A manual of operative surgery . y felt. The facial vein is behind theartery, and very close to it. The needle should be passed from behindforwards. A vertical incision in the course of the artery has been advised ;but it exposes the vessel in a less convenient manner, and leaves amore conspicuous scar. The Temporal Artery may be secured just in front of themeatus, as the vessel leaves the parotid gland. An incision oneinch in length is made vertically, over the course of the vessel, be-tween the tragus and the condyle of the jaw. The artery is ligatured 392 OPERATIONS ON ARTERIES [PART V just
A manual of operative surgery . y felt. The facial vein is behind theartery, and very close to it. The needle should be passed from behindforwards. A vertical incision in the course of the artery has been advised ;but it exposes the vessel in a less convenient manner, and leaves amore conspicuous scar. The Temporal Artery may be secured just in front of themeatus, as the vessel leaves the parotid gland. An incision oneinch in length is made vertically, over the course of the vessel, be-tween the tragus and the condyle of the jaw. The artery is ligatured 392 OPERATIONS ON ARTERIES [PART V just above the root of the zygoma (Fig. 331). It is here covered by theskin and a dense fascia. A single large vein accompanies it, lyingbehind the artery and overlapping it. The vessel is crossed by branchesof the temporo-facial division of the facial nerve, and lies over andbehind the auriculo-temporal nerve. The needle is passed from behindforwards. The temporal bifurcates about one inch and a quarter abovethe root of the FIG. 331.—SHOWING THE POSITION OF THE FACIAL, TEMPORAL, AND OCCIPITAL arteries. {Modifiedfrom Merkel.) The Occipital Artery has been ligatured close to its origin,and also in that part of its course which lies beyond the mastoidprocess (Fig. 331). In the first position it is reached by an incisionsimilar to that employed for exposing the external carotid (Fig. 329).That vessel is made evident, and the hypoglossal nerve, which windsround the occipital, is demonstrated. In the second position a nearly horizontal incision, two inchesin length, is made, which, commencing about the tip of the mastoid chap, in] LIGATURE OF THE OCCIPITAL 393 process, is carried backwards and a little upwards. The skin andfascia having been divided, the muscles are exposed. The posteriorfibres of the sterno-mastoid must be divided ; the splenius is thencut, and so much of the tracheo-mastoid as may be necessary. Thesurgeon now feels for the interval between the mastoid proces
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