Lateral view of the optic nerve and muscles

(A) Eye; (B) Lacrimal gland; (C) Lateral rectus muscle; (D) Superior rectus muscle; (E) Levator palpebrae superioris; (F) Inferior rectus muscle; (G) Lateral rectus muscle; (H) Superior oblique muscle; (I) Trochlea; (K) Part of the inferior oblique muscle; (L) Internal carotid artery in the cavernous sinus; (M) Carotid penetrating into the cavity of the skull; (N) Ophthalmic artery arising from the internal carotid artery; (a) Optic nerve passing through its foramen; (b) Part of the fifth nerve in the cranial cavity; (c) Mandibular branch of the fifth nerve (V3); (d) Maxillary branch of the fifth nerve (V2); (e) Ophthalmic branch of the fifth nerve (V1); (f) Frontal branch of V1, divided again into two branches; (g) Nasal branch of V1 ; (h) Nasociliary branch of V1; (i) Lacrimal branch of V1; (k) Trochlear nerve; (l) Abducens nerve in the cavernous sinus; (n) Insertion of the abducens nerve into the lateral rectus muscle; (o) Trunk of the oculomotor nerve; (p) The superior, lesser branch of the oculomotor nerve; (q) Branches of the oculomotor nerve to the superior rectus muscle; (r) Branch of the oculomotor nerve to the levator palpebrae superioris; (s) The lower branch of the oculomotor nerve is larger; (t) Branch of the oculomotor nerve to the medial rectus muscle; (u) Branch of the oculomotor nerve to the inferior rectus muscle; (x) Branch of the oculomotor nerve to the inferior oblique muscle; (y) The ophthalmic (ciliary) ganglion, (a peripheral parasympathetic ganglion), loosened from its connection with the optic nerve, and rolled outwards. (The ciliary ganglion is situated near the apex of orbit between the optic nerve and lateral rectus muscle.); (z) The shorter root of the ophthalmic (ciliary) ganglion, from the inferior oblique nerve (Preganglionic parasympathetic fibers from the Edinger Westphal nucleus pass to the inferior oblique muscle branch of the oculomotor nerve to reach the ciliary ganglion, where preganglionic fibers synapse with postganglionic fibers. Postganglionic fibers pass through the short ciliary nerve to supply the pupillary sphincter and the ciliary muscle.)

Note: the numerals are omitted from this legend.

(Source: Zinn JG. Descriptio anatomica oculi humani. Göttingen, B. Abrahami Vandenhoeck, 1780. Tab VI, Figure 1. Public domain. Figure edited and labeling translated and updated from the original French labels by Dr. Douglas J Lanska.)