Henry Gray (18251861). Anatomy of the Human Body. 1918. of the
sympathetic. In the superior orbital fissure it occasionally
gives off a branch to the lacrimal nerve. It gives off a
recurrent branch which passes backward between the layers of the
tentorium cerebelli and divides into two or three filaments
which may be traced as far as the wall of the transverse sinus.
5e. The Trigeminal Nerve (N. Trigeminus; Fifth Or Trifacial
Nerve) The trigeminal nerve is the largest cranial nerve and is
the great sensory nerve of the head and face, and the motor
nerve of the muscles of mastication. It emerges from the side of
the pons, near its upper border, by a small motor and a large
sensory rootthe former being situated in front of and medial to
the latter. Motor Root.The fibers of the motor root arise from
two nuclei, a superior and an inferior. The superior nucleus
consists of a strand of cells occupying the whole length of the
lateral portion of the gray substance of the cerebral aqueduct.
The inferior or chief nucle