Corpus: Rectus posterior minor capitis muscle: Unterschied zwischen den Versionen
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==Definition== | ==Definition== | ||
The '''rectus | The '''rectus posterior minor capitis muscle''' is a [[Corpus:Muscle|skeletal muscle]] located in the [[Corpus:Neck|neck]] and is part of the [[Corpus:Autochthonous back musculature|autochthonous back musculature]]. <dcembed ratio="16x9"><dcEmbedUrl src="https://www.doccheck.com/de/detail/photos/42950-musculus-rectus-capitis-posterior-minor"></dcEmbedUrl> | ||
<dcEmbedUrl src="https://www.doccheck.com/de/detail/photos/42951-musculus-rectus-capitis-posterior-minor"></dcEmbedUrl></dcembed> | <dcEmbedUrl src="https://www.doccheck.com/de/detail/photos/42951-musculus-rectus-capitis-posterior-minor"></dcEmbedUrl></dcembed> | ||
==Course== | ==Course== | ||
The rectus | The rectus posterior minor capitis muscle originates from the posterior tubercle of the [[Corpus:Atlas|atlas]] (the 1st [[Corpus:Cervical vertebra|cervical vertebra]]). It runs straight to attach to the inferior nuchal line of the [[Corpus:Occipital bone|occipital bone]]. | ||
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==Innervation== | ==Innervation== | ||
The muscle is innervated by the medial branches of the posterior rami of the [[Corpus:Spinal nerve|spinal nerves]] from segment C1. The dorsal ramus of the first spinal nerve is also known as the [[Corpus:Suboccipital nerve|suboccipital nerve]]. | The rectus posterior minor capitis muscle is innervated by the medial branches of the posterior rami of the [[Corpus:Spinal nerve|spinal nerves]] from segment C1. The dorsal ramus of the first spinal nerve is also known as the [[Corpus:Suboccipital nerve|suboccipital nerve]]. | ||
==Function== | ==Function== | ||
When the rectus | When the rectus posterior minor capitis muscle contracts on one side, it causes slight tilting and rotation of the [[Head-Cheese-Sign|head]] to the same side. When both sides contract simultaneously, the muscle aids in dorsiflexion of the head. | ||
<dcembed ratio="16x9"><dcembedurl src="https://www.doccheck.com/de/detail/videos/3602-musculus-rectus-capitis-posterior-minor"></dcembedurl></dcembed> | <dcembed ratio="16x9"><dcembedurl src="https://www.doccheck.com/de/detail/videos/3602-musculus-rectus-capitis-posterior-minor"></dcembedurl></dcembed> | ||
==Variety== | ==Variety== | ||
In some individuals, the rectus | In some individuals, the rectus posterior minor capitis muscle may be completely absent or very small on one side. | ||
[[Kategorie:Corpus]] | [[Kategorie:Corpus]] | ||
[[Kategorie:Hea]] | [[Kategorie:Hea]] | ||
[[Kategorie:Muscle]] | [[Kategorie:Muscle]] | ||
Aktuelle Version vom 2. Dezember 2024, 17:06 Uhr
Definition
The rectus posterior minor capitis muscle is a skeletal muscle located in the neck and is part of the autochthonous back musculature.
Course
The rectus posterior minor capitis muscle originates from the posterior tubercle of the atlas (the 1st cervical vertebra). It runs straight to attach to the inferior nuchal line of the occipital bone.
Innervation
The rectus posterior minor capitis muscle is innervated by the medial branches of the posterior rami of the spinal nerves from segment C1. The dorsal ramus of the first spinal nerve is also known as the suboccipital nerve.
Function
When the rectus posterior minor capitis muscle contracts on one side, it causes slight tilting and rotation of the head to the same side. When both sides contract simultaneously, the muscle aids in dorsiflexion of the head.
Variety
In some individuals, the rectus posterior minor capitis muscle may be completely absent or very small on one side.