THE OPHTHALMIC ARTERY AND ITS BRANCHES

(AFTER HENLE.) ‚CT, the internal carotid; OF, the ophthalmic; Z, he lacryrsal; 80, the supra-rbital NF, the naso-frontal; #4, the’ anterior ethmoidal; ÆP, the posterior ethmoidal; # frontal; }, the nasal; PALS, the arteria palpebral is lateral is superior; PBLI, the arteris palpebrails lateral is Inferior; PHMI, the aréria palpebralls medial is inferior 5 PMS, the arteria palpebral is medial i a superior; (”, the long ciliary arteries; CX, the central retinal. ophthalmic a, Fr., artére ophthalmique. Ger., Augenarterie. Sp., arteria oftälmica. A branch from the internal carotid a. on the inner side of the anterior clinoid proce , which enters the orbit through the optic foramen, below and on the outer side of the optic nerve. It pa es acro the optic nerve and then forward, beneath the lower border of the superior oblique muscle, to the inner angle of the eye, where it divides into the frontal and the nasal arteries. Its branches are divided into those distributed to the orbit and surrounding parts and those which supply the muscles and globe of the eye. Its orbital branches are the lacrymal, supra-orbital, anterior and posterior ethmoidal, inferior and superior palpebral, frontal, and nasal arteries. The ocular branches are the anterior short and long ciliary arteries, the central retinal a., and branches to the ocular muscles. [L, 142, 172.|—Orbital a. A small a. arising from either the superficial or middle temporal a., which runs forward acro the zygoma to supply the outer portion of the orbicularis palpebra rum muscle and the integument. {L, 142.|—Outer dorsal a. of the thumb. Lat., arteria pollicis ulnar is dorsal is. Fr., artére cubito-dorsale du pouce. A branch of the radial a. running on the radial side of the dorsal aspect of the thumb. [L, 7, 142.]— Ovarian a. Lat., arteria ovarii. Fr., artére ovarienne. A branch of the abdominal aorta of the female which corresponds to the internal spermatic a. of the male, It runs downward upon the Fro muscle as far as the margin of the pelvis, where it inclines inward between the layers of the broad ligament to the attached margin of the ovary, which it supplies. It sends off a branch which accompanies the round ligament into the inguinal canal, a second along the oviduct, and a third which anastomoses with the uterine a. 142.]—Palatine arteries. See Anterior, Superior, and Inferior palatine a.—Palato-labial a. See Facial a. and Superior palatine a.—Palato-maxillary a. See Superior palatine a—Paimar digital arteries. Lat., arteriæ digit a les volares. THE PALMAR ARCHES. (APTER HENLE.) F, the rallal artery; U: the nlaars MV, the superficial volar; MVS the arterin meta volar is ulnar is sublimia; MVP, the’ arteria metacarpes volarie radlalle pro fund a ‘WP the arteria meta car pen volatis uluaris pro fund a; DC, DC2, DC3, the palmar dig i arteries; IMV 1, IMV3, IMV 3, the palmar Intero eous arteries; IMV*, one of the poster lor perforating arteries; DV, the collateral digital arteries. Fr., artères digit a les pal maires. Ger., Hohlhandfingerpulsadern. Branches, usually four in number, from the convex surface of the superficial palmar arch, which are distributed to both sides of the three inner fingers and the ulnar side of the index finger. The first is distributed to the ulnar side of the little finger; the three others -run down in the inter metacarpal hee to the roots of the fingers, where they divide into the collateral digital arteries. [L, 142.]—Palmar intero eous arteries. Lat., arteriæ intero eæ volares, Fr., artéres métacarpiennes paimaires. Ger., Hohlhandmittelhandpulsadern. Branches, usually three in number, which arise from the deep palmar arch, run down upon the intero eous muscles. and at the roots of the fingers inosculate with the palmar digital arteries. They also supply branches to the deep structures of the palm of the hand. [L, 142.|—Palpebral arteries. See Superior and Inferior palpebral a, and External and Internal palpebral arteries.—Pancreatico-dnodenal a. Lat., arteria duodenal is in- Serie A branch of the hepatic a., distributed to the adjacent margins of the pancreas and the duodenum. [L,172.] See also Superior pancreatico-duodenal a.—Parietal a. A branch of the occipital a, (1st def.) which pierces the parietal bone and ramifies over the superior longitudinal sinus. [L, 45.|—Parieto-sphenoidal a. A branch of the middle cerebral a. distributed to the inferior parietal lobule, the angular gyrus, and the upper part of the cortex of the sphenoidal lobe. {L, 189.]—Pedal a. t., arteria pediaca. Fr., artère pédieuse. Dorsal a. of the foot.—Perforating arteries of the hand. Branches of the deep palmar arch which pa backward between the heads of the last three dorsal intero eous muscles to inosculate with the dorsal intero eous arteries. [L, 172.]— Per i cephalic a. See External carotid a.—Perineal a. Lat., arteria per inæalis. A term used by some anatomists for the superficial perineal a. or for the trunk trom which the superficial and [L.] See also A. of the penis, transverse perineal arteries arise.