Alar fascia
Encyclopedia
The alar fascia is a layer of fascia, sometimes described as part of the prevertebral fascia
, and sometimes as in front of it.
Anteriorly, it reaches the skull, and caudally, it reaches the second thoracic vertebra.
It is the posterior border of the retropharyngeal space
.
Prevertebral fascia
The prevertebral fascia is a fascia in the neck.-Variations:In some literature, the prevertebral fascia also includes the rest of the fascia extending around the vertebral column and enclosing all muscles laterally and posteriorly to it...
, and sometimes as in front of it.
Anteriorly, it reaches the skull, and caudally, it reaches the second thoracic vertebra.
It is the posterior border of the retropharyngeal space
Retropharyngeal space
The retropharyngeal space is a space bounded by the buccopharyngeal fascia anteriorly and the alar fascia posteriorly.It includes the retropharyngeal lymph nodes....
.