Corpus: Temporal muscle: Unterschied zwischen den Versionen

Aktuelle Version vom 6. November 2024, 14:47 Uhr

Definition

The temporal muscle is a skeletal muscle that is part of the superficial muscles involved in mastication (chewing).

Origin

The temporal muscle originates over a large area on the outer surface of the temporal bone, specifically from the temporal fascia between the inferior temporal line and the infratemporal crest. It fills both the temporal and infratemporal fossae. The anterior portions of the muscle arise from the zygomatic and frontal bones as well as the greater wing of the sphenoid bone. The posterior portions originate from the parietal bone near the lambdoid suture. Additionally, a deep medial section of the muscle originates at the base of the skull between the infratemporal crest and the entrance to the pterygopalatine fossa. The entire muscle is covered by a strong fascia (temporal fascia), which also serves as part of the muscle's origin.

Insertion

The extensive muscle fibers of the temporal muscle converge into a strong tendon that attaches to the coronoid process and the temporal crest of the mandible. Additionally, some tendon fibers radiate into the fascia of the buccinator muscle, known as the buccotemporal fascia.

Innervation

The temporal muscle is innervated by the deep temporal nerves, which arise from the mandibular nerve (cranial nerve V3).

Function

The temporal muscle, along with the masseter and medial pterygoid muscles, plays a key role in closing the jaw (adduction), contributing to mouth closure. The deep medial sections of the temporal muscle help to pull the lower jaw forward (protrusion), while the posterior sections are responsible for pulling it backward (retrusion). The temporal muscle is the strongest individual muscle involved in jaw closure.

When the temporal muscle contracts unilaterally, it causes the mandibular head on the opposite side to shift forward, which assists in the grinding movement of the jaw during chewing.

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-{{Raw}}
 ==Definition==
-The '''temporalis muscle''' is a skeletal muscle that is part of the superficial muscles of mastication.<dcembed ratio="16x9"><dcEmbedUrl src="https://www.doccheck.com/de/detail/photos/43022-musculus-temporalis"></dcEmbedUrl>
+The '''temporal muscle''' is a [[Corpus:Muscle|skeletal muscle]] that is part of the superficial [[Corpus:Muscle|muscles]] involved in [[Corpus:Mastication|mastication]] (chewing).<dcembed ratio="16x9"><dcEmbedUrl src="https://www.doccheck.com/de/detail/photos/43022-musculus-temporalis"></dcEmbedUrl>
 <dcEmbedUrl src="https://www.doccheck.com/de/detail/photos/43023-musculus-temporalis"></dcEmbedUrl></dcembed>
 ==Origin==
-The temporalis muscle originates over a large area from the outer side of the temporal facies of the temporal bone scale between the inferior temporal line and the infratemporal crest. It fills the temporal and infratemporal fossa. The anterior sections originate from the zygomatic and frontal bones and the greater sphenoid bone (ala major ossis sphenoidalis). The dorsal sections originate from the parietal bone near the lambdoid sutura. Another deep medial muscle section originates at the base of the skull between the infratemporal crest and the entrance to the pterygopalatine fossa.
+The temporal muscle originates over a large area on the outer surface of the [[Corpus:Temporal bone|temporal bone]], specifically from the [[Corpus:Temporal fascia|temporal fascia]] between the inferior temporal line and the [[Corpus:Infratemporal crest|infratemporal crest]]. It fills both the temporal and [[Corpus:Infratemporal fossae|infratemporal fossae]]. The anterior portions of the muscle arise from the [[Corpus:Zygomatic bone|zygomatic]] and [[Corpus:Frontal bone|frontal bones]] as well as the greater wing of the [[Corpus:Sphenoid bone|sphenoid bone]]. The posterior portions originate from the [[Corpus:Parietal bone|parietal bone]] near the lambdoid suture. Additionally, a deep medial section of the muscle originates at the base of the [[Corpus:Skull|skull]] between the infratemporal crest and the entrance to the [[Corpus:Pterygopalatine fossa|pterygopalatine fossa]]. The entire muscle is covered by a strong fascia (temporal fascia), which also serves as part of the muscle's origin.
-The muscle is covered by a strong fascia (fascia temporalis profunda), which also serves as the muscle origin.
+==Insertion==
+The extensive muscle fibers of the temporal muscle converge into a strong [[Corpus:Tendon|tendon]] that attaches to the [[Corpus:Coronoid process|coronoid process]] and the temporal crest of the [[Corpus:Mandible|mandible]]. Additionally, some tendon fibers radiate into the fascia of the [[Corpus:Buccinator muscle|buccinator muscle]], known as the [[Corpus:Buccotemporal fascia|buccotemporal fascia]].
-==Attachment==
-The extensive muscle fibres of the temporalis muscle bundle together to form a strong tendon that attaches to the coronoid process and the temporal crest of the mandible. Furthermore, tendon bundles radiate into the fascia of the buccinator muscle (fascia buccotemporalis).
 <dcembed><dcembedurlskatchfab src="https://sketchfab.com/3d-models/71aa377d5b0947d3a2e76f01a07013b7" ui_controls="1"></dcembedurlskatchfab></dcembed>
 ==Innervation==
-The temporalis muscle is innervated by the nervi temporales profundi, which arise from the mandibular nerve (V3).
+The temporal muscle is innervated by the [[Corpus:Deep temporal nerves|deep temporal nerves]], which arise from the [[Corpus:Mandibular nerve|mandibular nerve]] (cranial nerve V3).
 ==Function==
-The temporalis muscle, together with the masseter muscle and the medial pterygoid muscle, is responsible for closing the jaw (adduction). The temporalis muscle is therefore also involved in closing the mouth. In addition, the deep medial sections pull the lower jaw forwards (protrusion), while the posterior sections pull it dorsally (retrusion). Individually, the temporalis muscle is the strongest closing muscle of the jaw.
+The temporal muscle, along with the [[Corpus:Masseter muscle|masseter]] and [[Corpus:Medial pterygoid muscle|medial pterygoid muscles]], plays a key role in closing the [[Corpus:Jaw|jaw]] (adduction), contributing to [[Corpus:Mouth|mouth]] closure. The deep medial sections of the temporal muscle help to pull the lower jaw forward (protrusion), while the posterior sections are responsible for pulling it backward (retrusion). The temporal muscle is the strongest individual muscle involved in jaw closure.
-When contracted on one side, the caput mandibulae of the balance side shifts ventrally, which supports the grinding movement.
-<dcembed><dcembedurlvideo src="https://www.doccheck.com/de/detail/videos/3432-musculus-temporalis"></dcembedurlvideo></dcembed>
+When the temporal muscle contracts unilaterally, it causes the mandibular head on the opposite side to shift forward, which assists in the grinding movement of the jaw during chewing.<dcembed><dcembedurlvideo src="https://www.doccheck.com/de/detail/videos/3432-musculus-temporalis"></dcembedurlvideo></dcembed>
 [[Kategorie:Corpus]]
 [[Kategorie:Head]]
 [[Kategorie:Muscle]]