Temporal styloid process

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Styloid process (temporal)
Styloid process of temporal bone - lateral view04.png
Right side of the skull. Styloid process shown in red
Processus styloideus (close) with label.png
Right temporal bone and mandible (styloid process labeled at bottom)
Details
Latin Processus styloideus ossis temporalis
Identifiers
Gray's p.145
Dorlands
/Elsevier
p_34/12667662
TA A02.1.06.047
FMA FMA:52877
Anatomical terms of bone

The styloid process is a pointed piece of bone that extends down from the human skull, just below the ear.

Structure[edit]

The styloid process is a slender pointed piece of bone just below the ear. It projects down and forward from the inferior surface of the temporal bone, and serves as an anchor point for several muscles associated with the tongue and larynx.

The stylohyoid ligament extends from the apex of the process to the lesser cornu of the hyoid bone, and in some instances is partially, in others completely, ossified.

A small percentage of the population will suffer from an elongation of the styloid process and stylohyoid ligament calcification. This condition is also known as Eagle syndrome. The tissues in the throat rub on the styloid process during the act of swallowing with resulting pain along the glossopharyngeal nerve. There is also pain upon turning the head or extending the tongue. Other symptoms may include voice alteration, cough, dizziness, migraines, occipital neuralgia, pain in teeth and jaw and sinusitis or bloodshot eyes.

Development[edit]

The styloid process arises from endochondral ossification of the cartilage from the second branchial arch.

Additional images[edit]

References[edit]

This article incorporates text from a public domain edition of Gray's Anatomy.

External links[edit]