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Spinous process of cervical vertebra ...

Other Terms: Processus spinosus, Processus spinosus vertebrae

Description

The spinous process of the axis is the thickest of the spines of the cervical vertebral column. It is vertically deeper than the other spines having a grooved caudal surface. Its apex is notched to form a bifid dorsal tip. This strong process functions as an attachment surface for many epaxial muscles.

Etymology

Spinous refers to spine, from the Latin spina meaning a thorn. The spines of the vertebrae formed the most palpable elements in this chain of bones leading to, as early as the 14th Century, the name spinal column or column of thorns. Since the spinal or vertebral column is a column of support, the term spine took on the secondary meaning of a column of support.

Latin

Processus spinosus vertebrae

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