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  1. Fascias of the neck
    1. Superficial cervical fascia
      details - between the dermis and deep fascia; contains the platysma muscle
    2. Deep cervical fascia
      1. Superficial (investing) layer (lamina)
        details - extends from the mastoid & mandible to the clavicle & acromion, and from the ligamentum nuchae and spinous processes to the midline; surrounds the trapezius, SCM and inferior portion of the parotid gland; continuous with remainder of the parotid fascia
      2. Carotid sheath
        details - surrounds the common & internal carotid a., internal jugular v. and the vagus n.
      3. Prevertebral fascia
        details - extends lateral & anterior to levator scapulae, longus colli & capitis, and scalene muscles to form the floor of the posterior triangle; from base of skull to mediastinum; continuous with axillary sheath and anterior longitudinal ligament; defines the posterior boundary of the retropharyngeal space
      4. Pretracheal (visceral) fascia (lamina)
        details - surrounds the infrahyoid muscles, thyroid gland, esophagus and trachea; continuous with the buccopharyngeal fascia
    3. Pharyngobasilar fascia
      details - internal epimysium of the constrictor muscles; extends from the base of the skull (pharyngeal tubercle) to the pterygomandibular raphe & pharyngeal raphe
    4. Buccopharyngeal fascia
      details - external epimysium of the constrictor muscles; continuous with the pretracheal fascia

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