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9 Cards in this Set
- Front
- Back
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Platysma in the superficial fascia
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Tenses skin of neck
Depresses mandible Muscle of facial expression Supplied by cervical branch of facial nerve |
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Deep fascia
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Provide cleavage planes
Slippery surface faciliartes movement of structures Limit and direct spread of infections 5 layers: Investing layer Pretrachial layer Prevertebral layer Caratoid Sheath Buccopharyngeal fascia |
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Investing layer
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Encloses neck in continuous layer of fascia, attached to bone above and below
Splits to enclose parotid and submandicular glands, the sternomastoid and trapezius muscles Binds down the intermediate tendons of the digastric omohyoid muscles |
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Sternocleidomastoid muscle
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Attachments:
Inferior: manubrum and clavical Superior: Mastoid process and superior nuchal line Actions: Acting alone: rotates the face to the OPPOSITE side while bending the head to the same side Acting Together: Flexes the head and the neck Innervation: Spinal accessory nerve; pierce the muscle on the way to the trapezius Torticollis (wry neck): is a condition in which the head is tilted toward one side |
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Pretrachial Fascia
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Encloses thyroid gland
Attachments: Superior: laryngeal cartilagtes Inferior: decends anterior to the trachea to fuse with fibrous pericardium Since this fascia attaches to both the thyroid gland and the laryns, the thyroid moves with the larynx during swallowing |
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Prevertebral layer
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Located anterior to the cervical vertebrae and the muscles arising from them (eg: scalenes)
Prolonged into the axilla |
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Buccopharyngeal Fascia
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fascial covering the pharynx
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Retropharyngeal space
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Portential space of loose connective tissue between the buccopharyngeal fascia and the prevertebral fascia
Facilitates movement of pharynx and larynx during swallowing Opens inferiorly into the posterior mediastinum |
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Carotid Sheath
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Condensation of fascia which encloses the common and internal carotid arteries, the jugular vein, and the vagus nerve
The nerve lies behind the artery and the vein -Thick over artery -Thing over vein (allows for vein dilation -Continuous wit the inveting, pretracheal, and prevertebral layers |
