Medial portion of M. Temporalis and its potential involvement in facial pain

Ybarra, Miguel A. Schön; Bauer, Brent A.

doi:10.1002/1098-2353(200101)14:1<25::aid-ca1004>3.0.co;2-q

Cited by 14 publications

(5 citation statements)

References 11 publications

(9 reference statements)

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“…The sphenomandibularis is considered by some authors to be an independent muscle in humans (Dunn et al, 1996), while others consider it to be the deep bundle of the temporalis (Türp et al, 1997;Shimokawa et al, 1998;Schön-Ybarra and Bauer, 2001;Geers et al, 2005;Sedlmayr et al, 2009). In our five chimpanzees, we were able to identify a clearly differentiated sphenomandibularis separate from the deep temporalis.…”

Section: Discussionsupporting

confidence: 47%

“…Some authors make a distinction between the sphenomandibularis and the temporalis muscles in humans and consider the sphenomandibularis to be a separate muscle arising from the maxillary surface of the sphenoid bone and inserting on the temporal crest of the mandible (Dunn et al, 1996). Others, however, consider the sphenomandibularis to be a part of the temporalis, without its own specific vascularization and innervation (Türp et al, 1997;Shimokawa et al, 1998;Schön-Ybarra and Bauer, 2001;Geers et al, 2005;Sedlmayr et al, 2009). In non-human primates, such as the Macaca mulatta, the sphenomandibularis has been described as part of the deep temporalis (Skinner and Aziz, 2003).…”

Section: Introductionmentioning

confidence: 99%

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Expression of myosin heavy chain isoforms mRNA transcripts in the temporalis muscle of common chimpanzees ( Pan troglodytes )

Ciurana

Artells

Muñoz

et al. 2017

Annals of Anatomy - Anatomischer Anzeiger

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Section: Discussionsupporting

confidence: 47%

Section: Introductionmentioning

confidence: 99%

Expression of myosin heavy chain isoforms mRNA transcripts in the temporalis muscle of common chimpanzees ( Pan troglodytes )

Ciurana

Artells

Muñoz

et al. 2017

Annals of Anatomy - Anatomischer Anzeiger

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“…In the classical literature, the term 'sphenoidal tubercle' can be found repeatedly in reference to the bony structure described in this article (Rouvière & Delmas; Testut & Latarjet). Other clinical studies refer to the same bony structure as the infratemporal spine (Schön Ybarra & Bauer;Zenker, 1954;Zenker, 1955).…”

Section: Discussionmentioning

confidence: 96%

“…Also, the description of the current temporary muscle dissections have demonstrated the presence of a deep temporal fascicle, inserted in the infratemporal spine (Geers et al;Palomari et al;Schön Ybarra & Bauer;Sedlmayr et al, 2009). Several authors have linked this with the possible pathogenesis of the trigeminal neuralgia, originating in the maxillary division, by compression in the vicinity of the round foramen (Fuentes et al; Schön Ybarra & Bauer).…”

Section: Discussionmentioning

confidence: 99%

“…Testut & Latarjet describes it as the most anterior portion of the infratemporal crest, often as an accentuated eminence, where temporal muscle fascicles would be attached. Other authors coined the term 'infratemporal spine' to describe the same structure (Zenker, 1954;Zenker, 1955;Schön Ybarra & Bauer, 2001). This element has become important again because it has been described as the origin of the deep portion of the temporal muscle, known in the literature as the sphenomandibular fascicle (Dunn et al, 1996).…”

Section: Introductionmentioning

confidence: 99%

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Frequency and Characterization of the Infratemporal Spine in a Sample of Chilean Human Skulls

et al. 2016

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CÁCERES, F.; PEDEMONTE, M. E.; CERDA, V. & SOTO, R.Frequency and characterization of the infratemporal spine in a sample of Chilean human skulls. Int. J. Morphol., 34(4):1414Morphol., 34(4): -1418Morphol., 34(4): , 2016. SUMMARY:The infratemporal spine, or sphenoidal tubercle, is a bony structure described in both classical anatomical literature and contemporary literature. However, the available literature does not mention the specific anatomical characteristics or the distribution of this bony element in the population. The aim of this study was to define this structure, identify its presence, and identify its morphology in a sample of Chilean human skulls. Fifty-seven dry skulls, obtained from the morphology unit at Universidad de los Andes, were used. The great wings of the sphenoid bone on both sides of the skull were evaluated in search of the infratemporal spine. These spines were classified according to their morphological characteristics of either laminar, pyramidal, or truncated pyramidal, as they related to the infratemporal crest and as they related to the pterygoid process. The presence of the infratemporal spine was found in 100 % of the studied skulls, unilaterally or bilaterally. The most common morphology was found to be laminar (40 %), followed by pyramidal (35 %), and, finally, truncated pyramidal (24 %). The majority (73 %) of these infratemporal spines was closely associated with the pterigoyd process with a complete or partial relation, with fewer (34 %) being associated with the infratemporal crest.

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The human temporalis muscle: Superficial, deep, and zygomatic parts comprise one structural unit

Sedlmayr¹,

Kirsch²,

Wisco³

2009

Clinical Anatomy

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The structure of the temporalis muscle was examined in detail from cadaveric specimens (32 specimens from 16 subjects: 5 males, average age 80.6 years; 11 females, average age 88.6 years) and Computerized Tomography (CT) and T1-weighted Magnetic Resonance (MR) images from normal clinical patients (10 females: average age 45.0 years). Three parts of the muscle were clearly delineated in all cadaveric specimens: (1) the classically recognized superficial part, (2) a zygomatic part, and (3) a complex deep part. In one female specimen, the superficial temporalis demonstrated extensive insertions into the zygomatic process and temporomandibular joint. The zygomatic temporalis originates from the zygomatic arch to insert into the superficial part of the temporalis as it inserts into the lateral surface of the coronoid process. In all specimens, the deep temporalis contained muscle bundles that originated from various crests along the anterior surface of the temporal fossa and inserted into the internal aspect of the coronoid process and retromolar triangle, interdigitating with the buccinator, mylohyoid, and superior constrictor muscles. The confluence of muscle fibers into the buccinator muscle was confirmed in all CT/MRI images. The deep and zygomatic parts described were regarded as accessory muscle bellies previously, but are demonstrably part of the temporalis muscle as a whole.

show abstract

Medial portion of M. Temporalis and its potential involvement in facial pain

Cited by 14 publications

References 11 publications

Expression of myosin heavy chain isoforms mRNA transcripts in the temporalis muscle of common chimpanzees ( Pan troglodytes )

Expression of myosin heavy chain isoforms mRNA transcripts in the temporalis muscle of common chimpanzees ( Pan troglodytes )

Frequency and Characterization of the Infratemporal Spine in a Sample of Chilean Human Skulls

The human temporalis muscle: Superficial, deep, and zygomatic parts comprise one structural unit

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