Advertisements
What are the Parts of External Nose?
Parts of external nose are:
- Root of the nose- at the junction of nose with forehead.
- Tip of nose- lower free end.
- Dorsum of nose – rounded border between tip and root of nose.
- Ala of nose- rounded eminence on lateral aspect of nostril.
- Nostrils- anterior nasal openings.
- Columella of nose- inferior margin of nasal septum separating nostrils.
Name the Structural Components of External Nose.
Framework of external nose is made up of bones in the upper part and cartilages in the lower part.
Upper bony part is made up of:
- Nasal process of frontal bone
- Right and left nasal bones.
- Frontal process of right and left maxillae.
Lower cartilaginous part is made up of:
- Right and left lateral cartilages.
- Right and left major and minor alar cartilage.
Name the Nerves that Supply External Nose.
Branches of ophthalmic and maxillary nerve supply external nose:
- Branches of ophthalmic
- Supratrochlear
- Infratrochlear
- External nasal
- Branch of maxillary
- Nasal branch of infraorbital
I like your note very well, especially the illustration. it is better if it is in the form of PDF and the like in order to download and read.
Your notes are very good specially illustrations. I would like to ?use some illustrations from your note for example nerve supply of external and internal nose. Shall I get your permission?