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7 Cards in this Set
- Front
- Back
Investing layer of deep cervical fascia
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Encloses the SCM and trapezius. Forms the roof of the posterior triangle.
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Prevertebral fascia
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Covers prevertebral muscles, extends laterally and covers the scalene muscles, extends posteriorly and forms a complete tubular investment for prevertebral muscles and many of those on the back of the neck.
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Visceral fascia
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Surrounds the cervical viscera (trachea, esophagus, thyroid gland) subdivided into 2 components.
Pretracheal: Forms sheath for thyroid gland. Buccopharyngeal: Covers buccinator and pharyngeal muscles at a higher level, and at this level covers the back of the esophagus. |
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Retropharyngeal space
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Area behind the pharynx or esophagus bounded anteriorly by the buccopharyngeal fascia, posteriorly it lies in front of the prevertebral muscles and fascia.
Filled with loose areolar tissue which allows the pharynx and esophagus to expand when you swallow. On either side is carotid sheath. Extends from the base of the skull to down behind the heart. Infections can spread through. |
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Carotid sheath
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Formed by three layers of deep cervical fascia (investing, prevertebral, visceral).
Surrounds the common carotid artery, internal jugular vein and vagus nerve. |
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Buccopharyngeal fascia
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Forms the anterior limit of the retropharyngeal space.
Covers the buccinator and 3 constrictor muscles of the pharynx. |
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Lateral pharyngeal space
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Lateral to the pharynx, just medial to the pterygoid muscles and just medial to the parotid gland.
A fat-filled space with 2 muscles in it: styloglossus and stylopharyngeus. Continuous with retropharyngeal space. Infections can spread in this space as well. |