Human and comparative anatomy, physiology, and hygiene . brace in keeping backthe shoulders. (Figs. 72, 85, 98.) Q. Describe the clavicle. What is its use 1 Fig. 73. Fig. 74. Fig. 73. The shaft of the humerus. Fig. 74. 1. The body of the ulna. 2. The shaft of the radius. 244. In birds the clavicle is large and strong ; whilein fourfooted animals, as the horse, it is wanting. Q. What is said of the clavicle in birds 1 In the horse andother fourfooted animals? 245. The arm is composed of three bones — the hu- 100 ANATOMY, PHYSIOLOGY, AND HYGIENE. me-rus, above the elbow, and the radi-us and ulna
Human and comparative anatomy, physiology, and hygiene . brace in keeping backthe shoulders. (Figs. 72, 85, 98.) Q. Describe the clavicle. What is its use 1 Fig. 73. Fig. 74. Fig. 73. The shaft of the humerus. Fig. 74. 1. The body of the ulna. 2. The shaft of the radius. 244. In birds the clavicle is large and strong ; whilein fourfooted animals, as the horse, it is wanting. Q. What is said of the clavicle in birds 1 In the horse andother fourfooted animals? 245. The arm is composed of three bones — the hu- 100 ANATOMY, PHYSIOLOGY, AND HYGIENE. me-rus, above the elbow, and the radi-us and ulna, belowthe elbow. By a nice adaptation of the bones below theelbow, they can rotate or twist upon each other. (, 74, 85, 98.) Q. What is said of the bone above the elbow ? Of the bonesbelow the elbow ? 246. In the lower animals, as the horse and ox, thereis but one bone that corresponds with tbe radius andulna; this is large and firm. Q. What is said of the bones that correspond with the ulnaand radius in the lower animals ? Fiir. 7: Fin;. Fig. 75. u. The ulna. k. The radius, s, l, c, p, t, t, m, u. Thocarpal bones. 1, 1, 1, 1, 1. The metacarpal bones of the thumb andfingers. Fig. 76. 10, 10, 10. The metacarpal bones of the hand. 11, 11. Firstrange of finger bones. 12, 12. Second range of finger bones. 13, 13-Third range of finger bones. 14, 15. Bones of the thumb. 247. The wrist (carpus) consists of eight irregularbones. They are closely bound together, and have butlittle motion. Sb, 98.) THE UPPER EXTREMITIES. 101 Q. What is said of the wrist ? 248. The hand (metacarpus) has five bones. Tothese are united the fourteen bones of the fingers andthumbs, (pha-langes.) (Figs. 75, 76, 85, 98.) Q. Describe the hand. 249. In the inferior animals there are but one, or atmost two bones that correspond with the fingers of are only used to support the animals. Q. What is said of the finger bones in animals ? 250. The bones of the fingers and thumb are so
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectanatomycomparative
