Posterior nasal spine

The posterior nasal spine is part of the horizontal plate of the palatine bone of the skull. It is found at the medial end of its posterior border. It is paired with the corresponding palatine bone to form a solid spine. It is the attachment of the uvula muscle.

Posterior nasal spine
Left palatine bone. Posterior aspect. Enlarged. (Posterior nasal spine labeled at bottom right.)
Roof, floor, and lateral wall of left nasal cavity. (Posterior nasal spine labeled at bottom left.)
Details
Part of	Medial end of posterior border of horizontal plate of palatine bone of skull
System	Skeletal
Identifiers
Latin	spina nasalis posterior ossis palatini
TA98	A02.1.13.017
TA2	815
FMA	75776
Anatomical terms of bone [edit on Wikidata]

Structure

The posterior nasal spine is found at the medial end of the posterior border of the horizontal plate of the palatine bone of the skull.

Function

The posterior nasal spine is the attachment of the uvula muscle.

Clinical applications

The posterior nasal spine is an important cephalometric landmark.^[1]

Additional images

• 
  Base of skull. Inferior surface.

See also

• anterior nasal spine