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20 Cards in this Set
- Front
- Back
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Hyoid bone |
-composed of greater horn, lesser horn, and body |
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Platysma |
-innervated by cervical branch of CN VII -muscle of facial expression |
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Sternocleidomastoid |
-innervated by CN XI -action is tilting head laterally and rotating head |
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Superficial Fascia contents |
-cutaneous nerves, blood vessels, lymph nodes, and covered by platysma |
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Deep Cervical Fascia contents |
-forms the carotid sheath around common carotid, internal jugular, and vagus nerve |
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Deep Cervical Fascia layers |
-investing layer: surrounds the entire neck deep to subcutaneous -pretracheal layer: surrounds anterior organs of neck -prevertebral layer: surrounds vertebral column and associated muscles |
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Retropharyngeal Space |
-space between buccopharyngeal and prevertebral fascia -opens inferiorly into posterior mediastinum |
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Divisions of Posterior Triangle |
-occipital triangle: SCM, omohyoid, trapezius -omoclavicular triangle: clavicle, omohyoid, SCM |
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Divisions of Anterior Triangle |
-submandibular triangle -carotid triangle -muscular triangle -submental triangle |
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Cutaneous Branches of Cervical Plexus |
-lesser occipital: C2/3 -greater auricular: C2/3 -supraclavicular: C2/3 -transverse cervical: C3/4 |
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External Jugular tributaries |
retromandibular and posterior auricular |
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Contents of Scalene gap |
-brachial plexus roots and subclavian a. |
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Posterior Triangle arteries |
subclavian a. and its branches: -thyrocervical trunk: transverse cervical, ascending cervical, inferior thyroid, suprascapular -costocervical trunk: deep cervical, supreme intercostal -vertebral artery |
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Submental Triangle |
borders: hyoid bone, anterior diagastric x2, mylohyoid floor contents: lymph nodes and small veins |
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Submandibular Triangle |
borders: mandible, diagastric anterior, diagastric posterior, mylohyoid floor contents: submandibular gland, CN XII, mylohyoid nerve, facial artery/nerve |
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Carotid Triangle |
borders: posterior diagastric, SCM, superior omohyoid contents: division of common carotid, IJV, CN X, CN XII, superior root of ansa cervicalis |
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Carotid Sinus |
baroreceptor innervated by CN IX and CN X |
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Carotid Body |
chemoreceptor innervated by CN IX and CN X |
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Muscular Triangle |
borders: anterior omohyoid, SCM, midline of neck contents: infrahyoid muscles, thyroid/ parathyroid gland |
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Torticollis |
-extension of muscles in neck that causes twisted neck |
