From Wikipedia, the free encyclopedia
Depression in the temporal bone that articulates with the mandible
The mandibular fossa , also known as the glenoid fossa in some dental literature, is the depression in the
temporal bone that articulates with the
mandible .
Structure
In the
temporal bone , the mandibular fossa is bounded
anteriorly by the
articular tubercle and
posteriorly by the tympanic portion of the temporal bone, which separates it from the
external acoustic meatus . The fossa is divided into two parts by a narrow slit, the
petrotympanic fissure (Glaserian fissure). It is concave in shape to receive the
condyloid process of the
mandible .
[1]
Development
The mandibular fossa develops from condylar cartilage. This may be stimulated by
SOX9 or
ALK2 , as has been seen in
mouse models .
[2]
Function
The
condyloid process of the
mandible articulates with the
temporal bone of the
skull at the mandibular fossa.
[3]
[4]
Clinical significance
Problems with
morphogenesis during embryonic development can lead to the mandibular fossa not forming.
[2] This may be caused by
mutations to
SOX9 or
ALK2 .
[2]
If the mandibular fossa is very shallow, this can cause problems with the strength of the
temporomandibular joint .
[5] This can lead to easy
subluxation of the joint and
trismus (lock jaw).
[5]
Deformation of the mandibular fossa, often part of
temporomandibular dysplasia , causes similar problems in
dogs .
[6]
[7] This may resolve spontaneously, or require
surgery .
[7]
History
The mandibular fossa is also known as the glenoid fossa in some dental literature.
[1]
[8]
Other animals
The mandibular fossa is a feature of the skulls of various other animals, including
dogs .
[6]
See also
References
This article incorporates text in the
public domain from
page 140 of the 20th edition of
Gray's Anatomy (1918)
^
a
b Mehta, Noshir R.; Scrivani, Steven J.; Maciewicz, Raymond (2008).
"25 - Dental and Facial Pain" . Raj's Practical Management of Pain (4th ed.).
Mosby . pp. 505–527.
doi :
10.1016/B978-032304184-3.50028-5 .
ISBN
978-0-323-04184-3 .
^
a
b
c Hinton, Robert J.; Jing, Junjun; Feng, Jian Q. (2015).
"Four - Genetic Influences on Temporomandibular Joint Development and Growth" . Current Topics in Developmental Biology . Vol. 115.
Elsevier . pp. 85–109.
doi :
10.1016/bs.ctdb.2015.07.008 .
ISBN
978-0-12-408141-3 .
ISSN
0070-2153 .
PMID
26589922 .
^ Lantz, Gary C.; Verstraete, Frank J. M. (2012).
"33 - Fractures and luxations involving the temporomandibular joint" . Oral and Maxillofacial Surgery in Dogs and Cats .
Saunders . pp. 321–332.
doi :
10.1016/B978-0-7020-4618-6.00033-6 .
ISBN
978-0-7020-4618-6 .
^ Willard, V. P.; Zhang, L.; Athanasiou, K. A. (2011).
"5.517 - Tissue Engineering of the Temporomandibular Joint" . Comprehensive Biomaterials . Vol. 5.
Elsevier Science . pp. 221–235.
doi :
10.1016/B978-0-08-055294-1.00250-6 .
ISBN
978-0-08-055294-1 .
^
a
b Lantz, Gary C. (2012).
"55 - Temporomandibular joint dysplasia" . Oral and Maxillofacial Surgery in Dogs and Cats .
Saunders . pp. 531–537.
doi :
10.1016/B978-0-7020-4618-6.00055-5 .
ISBN
978-0-7020-4618-6 .
^
a
b Jerram, Richard M. (2006-01-01).
"97 - Fractures and Dislocations of the Mandible" . Saunders Manual of Small Animal Practice (3rd ed.).
Saunders . pp. 1037–1042.
doi :
10.1016/B0-72-160422-6/50099-1 .
ISBN
978-0-7216-0422-0 . {{
cite book }}
: CS1 maint: date and year (
link )
^
a
b Kealy, J. Kevin; McAllister, Hester; Graham, John P. (2011-01-01).
"5 - The Skull and Vertebral Column" . Diagnostic Radiology and Ultrasonography of the Dog and Cat (5th ed.).
Saunders . pp. 447–541.
ISBN
978-1-4377-0150-0 . {{
cite book }}
: CS1 maint: date and year (
link )
^ Groell, R; Fleischmann, B (1999-03-01).
"The pneumatic spaces of the temporal bone: relationship to the temporomandibular joint" . Dentomaxillofacial Radiology . 28 (2): 69–72.
doi :
10.1038/sj/dmfr/4600414 .
ISSN
0250-832X .
PMID
10522194 – via DMFR.
External links