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Cervical spinal nerve roots C1-C7
correspond with upper aspects of
vertebral bodies. Sensation of C7
nerve is for the

middle finger.

Bone notch at the base of the neck is C7.
C8 and lower spinal nerve roots
leave below the corresponding
vertebral body.
Sensation of T4 spinal nerve
is approximately level with the

nipple line.

Sensation of T6 spinal nerve root
is approximately level with the
bottom of the sternum.
Sensation of T10 spinal nerve root
is approximately level with the abdomen.
Sensation of T12 spinal nerve root is
approximately level with the

pubic bone.
The spinal cord ends approximately
between L1 and L2!
Sacral cord segments (S1-S5 "Cauda Equina")
are level with T12-L1 Vertebrae!
The

sensations

of lumbar nerves are over the legs!!
THE SACRAL VERTEBRAE ARE FUSED TO MAKE UP THE SACRUM.
THE COCCYGEAL VERTEBRAE ARE FUSED TO
MAKE THE COCCYX OR "TAIL BONE".
SENSATION OF S3, S4, AND S5 NERVES IS THE PERINEAL

(GENITAL)

AREA!!