. Anatomy of the wood rat; comparative anatomy of the subgenera of the American wood rat (genus Neotoma). Wood rats; Mammals -- Anatomy; Rats -- anatomy & histology; Microtinae -- anatomy & histology. 28 ANATOMY OF THE WOOD RAT ental surface of this aponeurosis. Insertion is upon both the lateral and medial surfaces of the ventral border of the angular process. In Neotoma this division is a trifle broader in its anterior portion. In Teonoma the cranial border extends shghtly farther forward, and the insertional portion extends farther mediad. Pars zygomaticus (figs. 5, 6, 7, 23, 24, 25
. Anatomy of the wood rat; comparative anatomy of the subgenera of the American wood rat (genus Neotoma). Wood rats; Mammals -- Anatomy; Rats -- anatomy & histology; Microtinae -- anatomy & histology. 28 ANATOMY OF THE WOOD RAT ental surface of this aponeurosis. Insertion is upon both the lateral and medial surfaces of the ventral border of the angular process. In Neotoma this division is a trifle broader in its anterior portion. In Teonoma the cranial border extends shghtly farther forward, and the insertional portion extends farther mediad. Pars zygomaticus (figs. 5, 6, 7, 23, 24, 25) whose deeper cranial borders blend somewhat with the adjoining ones I. ?)' PRROTID DUCT Fig. 5. Head of Homodontomys, showing the more superficial glands and certain muscles. (Ear cartilage cut.) of the next part (major), have origin from the ventro- lateral border of that portion of the zygomatic arch which lies caudad to the masseter major. It is inserted upon the whole of the angular process of the mandible save its extreme ventral border. Pars major (figs. 5, 6, 7, 23, 24, 25) arises by three heads—the (a) ectal, (6) ental and (c) infraorbital. (a) The ectal head arises upon the superior portion of the septum and anterior border of the maxillary root of the zygomatic arch, extending caudad to within a couple of millimeters of the jugal. Insertion is upon the mas- seteric ridge of 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 Howell, A. Brazier (Alfred Brazier), 1886-. Baltimore, The Williams & Wilkins Company
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Keywords: ., bookc, bookcentury1900, bookdecade1920, booksubjectmammalsanatomy
