Editing Neck (section)

=== Muscles and triangles ===
Muscles of the neck attach to the [[Human skull|skull]], [[hyoid bone]], [[clavicle]]s and the [[sternum]]. They bound the two major neck triangles; anterior and posterior.<ref name=":0" /><ref>{{Cite journal|last1=Kikuta|first1=Shogo|last2=Iwanaga|first2=Joe|last3=Kusukawa|first3=Jingo|last4 =Tubbs|first4=R. Shane|date=30 June 2019|title=Triangles of the neck: a review with clinical/surgical applications|journal=Anatomy & Cell Biology|volume=52|issue=2|pages=120–127|doi=10.5115/acb.2019.52.2.120|issn=2093-3665|pmc=6624334|pmid=31338227}}</ref>

'''[[Anterior triangle of the neck|Anterior triangle]]''' is defined by the anterior border of the [[sternocleidomastoid muscle]], inferior edge of the [[mandible]] and the midline of the neck. It contains the [[Stylohyoid muscle|stylohyoid]], [[Digastric muscle|digastric]], [[Mylohyoid muscle|mylohyoid]], [[Geniohyoid muscle|geniohyoid]], [[Omohyoid muscle|omohyoid]], [[Sternohyoid muscle|sternohyoid]], [[Thyrohyoid muscle|thyrohyoid]] and [[sternothyroid muscle]]s. These muscles are grouped as the [[Suprahyoid muscles|suprahyoid]] and [[infrahyoid muscles]] depending on if they are located superiorly or inferiorly to the hyoid bone. The suprahyoid muscles (stylohyoid, digastric, mylohyoid, geniohyoid) elevate the hyoid bone, while the infrahyoid muscles (omohyoid, sternohyoid, thyrohyoid, sternothyroid) depress it. Acting synchronously, both groups facilitate [[speech]] and [[swallowing]].<ref name=":0" /><ref name=":1" /><ref name=":2" />

'''[[Posterior triangle of the neck|Posterior triangle]]''' is bordered by the posterior border of the sternocleidomastoid muscle, anterior border of the [[Trapezius|trapezius muscle]] and the superior edge of the middle third of the clavicle. This triangle contains the sternocleidomastoid, trapezius, [[Splenius capitis muscle|splenius capitis]], [[Levator scapulae muscle|levator scapulae]], omohyoid, anterior, middle and posterior [[scalene muscles]].<ref name=":0" /><ref name=":1" /><ref name=":2" />