Rectus Capitis Lateralis: Difference between revisions

No edit summary
No edit summary
 
(14 intermediate revisions by 5 users not shown)
Line 5: Line 5:
</div>  
</div>  
== Description<br>  ==
== Description<br>  ==
<div>&nbsp;The Rectus capitis anterior (Rectus capitis anticus minor, Musculus rectus capitis anterior in Latin and Muscle droit antérieur de la tête in &nbsp;French) <ref>http://www.anatomyexpert.com/structure_detail/5273/</ref>&nbsp;is a short, flat muscle, situated immediately behind the upper part of the Longus capitis.</div><div><br></div>  
<div>&nbsp;The rectus capitis lateralis is a paired muscle located in the neck. </div><div><br></div>  
== Etymology  ==
{| width="100%" border="0" align="center" cellpadding="1" cellspacing="1"
<div>&nbsp;The English name for this muscle is the anterior straight muscle of the head. The word rectus is Latin for “straight." The word capitis comes from the Latin caput meaning “head.” The Latin term anterior is derived from the Latin ante meaning “before.”&nbsp;<ref>http://www.anatomyexpert.com/structure_detail/5273/</ref></div><div><br></div><div></div><div></div>  
|-
| [[Image:RECTUS LAT.png|center|300x300px]]
| [[Image:RECTUS2.PNG|center|300x300px]]
|}
<div></div>  
== Origin<br>  ==
== Origin<br>  ==


Anterior surface of the lateral mass of the atlas (C1 vertebra)&nbsp;and the root of its transverse process&nbsp;<ref>http://www.wheelessonline.com/ortho/rectus_capitis_anterior</ref>  
Superior surfaces of the transverse processes of the atlas&nbsp;<ref>http://www.wheelessonline.com/ortho/rectus_capitis_lateralis_1</ref><br>  


== Insertion  ==
== Insertion  ==
<div>&nbsp;&nbsp;The inferior surface of the occipital bone anterior to the foreamen magnum&nbsp;<ref>http://www.wheelessonline.com/ortho/rectus_capitis_anterior</ref></div>  
<div>&nbsp; Inferior surface of the jugular process of the occipital bone&nbsp;<ref>http://www.wheelessonline.com/ortho/rectus_capitis_lateralis_1</ref></div><div><br></div><div></div>  
== Nerve Supply  ==
== Nerve Supply  ==


C1, C2
Anterior primary rami of the first cervical spinal nerve (C1)<br>


== Blood Supply  ==
== Blood Supply  ==
<div>&nbsp;The muscle receives blood from the ascending cervical artery, which is a small branch of the inferior thyroid artery from the thyrocervical trunk of &nbsp;the subclavian artery.&nbsp;<ref>http://www.anatomyexpert.com/structure_detail/5273/</ref></div>  
<div>The muscle receives blood from the ascending cervical artery, which is a small branch of the inferior thyroid artery from the thyrocervical trunk of the subclavian artery. It also receives blood from the muscular branches of the vertebral artery. The muscle also receives small muscular branches from the occipital artery as it passes it lateral aspect.&nbsp;<ref>http://www.anatomyexpert.com/structure_detail/5264/493/</ref></div>  
== Action  ==
== Action  ==


Aids in flexion of the head and the neck
*Stabilizes the head<br>  
 
*Weakly assists with lateral flexion of the head&nbsp;<ref>http://www.gpnotebook.co.uk/simplepage.cfm?ID=-1221263280</ref><br><div class="researchbox">  
== Clinical Relevance  ==
<div>&nbsp;Rupture of this muscle (along with the longus capitis muscle) can be cause of hemorrhage from the guttural pouch, caused by trauma to the &nbsp;poll or the base of the skull. This injury can be seen on x-ray by a fracture of the basisphenoid bone, often presenting with clincial neurological &nbsp;signs&nbsp;<ref>http://www.vetmed.vt.edu/education/curriculum/vm8644/equineneck/Definitions/rectuscapitis.html</ref><br></div><div></div>  
== References  ==
== References  ==


<references /><br>  
<references /><br>  


[[Category:Cervical_Anatomy]]
[[Category:Cervical Spine - Anatomy]]
[[Category:Cervical Spine - Muscles]]

Latest revision as of 10:25, 22 July 2021

Original Editor - Venus Pagare

Top Contributors - Venus Pagare, Admin, Tarina van der Stockt, WikiSysop, Kim Jackson and Manisha Shrestha  

Description
[edit | edit source]

 The rectus capitis lateralis is a paired muscle located in the neck.

RECTUS LAT.png
RECTUS2.PNG

Origin
[edit | edit source]

Superior surfaces of the transverse processes of the atlas [1]

Insertion[edit | edit source]

  Inferior surface of the jugular process of the occipital bone [2]

Nerve Supply[edit | edit source]

Anterior primary rami of the first cervical spinal nerve (C1)

Blood Supply[edit | edit source]

The muscle receives blood from the ascending cervical artery, which is a small branch of the inferior thyroid artery from the thyrocervical trunk of the subclavian artery. It also receives blood from the muscular branches of the vertebral artery. The muscle also receives small muscular branches from the occipital artery as it passes it lateral aspect. [3]

Action[edit | edit source]

  • Stabilizes the head
  • Weakly assists with lateral flexion of the head [4]

References[edit | edit source]

  1. ↑ http://www.wheelessonline.com/ortho/rectus_capitis_lateralis_1
  2. ↑ http://www.wheelessonline.com/ortho/rectus_capitis_lateralis_1
  3. ↑ http://www.anatomyexpert.com/structure_detail/5264/493/
  4. ↑ http://www.gpnotebook.co.uk/simplepage.cfm?ID=-1221263280


Retrieved from "https://www.physio-pedia.com/index.php?title=Rectus_Capitis_Lateralis&oldid=278905"