. Chordate morphology. Morphology (Animals); Chordata. pituitary X-XI medulla oblongata. olfactory nerve chorioid plexus in cerebral ventricle paraphysis supracommissure pineal body posterior commissure midbrain cerebellum endolymphatic sac "1st spinal nerve B Figure 13-6. The brain and cranial nerve roots of Necfurus. A, dorsal view; B, ventral view; C, medial view of rigtit half. (In part after McKibbin, 1913) rans. This branch, along with buccal and mental branches, serve the sensory lines. The superficial ophthalmic branch of the trigeminal is small or lacking. These branches are comp
. Chordate morphology. Morphology (Animals); Chordata. pituitary X-XI medulla oblongata. olfactory nerve chorioid plexus in cerebral ventricle paraphysis supracommissure pineal body posterior commissure midbrain cerebellum endolymphatic sac "1st spinal nerve B Figure 13-6. The brain and cranial nerve roots of Necfurus. A, dorsal view; B, ventral view; C, medial view of rigtit half. (In part after McKibbin, 1913) rans. This branch, along with buccal and mental branches, serve the sensory lines. The superficial ophthalmic branch of the trigeminal is small or lacking. These branches are comparable to those observed in the fishes and are lacking in the amniotes. Sensory-line branches of the ninth and tenth nerves are also present. In the mammals, birds, reptiles, and anurans, the trunk of the seventh nerve passes back above the stapes and then down behind that bone. The internal mandibular branch, the chorda tympani. passes forward above the stapes (or columella) and then down to the mandible in all of these except the anurans in which it passes forward below this bone. In the urodeles the seventh nerve root passes below the stapes in most salamanders and Cryptubranchus (Figure pineal body epidermis-' " ' Jl '' '-, "l" bone pineal nerve paraphysis soccus dorsalis habenular commissure foramen of Monroe pallial commissure anterior commissure cavities of epiphysis (pineal) optic lobe posterior commissure (dashed outline) subcommissural organ trochlear chiosmo cerebellum chorioid plexus. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Jollie, Malcolm. New York, Reinhold
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