9. Extent:
base of skull to tracheal bifurcation
Location:
bet alar fascia n buccopharyngeal fascia covering
muscles
Source of infection:
parapharyngeal space,
parotid,
oesophagus,
retropharyngeal nodes,
spine.
Applied: Retropharyngeal abscess .pgmedicalworld.com
10. -Extent:
base of skull to hyoid bone & submandibular
gland
-Location:
Buccopharyngeal fascia covering lateral aspect
of pharynx medially, n fascia covering pterygoid
muscles, mandible n parotid gland laterally
-Sources of infection:
peritonsillar abscess, parotid abscess,
submandibular gland infection.
-Applied: Parapharynreal abscess.
pgmedicalworld.com
22. 1. Pyriform sinus (fossa)
A. anastetia of subepiglottic part of larynx.
B. Reffered pain to ear in ca. of fossa.
2. Post-cricoid region- site for carcinoma
3. Posterior pharyngeal wall-extents from hyoid
bone to cricoarytenoid jt.
pgmedicalworld.com
