Dissection of nose

Vestibule

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Image #71-3
Bassett ImageDiagram Image
Legend Image
Dissection of nose
Vestibule
The lateral wall of the nose has been cut away.
1 . Nasal bone
2 . External nasal branch of anterior ethmoidal nerve
3 . Lateral nasal cartilage (cut away)
4 . Nasal septum
5 . Greater alar cartilage (lateral crus cut away)
6 . Nasal mucosal membrane
7 . Apex nasi
8 . Hair
9 . Vestibule (of nose)
10 . Cut edge of skin of mobile nasal septum
11 . Artery of nasal septum
12 . Depressor septi nasi muscle (lateral fibers form alar part nasalis muscle, not a separate muscle in this case)
13 . Superior labial branches infraorbital nerve (cut ofl)
14 . Labial gland
15 . Orbicularis oris muscle
16 . Frontal process of maxilla
17 . Inferior oblique muscle
18 . Infraorbital margin
19 . Zygomaticomaxillary suture
20 . Infraorbital head of levator labii superioris muscle
21 . Branches of infraorbital nerve emerging from infraorbital foramen
22 . Transverse part of nasalis muscle (cut off)
23 . Canine fossa
24 . Remnant of angular head of levator labii superioris muscle
25 . Internal nasal branch infraorbital nerve (cut off)
26 . Depressor anguli oris muscle (cut off)
27 . Buccinator muscle
28 . Superior labial artery