Family Friendly & Specialty Dentists in London, UK
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Structure and Origin
- The zygomaticotemporal nerve is a branch of the zygomatic nerve.
- It passes along the lateral wall of the orbit in a groove in the zygomatic bone.
- It passes through the zygomaticotemporal foramen of the zygomatic bone to emerge at the anterior portion of the temporal fossa.
- In the temporal fossa, it passes between the two layers of the temporal fascia, between the temporal bone and temporalis muscle.
- It pierces the temporal fascia about 2 cm superior to the zygomatic arch.
- It originates in the zygomatic bone.
- It is part of the trigeminal nerve (CN V).
- Its origin is located in the lateral wall of the orbit.
Course
- The zygomaticotemporal nerve passes along the lateral wall of the orbit in a groove in the zygomatic bone.
- It passes through the zygomaticotemporal foramen of the zygomatic bone.
- It emerges at the anterior portion of the temporal fossa.
- In the temporal fossa, it passes between the two layers of the temporal fascia.
- It pierces the temporal fascia about 2 cm superior to the zygomatic arch.
Distribution
- The zygomaticotemporal nerve provides sensory innervation to a small area of skin over the temple.
- It is responsible for sensory innervation superior to the zygomatic arch.
- The nerve covers a small area of skin on the temple.
Communications
- The zygomaticotemporal nerve communicates with the facial nerve (CN VII).
- It also communicates with the lacrimal nerve, a branch of the ophthalmic nerve (CN V1).
- It communicates with the auriculotemporal nerve, a branch of the mandibular nerve (CN V).
- The zygomaticotemporal nerve confers a parasympathetic secretomotor communicating branch to the lacrimal nerve.
- The parasympathetic branch contains post-ganglionic fibers for the lacrimal gland from the pterygopalatine ganglion.
Function
- The zygomaticotemporal nerve is a sensory nerve.
- It is part of the trigeminal nerve (CN V).
- It provides sensory innervation to a small area of skin over the temple and superior to the zygomatic arch.
