Nasopharynx and its relations.

1. Surgical Anatomy
of
NASOPHARYNX
Debashis Nanda
14BM0024
💣

3. PHARYNX
 NASOPHARYNX
 OROPHARYNX
 HYPOPHARYNX

7. NASOPHARYNX
It is the uppermost part of the pharynx.
Lies behind the nasal cavities.
Length=4cm=Width
Extension
Base of skull Soft Palate

8. 1.
Transition headline
Let’s start with the first set of slides

9. Lympharic Drainage
• Lateral retropharyngeal lymphnodes a/k/a Nodes
of Rouviere,are the first nodes in the lymphatic
drainage of nasopharnx.
• Upper deep cervical nodes through
retropharyngeal & parapharyngeal LN.
• Spinal accessory chain of nodes in the post.
• Ipsilateral or contralateral.

10. Sinus of morgagni
•Lies b/w the base of the skull and
upper free border of superior
constrictor.
Following structures pass through this
space.
• Eustachian tube
• Levator veli palatini muscle
• Ascending palatine artery

11. Passavant’s Ridge
▪ Mucosoal ridge.
▪ Encircles the post. & ant.
Wall of nasopharyngeal
isthmus.
▪ Raised by
palatopharyngeus muscle.
 When soft palate contracts
during deglutition or speech,
it makes firm contact with
passavant’s ridge and cuts
off nasopharynx from
oropharynx.

12. Nasopharyngeal Tonsil
 Sub-epithelial collection of
lymphoid tissue
 At the junction of roof and
poaterior wall of nasopharynx.
 Increases in size upto the age of
6 years and then gradually
atrophies
Tubal tonsil
 Collection of sub-epithelial lymphoid tissue
situated at the tubal elevation.
 Forms a part of the waldeyer’s ring.
 When enlarged due to infection,it causes
eustachian tube occlusion.

13. Nasopharyngeal Bursa
 Epithelial lined median recess found within the adenoid mass.
 Extends from pharyngeal mucosa to the periosteum of the basiocciput.
 Represemts the attatchment of notochord to the pharyngeal endoderm during embryonic life.
 When infected, it may be the cause of persistent post nasal discharge or crusting.
 Sometimes an abscess can form in the bursa- Thornwaldt’s disease.
Rathke’s Pouch
Represented clinically by a dimple
above the adenoids.

14. Surgical Approaches
 Transpalatal
 Sub-labial mid-facial degloving
 Lateral rhinotomy
 Trans-facial maxillary swing
 Mandibular swing
 Infratemporal
 transnasal-maxillary

15. THANKS!Any questions?
😉