HEAD M, V, N Flashcards
gl. parotis ductus parotideus ln. parotideus n. facialis n. auriculotemporalis
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Gl. parotis
Located between gl. mandibularis and the ear
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Ductus parotideus
- Runs over m. masseter*
- Opens into oral vestibule, approx. P4*
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Ln. parotideus
Between m. masseter and gl. parotis
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N. facialis (CN-VII)
From caudal border of the pons, exiting skull at for. stylomastoideum
Motor nerve → Muscle of facial expression
How to access n. facialis
Lift and reflect gl. parotis
List the branches of n. facialis
- N. auricopalpebralis
- R. buccalis dorsalis
- R. buccalis ventralis
- R. auricularis rostralis
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N. auriculotemportalis
- ex n. mandibularis ex. n. trigeminus (CN-V)
- Sensory nerve to ear, temple and cheek
- Leads to r. auricularis rostralis
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N. trigeminus (CN-V)
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R. buccalis dorsalis
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R. buccalis ventralis
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R. auricularis rostralis
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R. buccalis ventralis
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Ductus parotideus
- Runs over m. masseter*
- Opens into oral vestibule, approx. P4*
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Gl. mandibularis
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R. buccalis dorsalis
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N. auriculotemportalis
ex n. mandibularis ex. n. trigeminus (CN-V)
Sensory nerve to ear, temple and cheek
Leads to r. auricularis rostralis
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R. buccalis dorsalis
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R. buccalis ventralis
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N. facialis (CN-VII)
From caudal border of the pons, exiting skull at for. stylomastoideum
Motor nerve → Muscle of facial expression
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N. auriculopalpebralis
- Ex n. facialis (CN-VII)
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N. palpebralis/r. zygomaticus
- Ex n. auriculopalpebralis ex n. facialis (CN-VII)
- Located under gl. parotis
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N. zygomaticotemporalis
- Ex n. maxillaris (CN-V2) ex. n. trigeminus (CN-V)
- Sensory nerve
- From the bottom 3rd of orbital ligament
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N. zygomatofacialis
- Ex. n. maxillaris (CN-V2) ex n. trigeminus (CN-V)
- Sensory nerve
- Runs out of a space ventral to the orbital ligament
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N. frontalis
- Ex n. opthalmicus (CN-V1) ex n. trigeminus (CN-V)
- Sensory nerve
- Runs with a vessel within the orbit
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Gl. lacrimalis
- Under the orbital ligament
- Caudal to the eye
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N. auriculopalpebralis r. zygomaticus
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N. auriculotemporalis
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N. auriculopalpebralis
- Ex n. facialis (CN-VII)
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N. frontalis
- Ex n. opthalmicus (CN-V1) ex n. trigeminus (CN-V)
- Sensory nerve
- Runs with a vessel within the orbit
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M. nasolabialis/Levator nasolabialis
Origin: Maxilla
Insertion: Edge of upper lip on external naris
Action: Dilate nostrils, raise upper lip
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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
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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
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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
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V. facialis
- Ex v. linguofacialis ex v. jugularis externa
List the branches of v. facialis
- V. profunda faciei
- V. angularis oculi
- V. nasalis dorsalis
- V. nasalis lateralis
- V. labialis inferior
- V. labialis superior
- V. submentalis
- V. infraorbitalis
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V. profunda faciei
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V. angularis oculi
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V. nasalis dorsalis
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V. infraorbitalis
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V. labialis superior
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V. labialis inferior
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Gl. zygomatica
- Beneath the eye
- Partially covered by zygomatic arch
- M. masseter must be cut
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M. digastricus
Origin: Processus paracondylaris of occipital Bone
Insertion: Corpus mandibulae
Action: Open Mouth
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M. digastricus
Origin: Processus paracondylaris of occipital Bone
Insertion: Corpus mandibulae
Action: Open Mouth
7
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Gl. mandibularis
- Caudal to angulus mandibulae
- Partly covered by gl. parotidea
- Between vv. maxillaris et linguofacialis
11
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Gl. sublingualis monostomatica
- Rostral to gl**. mandibularis
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Gl. sublingualis polystomatica
- Along ductus sublingualis
- Opens into recessus sublingualis
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Ductus sublingualis
- Opens at caruncula sublingualis
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- *Ductus mandibularis
- Opens at caruncula sublingualis
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Gl. sublingualis polystomatica
- Along ductus sublingualis
- Opens into recessus sublingualis
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Gl. sublingualis monostomatica
- Rostral to gl**. mandibularis
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Lc. mandibulare
(Lnn. mandibulares)
- Ventral to gl**. mandibualris
- Nodes lie on both sides of v. facialis
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Ln. retropharyngeus medialis
- Reflect gl. mandibularis rostrally
- Found lying on the trachea, ventral to ala atlantis
How to locate:
- Ductus mandibularis
- Ductus sublingualis
- Gl. sublingualis polystomatica
- Lift gll**. mandibularis et sublingualis monostomatica
- Cut m. digastricus near its origin
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V. maxillaris
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V. linguofacialis
2
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V. maxillaris
7
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V. maxillaris
11
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V. linguofacialis
2
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V. maxillaris
7
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V. maxillaris
11
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V. linguofacialis
How are n. lingualis and the monostomatic and mandibular ducts located?
- Paramedian cut along the mylohyoid
- Repeat with geniohyoid
- The ducts are located next to the vein