Corpus: Mylohyoid muscle: Unterschied zwischen den Versionen

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''from ancient Greek: μύλη ("myle") - millstone, mill tooth; ὑοειδής ("hyoides") - υ-shaped''


''from ancient Greek: μύλη ("myle") - millstone, mill tooth; ὑοειδής ("hyoides") - υ-shaped''<br>
== Definition ==
''Synonym: mandibular hyoid muscle''
The '''mylohyoid muscle''' is a [[Corpus:skeletal muscle|skeletal muscle]] that is part of the [[Corpus:Suprahyoid musculature|suprahyoid musculature]], forming the muscular foundation of the [[Corpus:floor of the mouth|floor of the mouth]]. It is derived from the first branchial arch.<dcembed ratio="16x9"><dcEmbedUrl src="https://www.doccheck.com/de/detail/photos/43058-musculus-mylohyoideus"></dcEmbedUrl>
 
==Definition==
The '''mylohyoid muscle''' is a skeletal muscle belonging to the suprahyoid musculature that forms the muscular basis of the floor of the mouth. It is a derivative of the 1st gill arch.<dcembed ratio="16x9"><dcEmbedUrl src="https://www.doccheck.com/de/detail/photos/43058-musculus-mylohyoideus"></dcEmbedUrl>
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==Course==
==Course==
The origin of the mylohyoid muscle is the linea mylohyoidea, which is found on the inside of the lower jaw bone (mandible). From its origin, the muscle runs caudally to the hyoid bone (os hyoideum).
The mylohyoid muscle originates from the [[Corpus:Mylohyoid line|mylohyoid line]] (linea mylohyoidea) on the inner surface of the [[Corpus:Mandible|mandible]]. From its origin, the muscle fibers run downward towards the [[Corpus:Hyoid bone|hyoid bone]]. The posterior fibers of the mylohyoid muscle attach directly to the hyoid bone, while the anterior fibers converge with those from the opposite side at the midline connective tissue structure called the [[Corpus:Mylohyoid raphe|mylohyoid raphe]], which extends from the [[Corpus:Chin|chin]] to the hyoid bone.<dcembed><dcembedurlskatchfab src="https://sketchfab.com/3d-models/54d5f07def0b4db882d0f971d39cfb6a" ui_controls="1"></dcembedurlskatchfab></dcembed>
 
The posterior fibres of the mylohyoid muscle attach to the hyoid bone. The rostral fibres meet those of the opposite side in the connective tissue raphe mylohyoidea, which runs from the chin to the hyoid bone.
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==Innervation==
==Innervation==
Innervation is provided by the mylohyoid nerve, a branch from the inferior alveolar nerve of the mandibular nerve.
The mylohyoid muscle is innervated by the [[Corpus:Mylohyoid nerve|mylohyoid nerve]], a branch of the [[Corpus:Inferior alveolar nerve|inferior alveolar nerve]], which is itself a branch of the [[Corpus:Mandibular nerve|mandibular nerve]] (cranial nerve V3).


==Vascular supply==
==Vascular supply==
The muscle is supplied with blood via the mylohyoid ramus of the inferior alveolar artery.
The muscle receives its blood supply from the mylohyoid branch of the [[Corpus:Inferior alveolar artery|inferior alveolar artery]].


==Function==
==Function==
The mylohyoid muscle is involved in the swallowing process by pulling the hyoid bone forwards. It is also involved in opening the jaw and in the grinding movement. As a broad muscle, the mylohyoid muscle forms the floor of the mouth (diaphragm oris).
The mylohyoid muscle plays a key role in the swallowing process by pulling the hyoid bone anteriorly. It also contributes to jaw opening and assists in the grinding movement of the [[Corpus:Jaw|jaw]]. As a broad muscle, the mylohyoid forms the muscular floor of the mouth, also known as the [[Corpus:Diaphragm oris|diaphragm oris]].


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==Etymology==
==Etymology==
The term ''mylohyoid muscle'' describes the topographical course with origin and insertion: the muscle originates at the mandible in the area of the molars (ancient Greek: ''mylai'') and runs to the os hyoideum.
The term "mylohyoid muscle" reflects its anatomical course, indicating both its origin and insertion points. The muscle originates from the mandible in the area of the [[Corpus:Molar (tooth)|molars]] (derived from the ancient Greek word "mylai" meaning molars) and extends to the hyoid bone (os hyoideum).
[[Kategorie:Corpus]]
[[Kategorie:Corpus]]
[[Kategorie:Head]]
[[Kategorie:Head]]
[[Kategorie:Muscle]]
[[Kategorie:Muscle]]

Aktuelle Version vom 17. Oktober 2024, 10:36 Uhr

from ancient Greek: μύλη ("myle") - millstone, mill tooth; ὑοειδής ("hyoides") - υ-shaped

Definition

The mylohyoid muscle is a skeletal muscle that is part of the suprahyoid musculature, forming the muscular foundation of the floor of the mouth. It is derived from the first branchial arch.

Course

The mylohyoid muscle originates from the mylohyoid line (linea mylohyoidea) on the inner surface of the mandible. From its origin, the muscle fibers run downward towards the hyoid bone. The posterior fibers of the mylohyoid muscle attach directly to the hyoid bone, while the anterior fibers converge with those from the opposite side at the midline connective tissue structure called the mylohyoid raphe, which extends from the chin to the hyoid bone.

Innervation

The mylohyoid muscle is innervated by the mylohyoid nerve, a branch of the inferior alveolar nerve, which is itself a branch of the mandibular nerve (cranial nerve V3).

Vascular supply

The muscle receives its blood supply from the mylohyoid branch of the inferior alveolar artery.

Function

The mylohyoid muscle plays a key role in the swallowing process by pulling the hyoid bone anteriorly. It also contributes to jaw opening and assists in the grinding movement of the jaw. As a broad muscle, the mylohyoid forms the muscular floor of the mouth, also known as the diaphragm oris.

Etymology

The term "mylohyoid muscle" reflects its anatomical course, indicating both its origin and insertion points. The muscle originates from the mandible in the area of the molars (derived from the ancient Greek word "mylai" meaning molars) and extends to the hyoid bone (os hyoideum).