Parallel to the carotid sheath
and along its medial aspect the prevertebral fascia
gives off a thin lamina, the buccopharyngeal fascia
, which closely invests the constrictor muscles of the pharynx
and is continued forward from the constrictor pharyngis superior
onto the Buccinator
It is attached to the prevertebral layer by loose connective tissue only, and thus an easily distended space, the retropharyngeal space, is found between them.
- - "Pharynx: The Pharyngeal Constrictor Muscles"