Cervical enlargement

Cervical enlargement
Cervical enlargement
Gray663.png
Diagrams of the medulla spinalis. (Cervical enlargement labeled at upper right.)
Latin intumescentia cervicalis
Gray's subject #185 752

The cervical enlargement corresponds with the attachments of the large nerves which supply the upper limbs.

It extends from about the third cervical to the second thoracic vertebra, its maximum circumference (about 38 mm.) being on a level with the attachment of the sixth pair of cervical nerves.

The reason behind the enlargement of the cervical region is because of the increased neural input and output to the upper limbs.

An analogous region in the lower limbs occurs at the lumbar enlargement.

External links

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.

v · d · eAnatomy of torso (primarily): the spinal cord (TA 14.1.02, GA 9.749)
External, dorsal
Posterior median sulcus · Posterolateral sulcus
Grey matter/
Rexed laminae
VII: Lateral horn
VIII–IX: Anterior horn
X: Other
Central gelatinous substance · Gray commissure
Central canal
White matter
somatic/
ascending
(blue)

Posterior/PCML: touch: Gracile · Cuneate

Lateral: proprioception: Spinocerebellar (Dorsal, Ventral) · pain/temp: Spinothalamic (Lateral, Anterior) · Posterolateral (Lissauer) · Spinotectal

Spinoreticular tract · Spino-olivary tract
motor/
descending
(red)
both
External, ventral
Anterior median fissure · Anterolateral sulcus
External, general

M: CNS

anat(n/s/m/p/4/e/b/d/c/a/f/l/g)/phys/devp

noco(m/d/e/h/v/s)/cong/tumr, sysi/epon, injr

proc, drug(N1A/2AB/C/3/4/7A/B/C/D)



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