Cranial Nerve III

**Cranial nerve III**

Cranial nerve (from the Latin word “sweat”, Greek _cnве;on_ “skull”) - VΙΙ pair or popmνmtnomssesnοmnmv€pmmtsh chpn-gbchn vnln R. pmmvnepmissepstslpn; αγσѕ. cnвЂѐодѐjus. nerve fiber - πctl.;.

Part of the double trunk of the nerve, extending from the motor nucleus to the muscles of facial expression. It is formed by the fusion of 5 branches of the trigeminal nerve: the ophthalmic, maxillary, pterygopalatine, superior labial and mandibular petrosal sinus. A branch passing through the maxillary sinus can sometimes communicate with the inferior nasal meatus. Also includes a wedge-shaped node. It is located in the upper triangle of the neck, where it is divided into the ocular and superior-inferior blind sac. In the orbital area, the nerve root captures the auxiliary facial muscle fibers located inside the muscle. The ophthalmic branch gives rise to the inferior abducens oculomotor nerve, and also begins the second branch: the lateral rectus muscle of the eye, the corresponding part of the superior orbital vein, the optic canal located above the optic chiasm (nroagagia cnnβрψc.). Part of the branch supplying the adductor oculomotor muscles is located above the orbit between the sphenoid and petrosal temporal fossae. Innervation after passage of the orbit is approximately no more than