. Anatomy, descriptive and applied. Anatomy. 594 THE VASCULAR 8YSTEMS The inferior labial coronary (Figs. 438 and 439) is derived from the facial artery, near the angle of the mouth; it passes upward and inward beneath the Depressor anguli oris, and, penetrating the Orbicularis oris muscle, runs in a tortuous course along the edge of the lower lip between this muscle and the mucous membrane, anastomoses with the artery of the opposite side. This artery supplies the labial glands, the mucous membrane, and muscles of the lower lip, and anastomoses with the inferior labial from the facial and the
. Anatomy, descriptive and applied. Anatomy. 594 THE VASCULAR 8YSTEMS The inferior labial coronary (Figs. 438 and 439) is derived from the facial artery, near the angle of the mouth; it passes upward and inward beneath the Depressor anguli oris, and, penetrating the Orbicularis oris muscle, runs in a tortuous course along the edge of the lower lip between this muscle and the mucous membrane, anastomoses with the artery of the opposite side. This artery supplies the labial glands, the mucous membrane, and muscles of the lower lip, and anastomoses with the inferior labial from the facial and the mental branch of the inferior dental artery. The superior labial coronary (a. labialis superior) (Figs. 438 and 439) is larger and more tortuous in its course than the preceding. It follows the same course along the edge of the upper lip, lying between the mucous membrane and the Orbicu- laris oris, and anastomoses with the artery of the opposite side. It supplies the tissues of the upper lip, and gives off in its course two or three vessels which ascend to the nose. One, named the inferior artery of the septum, ramifies on the septum of the nostrils as far as the point of the nose; another, the artery of the ala, supplies the ala of the nose. The lateralis nasi is derived from the facial, as that vessel is ascending along the side of the nose; it supplies the ala and dorsum of the nose, anastomosing with its fellow, the nasal branch of the ophthalmic, the inferior artery of the septum, the artery of the ala, and the Fig. —The labial coronary arteries, the glands of the lips, posterior surface after removal of the mucous m( serves of the right side seen from the (Poirier and Charpy.) The angular artery (a. annularis) is the termination of the trunk of the facial; it ascends to the inner angle of the orbit, embedded in the fibres of the Levator Jabii superioris alaeque nasi, and accompanied by a large vein, the angular vein; it distributes some branches on
Size: 2053px × 1217px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1913
