Notes in Anterior Neck Muscles

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Published	11/08/2024	The neck is surrounded by {{c1::subcutaneous tissue (superficialfascia)}} & compartmentalized by layers of deep {{c2::cervical fascia}}
Published	11/08/2024	Cervical subcutaneous tissue (superficial cervical fascia): Fatty CT between {{c1::dermis}} & {{c2::investing layer of deep cervical fascia}}House…
Published	11/08/2024	Deep cervical fascia: {{c2::Three}} fascial layers/sheaths that {{c2::support}} cervical viscera, muscles, vessels, & deep lymph nodes Provide {{c…
Published	11/08/2024	Platysma OR: {{c1::deep fascia of the superior parts of the deltoid & pectoralis major mm}}X: {{c2::inferior border of the mandible, blends with t…
Published	11/08/2024	Platysma Action:Muscle of facial expression - {{c1::conveys tension or stress}} Superior action {{c2::tenses the skin}}, producing {{c3::vertical skin…
Published	11/08/2024	Deep Cervical Fascia Investing: {{c1::superficial}} layer surrounding the {{c1::neck & encloses trapezius & SCM}} Posterior attachme…
Published	11/08/2024	Deep Cervical Fascia:Pretracheal layer limited to the {{c1::anterior}} part of the neck Extends from {{c2::hyoid}} into {{c2::thorax}}, & ble…
Published	11/08/2024	Deep Cervical FasciaPrevertebral layer:forms a {{c1::tubular}} sheath for the {{c1::vertebral column}} & {{c1::its muscles (longus mm, scalenes mm…
Published	11/08/2024	{{c1::image-occlusion:rect:left=.0246:top=.7273:width=.1654:height=.0719:oi=1}}{{c2::image-occlusion:rect:left=.125:top=.3152:width=.187:height=.0621:…
Published	11/08/2024	Carotid sheath contains the {{c1::Common & internal carotid aa}}{{c1::Internal jugular v}} {{c1::Vagus nerve (CN X)}} {{c1::Deep cervical ly…
Published	11/08/2024	Carotid Sheath Tubular fascial investment that extends from the {{c2::cranial base}} to the {{c2::root of the neck}} Blends anteriorly with the {{c1::…
Published	11/08/2024	Space between the fascial layers in neck that permit spread of infections from the neck to mediastinum:{{c1:: Pretracheal space}}{{c1::Retrophary…
Published	11/08/2024	{{c1::image-occlusion:rect:left=.127:top=.6008:width=.1791:height=.0513:oi=1}}{{c2::image-occlusion:rect:left=.7352:top=.6667:width=.2402:height=.0769…
Published	11/08/2024	Sternocleidomastoid (SCM)  Broad, strap-like muscle that has two heads: 1) {{c1::sternal head}} 2) {{c1::clavicular head}} Separated by…
Published	11/08/2024	Sternocleidomastoid (SCM) Bilateral action: {{c1::flex}} cervical vertebral column so that the chin approaches the {{c1::manubrium}} Unilate…
Published	11/08/2024	Posterior Cervical Region contains the {{c1::trapezius}} and is superficial to the {{c2::suboccipital region}}
Published	11/08/2024	Sternocleoidomastoid (SCM)IN: {{c1::CNXII - Accessory and branches from anterior rami of C2 to C3}}
Published	11/08/2024	{{c1::image-occlusion:rect:left=.1368:top=.4842:width=.1083:height=.0655:oi=1}}{{c2::image-occlusion:rect:left=.8022:top=.5934:width=.1201:height=.046…
Published	11/08/2024	{{c1::image-occlusion:rect:left=.6841:top=.7933:width=.2028:height=.051:oi=1}}{{c2::image-occlusion:rect:left=.688:top=.8735:width=.25:height=.0765:oi…
Published	11/08/2024	Posterior Triangle of the neck Bounded:Anteriorly by posterior border of the {{c1::SCM}} Posteriorly by anterior border of {{c1::trapezius}} Infe…
Published	11/08/2024	Occipital triangle contains {{c1::occipital a}} {{c1::spinal accessory n (CN XI) }}
Published	11/08/2024	Omoclavicular triangle contains  {{c1::external jugular vein (EJV)}} crosses this triangle superficially  {{c1::subclavian a (3rd part)}} de…
Published	11/08/2024	Anterior triangle of the neckBoarders:  Anterior boundary formed by {{c1::median line}} of the neck Posterior boundary formed by anterior border …
Published	11/08/2024	{{c1::image-occlusion:rect:left=.0463:top=.5101:width=.1594:height=.0492:oi=1}}{{c2::image-occlusion:rect:left=.0994:top=.6721:width=.1634:height=.040…
Published	11/08/2024	Muscles of the Anterior Triangle {{c1::Suprahyoid mm}}{{c1::Intrahyoid mm}}
Published	11/08/2024	Stylohyoid muscle: During {{c1::swallowing}} it pulls the hyoid bone {{c1::posterosuperiorly}} IN: {{c2::CN VII - Facial}}
Published	11/08/2024	Digastric muscle has posterior & anterior bellies When the mandible is fixed: {{c2::raises hyoid bone}} When the hyoid is fixed: {{c2::opens mout…
Published	11/08/2024	{{c1::image-occlusion:rect:left=.6111:top=.2421:width=.2442:height=.0344:oi=1}}{{c2::image-occlusion:rect:left=.6251:top=.8184:width=.2361:height=.048…
Published	11/08/2024	Mylohyoid muscle  Forms the {{c1::floor}} of the mouth OR: {{c2::the mylohyoid line on the medial surface of mandible}}X: {{c2::hyoid bone}} IN: …
Published	11/08/2024	{{c1::image-occlusion:rect:left=.3671:top=.439:width=.2264:height=.028:oi=1}}{{c2::image-occlusion:rect:left=.1486:top=.8384:width=.2461:height=.0322:…
Published	11/08/2024	Geniohyoid muscle  OR: {{c2::inferior mandible }}X: {{c2::body of hyoid}} IN: {{c2::branch from the anterior ramus of C1 carriedalong CNXII…
Published	11/08/2024	Sternohyoid muscle: OR: {{c1::posterior aspect of sternoclavicular joint}} & {{c1::manubrium}}X: {{c1::body of the hyoid}}IN: {{c1::innervated by …
Published	11/08/2024	Omohyoid muscle:consists of {{c1::superior}} & {{c1::inferior}} bellies with an {{c1::intermediate tendon }}AC: {{c2::Depresses &am…
Published	11/08/2024	Thyrohyoid muscle: OR: {{c2::thyroid cartilage}}X: {{c2::greater horn/body of hyoid bone}}IN: {{c2::anterior ramus of C1 carried along CNXII}} AC: {{c…
Published	11/08/2024	Sternothyroid muscle:AC: {{c1::Draws the larynx (thyroid cartilage) downward}} IN: {{c2::anterior rami of C1-C3 via ansa cervicalis}}
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