. Anatomy of the woodchuck (Marmota monax). Woodchuck; Mammals. 134 Anatomy of the Woodchuck, Marmota monax. Fig. 9-6. Arteries of the brain, ventral view. 1 olfactory bulb, 2 olfactory peduncle, 3 lateral olfactory tract, 4 optic nerve, 5 optic chiasma, 6 optic tract, 7 hypophysis, 8 olfactory peduncle, 9 caudal cerebral a., 10 rostral cerebellar a., 11 basilar a., 12 caudal cerebellar a., 12a vertebral a., 12b ventral spinal a., 13 paraflocculus, 14 caudal communicating a., 15 cerebral arterial circle, 16 middle cerebral a., 17 and 18 rostral cerebral a. The vein of the upper lip, v. labiali
. Anatomy of the woodchuck (Marmota monax). Woodchuck; Mammals. 134 Anatomy of the Woodchuck, Marmota monax. Fig. 9-6. Arteries of the brain, ventral view. 1 olfactory bulb, 2 olfactory peduncle, 3 lateral olfactory tract, 4 optic nerve, 5 optic chiasma, 6 optic tract, 7 hypophysis, 8 olfactory peduncle, 9 caudal cerebral a., 10 rostral cerebellar a., 11 basilar a., 12 caudal cerebellar a., 12a vertebral a., 12b ventral spinal a., 13 paraflocculus, 14 caudal communicating a., 15 cerebral arterial circle, 16 middle cerebral a., 17 and 18 rostral cerebral a. The vein of the upper lip, v. labialis superior, drains the ventral aspect of the upper lip and the angle of the mouth. The vein of the lower lip, v. labialis inferior, drains the angle of the mouth and the lower lip. Note: The infraorbital vein drains the greater part of the upper lip. The facial vein passes caudally over the ventro- lateral surface of the masseter muscle and joins the lingual vein caudoventral to the angle of the man- dible. The lingual vein, v. lingualis (Figs. 9-5 and 9-8), drains the tongue and the floor of the mouth by means of the deep lingual and sublingual alveolar veins. It passes between the parotid and mandibular salivary glands and is closely associated with the. 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 Bezuidenhout, A. J. (Abraham Johannes), 1942-; Evans, Howard E. (Howard Edward), 1922-. Lawrence, KS : American Society of Mammalogists
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