PRAC.3 Flashcards
m. nasolabialis n. infraorbitalis n. buccalis n. mentalis v. facialis and its branches gl. zygomatica
1
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A
M. nasolabialis/Levator nasolabialis
Origin: Maxilla
Insertion: Edge of upper lip on external naris
Action: Dilate nostrils, raise upper lip
2
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N. infraorbitalis
- Ex n. maxillaris (CN-V2) ex n. trigeminus (CN-V)
- Exits from foramen infraorbitale with radiating branches
- Sensory nerve to the muzzle
3
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A
N. buccalis
- Ex n. mandibularis (CN-V3) ex n. trigeminus (CN-V)
- Sensory nerve to mucous membrane and skin of cheek
- Can be traced with the deep facial vein, slightly deeper
4
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Nn. mentalis
- Ex n. alveolaris mandibularis ex n. mandibularis (CN-V3) ex n. trigeminus (CN-V)
- Branches from the foramina mentalia
- Sensory nerve to the lower lip
5
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V. facialis
- Ex v. linguofacialis ex v. jugularis externa
6
Q
List the branches of v. facialis
A
- V. profunda faciei
- V. angularis oculi
- V. nasalis dorsalis
- V. nasalis lateralis
- V. labialis inferior
- V. labialis superior
- V. submentalis
- V. infraorbitalis
7
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V. profunda faciei
8
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V. angularis oculi
9
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V. nasalis dorsalis
10
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V. infraorbitalis
11
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V. labialis superior
12
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V. labialis inferior
13
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Gl. zygomatica
- Beneath the eye
- Partially covered by zygomatic arch
- M. masseter must be cut
