal Cord/Brain Stem

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Spinal Cord

Starts at foramen magnum and run to 2nd lumbar vertebrae

31

How many pairs of spinal nerves are there?

True Spinal Nerve

This is located at joining of anterior and posterior roots & right before the point where dorsal root rami comes off spinal nerve

Neck and Head

Spinal cord innervated entire body except

Afferent Nerves

Nerves take information back to spinal cord (via posterior horn)

Efferent Nerves

Nerves take information away from spinal cord (via anterior horn)

Conus Medullaris

The area where the spinal cord ends is called?

Filum Terminale

Pia mater that extends off conus medullris and attached to sacrum. Used to hold down the spinal cord.

Dermatome

Innervation of skin through spinal cord. Pattern normally originates during embryology

Lateral, Posterior, Anterior

what are the 3 funiculi the white matter of the spinal cord are organized into

Gracile Fasciculus

Bundle of axon fibers that carries sensory information from lower extremities back to spinal cord

Cuneate Fasciculus

Nerves that transmit information from upper extremities back to spinal cord.

Anterior White Commisure

Nerve fiber which cross midline of spinal cord carrying pain sensation and motor signals

Brainstem

Part of brain is made up of medulla, pons and midbrain

Peduncles

Cerebellum is connected to brainstem through connections called

Peduncles

Fiber tracts that connect one anatomical structure to another

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