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Dissection of nose

External nasal nerve; arteries of nose, left anterolateral view

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Image #71-1
Bassett ImageDiagram Image
Legend Image
Dissection of nose
External nasal nerve; arteries of nose, left anterolateral view
The transverse part of the nasal muscle has been removed. Two branches (6,8) of the external nasal nerve are visible. These emerge through the membrane which covers the junction of the nasal bone and lateral nasal cartilage. A filament of the external nasal branch (10) of the infraorbital nerve crosses the external nasal nerves superficially. No communication was found between the nerves.
1 . Branch infratrochlear nerve
2 . Procerus muscle
3 . Dorsal nasal artery
4 . Periosteum of nasal bone
5 . Angular head of levator labii superioris muscle
6 . External nasal branch of anterior ethmoidal nerve (medial branch)
7 . Transverse part of nasalis muscle
8 . External nasal branch of anterior ethmoidal nerve (lateral branch)
9 . Perichondrium of lateral nasal cartilage
10 . External nasal branch of infraorbital nerve
11 . Apex of nose
12 . Naris
13 . Ala nasi
14 . Infratrochlear nerve
15 . Middle palpebral artery
16 . Frontal artery
17 . Orbicularis oculi muscle (cut across)
18 . Superior tarsus
19 . Medial palpebral ligament
20 . Palpebral part of orbicularis oculi muscle
21 . Angularis artery and vein
22 . Orbital part orbicularis oculi muscle
23 . Nasal branch of angular artery
24 . Alar branch of angular artery
25 . Infraorbital head of levator labii superioris muscle