Zygomatic process of temporal bone

Zygomatic process of temporal bone
Zygomatic process shown in red.
Articulation of the mandible. Lateral aspect. (Zygomatic process visible at center.)
Details
Latin	processus zygomaticus ossis temporalis
Identifiers
Dorlands /Elsevier	p_34/12667776
TA
TH	{{#property:P1694}}
TE	{{#property:P1693}}
FMA	{{#property:P1402}}
Anatomical terms of bone [[[d:|edit on Wikidata]]]

The zygomatic process of the temporal bone is a long, arched process projecting from the lower part of the squamous portion of the temporal bone. It articulates with the zygomatic bone.

This process is at first directed lateralward, its two surfaces looking upward and downward; it then appears as if twisted inward upon itself, and runs forward, its surfaces now looking medialward and lateralward.

The superior border is long, thin, and sharp, and serves for the attachment of the temporal fascia.

The inferior border, short, thick, and arched, has attached to it some fibers of the masseter.

Surfaces

The lateral surface is convex and subcutaneous.

The medial surface is concave, and affords attachment to the masseter.

Ends

The anterior end is deeply serrated and articulates with the zygomatic bone.

The posterior end is connected to the squama by two roots, the anterior and posterior roots.

• The posterior root, a prolongation of the upper border, is strongly marked; it runs backward above the external auditory meatus, and is continuous with th.
• The anterior root, continuous with the lower border, is short but broad and strong; it is directed medialward and ends in a rounded eminence, the articular tubercle (eminentia articularis).

See also

• Zygomatic arch
• Zygomatic complex fracture

Additional images

• 

  Animation.

• 

  Left temporal bone. Animation.

• 

  Left temporal bone. Outer surface. Showing the zygomatic process projecting to the left side of the bone.

• 

  Right temporal bone. Inferior surface.

• Gray187.png

  Base of skull. Inferior surface.

• 

  Base of skull. Inferior surface.

References

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

External links

• Anatomy diagram: 34257.000-1 at Roche Lexicon - illustrated navigator, Elsevier