A text-book of first aid and emergency treatment . THE BLOOD AND CIRCULATION 47 the heart. The largest artery, the aorta, gives oft branchessoon after it leaves the heart, which pass up on each side ofthe neck to supply the corresponding sides of the neck andhead. A little farther along a large artery is given oft to. Fig. 16.—Showing the deep arteries of the forearm. (Gerrish.) 48 . ANATOMY AND PHYSIOLOGY .siii)i)ly eacli ii])i)er cxtroniity. These large arteries passdown each arm, giving off smaller branches to supply theshoulder and arm, to the elbow, where they divide into twoarteries, the
A text-book of first aid and emergency treatment . THE BLOOD AND CIRCULATION 47 the heart. The largest artery, the aorta, gives oft branchessoon after it leaves the heart, which pass up on each side ofthe neck to supply the corresponding sides of the neck andhead. A little farther along a large artery is given oft to. Fig. 16.—Showing the deep arteries of the forearm. (Gerrish.) 48 . ANATOMY AND PHYSIOLOGY .siii)i)ly eacli ii])i)er cxtroniity. These large arteries passdown each arm, giving off smaller branches to supply theshoulder and arm, to the elbow, where they divide into twoarteries, the radial and the ulna. It is the radial arterywhich can be felt pulsating at the wrist. After the aorta has gi\en oft the large branches to thehead and arms it passes downward through the chest tothe abdomen, where it divides into two large branches,which i^ass to the two lower extremities. In the chest andabdomen the aorta and its large su])(li\isions gi^e oft largeand small branches to supply the chest and the abdf) the thigh the single large artery passes downward toabout the region of the knee, where it divides into twosmaller arteries. The arteries usually run deeply situated in the tissues,but in a few pl,aces they may be fairly close to the close to the skin or under observation in a wo
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