Diessection of the head showing the facial branches of the trigeminal nerve
Object numberGC.9217
TitleDiessection of the head showing the facial branches of the trigeminal nerve
DescriptionDiessection of the head showing the facial branches of the trigeminal nerve. The trigeminal is the fifth and most complex of the cranial nerves. It has both sensory and motor functions, and is involved in sensation in the face, and biting and chewing.
The preparation is a partial dissection of the left half of the head and face of an adult, which has been dried and varnishedal
The dissection shows the following muscles:
Facial muscles
- orbicularis oculi
- quadratus labii superioris
- zygomaticus
- masseter
- buccinator
- triangularis
Head muscles
- left half of the frontalis and the left half of occipitalis muscles with the galea aponeurotica
- temporalis muscle
- auricularis anterior
- auricularis superior
- auricularis posterior
Neck muscles
- parts of the sternocleido-mastoid
- trapezius
- between them the splenius is partly exposed.
The parotid gland is defined, dried and shrunken and the parotid. duct is painted red.
Nerves:
- The facial nerve has not been preserved.
- The supratrochlear and supra-orbital branches of the frontal nerve are traced from the superior margin of the orbit to the middle third of the calvaria.
- The termination of the maxillary nerve after its exit from the infra-orbital foremen and its inferior palpebral, external nasal and superior labial branches are defined.
- Some of the terminal branches of the buccinator nerve from the mandibular nerve are present, and the
nerve ascends anterior to the auricula
- At the chin the mental nerve, the terminal branch of the inferior alveolar nerve, emerges from the mental foramen.
- From the posterior border of the sternomastoid muscle ascends towards the auricula the great auricular nerve, coloured brown. It is derived from the anterior divisions of the second and third cervical nerves.
Production periodNineteenth century
Object nameHEAD, trigeminal nerve
Object categoryAnatomical, specimen
Dimensions
- Case Width: 33.1 cm
Length: 31 cm
Height: 12.3 cm