. The anatomy of the domestic animals. Veterinary anatomy. 646 BLOOD-VASCULAR SYSTEM OF THE HORSE panum, forms an arch around the nioni})rana tynipani, and supplies the middle ear and its muscles. THE SUPERFICIAL TEMPORAL ARTERY This artery (A. temporalis supcrficialis) is niueh the smaller of the two terminal branches of the external carotid, and is usually less than an inch (ca. 2 cm.) in length. It passes upward behind the posterior border of the ramus of the mandible, under cover of the parotid gland, and divides below the level of the condyle into the anterior auricular and trans- verse f
. The anatomy of the domestic animals. Veterinary anatomy. 646 BLOOD-VASCULAR SYSTEM OF THE HORSE panum, forms an arch around the nioni})rana tynipani, and supplies the middle ear and its muscles. THE SUPERFICIAL TEMPORAL ARTERY This artery (A. temporalis supcrficialis) is niueh the smaller of the two terminal branches of the external carotid, and is usually less than an inch (ca. 2 cm.) in length. It passes upward behind the posterior border of the ramus of the mandible, under cover of the parotid gland, and divides below the level of the condyle into the anterior auricular and trans- verse facial arteries. It is crossed super- ficially Ij}' the facial nerve. The anterior auricular artery (A. auricularis anterior) ascenils behind the temporo-mandibular articulation under cover of the parotid gland and reaches the temporalis muscle. It is crossed deeply at its origin by the superficial temporal nerve and is accompanied by a satellite vein and the auriculo-palpe- ])ral branch of the facial nerve. It is distributed to the skin and the temporal and anterior auricular muscles, and sends a liranch through the concha! cartilage to the skin which lines it. Collateral twigs are detached to the parotid gland, and an anterior branch anastomoses with the supraorbital artery. A branch some- times passes into the temporal canal and anastomoses with the posterior meningeal artery. The transverse facial artery (A. transversa faciei) is larger than the pre- ceding. It turns around the neck of the mandible and emerges from beneath the parotid gland (Fig. 560). It then passes forwartl a short distance on the masseter about half an inch below the zj'gomatic arch, and enters the muscle, in which it commonly tlivides into two chief branches. It is accompanied by a vein and a branch of the superficial tem- poral nerve. It su]i])lics the masseter and the skin of this region, and anastomoses with the external niaxillaiy and jiusterior deep temporal Fig. 563.—Right Eye of Horse
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Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectveterinaryanatomy
