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==Definition== | ==Definition== | ||
The '''thyrohyoid muscle''' is a small, quadrangular skeletal muscle that is part of the infrahyal musculature (lower hyoid muscles).<dcembed ratio="16x9"><dcEmbedUrl src="https://www.doccheck.com/de/detail/photos/43061-musculus-thyrohyoideus"></dcEmbedUrl> | The '''thyrohyoid muscle''' is a small, quadrangular [[Corpus:skeletal muscle|skeletal muscle]] that is part of the infrahyal musculature ([[Corpus:lower hyoid muscles|lower hyoid muscles]]).<dcembed ratio="16x9"><dcEmbedUrl src="https://www.doccheck.com/de/detail/photos/43061-musculus-thyrohyoideus"></dcEmbedUrl> | ||
<dcEmbedUrl src="https://www.doccheck.com/de/detail/photos/43060-musculus-thyrohyoideus"></dcEmbedUrl></dcembed> | <dcEmbedUrl src="https://www.doccheck.com/de/detail/photos/43060-musculus-thyrohyoideus"></dcEmbedUrl></dcembed> | ||
==Progression== | ==Progression== | ||
===Origin=== | ===Origin=== | ||
The origin of the thyrohyoid muscle lies at the linea obliqua of the thyroid cartilage (cartilago thyroidea). It appears as an extension of the sternothyroid muscle in the direction of the hyoid bone. | The origin of the thyrohyoid muscle lies at the linea obliqua of the [[Corpus:Thyroid cartilage|thyroid cartilage]] (cartilago thyroidea). It appears as an extension of the [[Corpus:sternothyroid muscle|sternothyroid bone]] in the direction of the [[Corpus:hyoid bone|hyoid bone]]. | ||
===Attachment=== | ===Attachment=== | ||
The insertion of the thyrohyoid muscle lies at the lower edge of the base of the greater cornua of the hyoid bone, just lateral and distal to the insertion of the omohyoid muscle, whose course it accompanies.<dcembed ratio="16x9" caption="3D model of the larynx and thyroid gland. The thyrohyoid muscle is labeled with the number 22."><dcEmbedUrl src="https://sketchfab.com/3d-models/modell-kehlkopf-und-schilddruse-f294da2a3a42486484595d502a131ea4"></dcEmbedUrl></dcembed> | The insertion of the thyrohyoid muscle lies at the lower edge of the base of the greater cornua of the hyoid bone, just lateral and distal to the insertion of the [[Corpus:omohyoid muscle|omohyoid muscle]], whose course it accompanies.<dcembed ratio="16x9" caption="3D model of the larynx and thyroid gland. The thyrohyoid muscle is labeled with the number 22."><dcEmbedUrl src="https://sketchfab.com/3d-models/modell-kehlkopf-und-schilddruse-f294da2a3a42486484595d502a131ea4"></dcEmbedUrl></dcembed> | ||
== Innervation == | == Innervation == | ||
The thyrohyoid muscle is innervated via the thyrohyoid ramus from the radix superior of the cervical profunda, which is formed from the branches of the cervical plexus (segments: C1-C3). | The thyrohyoid muscle is innervated via the thyrohyoid ramus from the radix superior of the cervical profunda, which is formed from the branches of the [[Corpus:cervical plexus|cervical plexus]] (segments: C1-C3). | ||
==Function== | ==Function== | ||
The thyrohyoid muscle shortens the distance between the hyoid bone and thyroid cartilage, thereby ensuring closure of the larynx. | The thyrohyoid muscle shortens the distance between the hyoid bone and thyroid cartilage, thereby ensuring closure of the [[Corpus:larynx|larynx]]. | ||
<dcembed ratio="16x9"><dcembedurl src="https://www.doccheck.com/de/detail/videos/3700-musculus-thyrohyoideus"></dcembedurl></dcembed> | <dcembed ratio="16x9"><dcembedurl src="https://www.doccheck.com/de/detail/videos/3700-musculus-thyrohyoideus"></dcembedurl></dcembed> | ||
Aktuelle Version vom 24. September 2024, 12:11 Uhr
Definition
The thyrohyoid muscle is a small, quadrangular skeletal muscle that is part of the infrahyal musculature (lower hyoid muscles).
Progression
Origin
The origin of the thyrohyoid muscle lies at the linea obliqua of the thyroid cartilage (cartilago thyroidea). It appears as an extension of the sternothyroid bone in the direction of the hyoid bone.
Attachment
The insertion of the thyrohyoid muscle lies at the lower edge of the base of the greater cornua of the hyoid bone, just lateral and distal to the insertion of the omohyoid muscle, whose course it accompanies.
Innervation
The thyrohyoid muscle is innervated via the thyrohyoid ramus from the radix superior of the cervical profunda, which is formed from the branches of the cervical plexus (segments: C1-C3).
Function
The thyrohyoid muscle shortens the distance between the hyoid bone and thyroid cartilage, thereby ensuring closure of the larynx.