. The anatomy of the domestic animals . Veterinary anatomy. THE TRIGEMINAL NEKVE 799 the pterygoideus medialis and the guttural pouch, and on reaching the lateral surface of the pterygoideus lateralis, it divides into two terminal branches—the inferior alveolar and lingual nerves. It gives "off the following branches: 1. The masseteric nerve (N. massetericus) (Figs. 562, 646) passes outward through the sigmoid notch of the mandible across the anterior surface of the tem- poro-mandibular articulation and enters the deep face of the masseter muscle, in which it ramifies. 2. The deep tempora
. The anatomy of the domestic animals . Veterinary anatomy. THE TRIGEMINAL NEKVE 799 the pterygoideus medialis and the guttural pouch, and on reaching the lateral surface of the pterygoideus lateralis, it divides into two terminal branches—the inferior alveolar and lingual nerves. It gives "off the following branches: 1. The masseteric nerve (N. massetericus) (Figs. 562, 646) passes outward through the sigmoid notch of the mandible across the anterior surface of the tem- poro-mandibular articulation and enters the deep face of the masseter muscle, in which it ramifies. 2. The deep temporal nerves (Nn. temporales profundi) (Fig. 562), two or three in number, arise from, or by a common trunk with, the masseteric. They supply the temporalis muscle. 3. The buccinator nerve (N. buccinatorius) passes downward and forward at first across the medial surface of the temporo-mandibular articulation, then through the anterior part of the lateral pterygoid muscle, then between the bucci-. Fig. 647.—Deep Dissection of Base of Cranium, Viewed from the Right and Below. The tympanic cavity is opened and the paramastoid process is sawn off. a, Occipital condyle; ^, body of sphenoid; c, external acoustic meatus (part removed); rf, malleus; e, incus; i, stump of ophthalmic nerve; ^, stump of maxillary nerve; 5, sphenopalatine plexus: 4. nerve of pterygoid canal; 4'. deep petrosal nerve; A", branch to tympanic plexus; 4'", superficial petrosal nerve; 5, superficial temporal nerve (cut off); 6, masseteric nerve (cut off); 7, mandibular nerve (raised); 5, lingual nerve (cut off); 9, pterygoid nerve (cut); 10, nerve to tensor tympani; 11, otic ganglion; , facial nerve; 75, stapedial nerve; ?4, chorda tympani; iJ, glosso-pharyngeal nerve (cut); J^, tympanic nerve; 17, vagus (cut off); 18, auricular branch of vagus: 19, spinal accessory nerve (cut off); ZO, hypoglossal nerve (cut off; 21, sympathetic nerve (cut off); 22, internal carotid artery. (After Ellenberger, in L
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherphiladelphialondon
