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PLATE VIII.
THE COD.
(GADUS MORRHUA.)
FIGURE I.
THE DORSAL ASPECT OF THE BRAIN AND SPINAL CHORD
- a. ANTERIOR lobes of the brain.
- b. Optic or posterior lobes of the brain.
- c. Cerebellum.
- 1. Olfactory nerve, arising from the anterior lobe of the brain, and passing forward and forming a round ganglion near the nose, from which branches are sent to the membranous plaits or folds exposed on the left side.
- 2. Optic nerve.
- 3. Third nerve, giving branches to all the muscles of the eye, except the superior oblique and abductor, and sending ciliary branches to the interior of this organ.
- 4. Fourth or pathetic nerve, arising just behind the posterior point of the optic lobe.
- 5. Fifth nerve, arising from the restiform body, and dividing into several large branches, to be distributed on the muscles and skin of the head and face; many of those given to the skin pass in filaments through openings in the bone.
