Elements of animal physiology, chiefly human . thehand is joinedby the bonesof the ivrist :its upper endarticulateswith the hum-erus. (Seefigs. 16, 17.) 77. The Car-pal Bones con-Fig. 17. Bones of the Wrist and Hand. sist of the eight bones which, arranged in two rows of four each, andunited by means of ligaments, form the carjous or wrist. 78. The Metacarpal Bones are the five small pris-moidal bones which form the palm of the hand. Theyare united to the Jirst row of the phalanges of the fingersby/irn^e joints. (See fig. 17.) 79. The Phalanges of the Hand are the fourteen pris-moidal bones of
Elements of animal physiology, chiefly human . thehand is joinedby the bonesof the ivrist :its upper endarticulateswith the hum-erus. (Seefigs. 16, 17.) 77. The Car-pal Bones con-Fig. 17. Bones of the Wrist and Hand. sist of the eight bones which, arranged in two rows of four each, andunited by means of ligaments, form the carjous or wrist. 78. The Metacarpal Bones are the five small pris-moidal bones which form the palm of the hand. Theyare united to the Jirst row of the phalanges of the fingersby/irn^e joints. (See fig. 17.) 79. The Phalanges of the Hand are the fourteen pris-moidal bones of the fingers. They are articulated, threeto each finger, except the thumb, which only containstwo phalanges, by means of/wn^e joints. (See fig. 17.) 80. The Lower Extremities, including the thigh, leg,and foot, comprise (excluding the sesamoid bones andtwo patellce) twenty-nine bones in each limh, viz.:—TheOS femoris {femur or thigh bone) tibia, fibula, the seventarsal bones, the five metatarsal bones, and the fourteenphalanges of the THE TARSAL BONES. 45 Pit for attachment ofLigamentum Teres. Lesser Trochaaten Shaft. 81. The Os Femoris (from , the thigh) is thelargest and strongest bone in the skeleton. At the topof its large globu- lar head is a de-Great Trochanter. pression, in -whichis inserted the endof the ligamentumteres, one of theligaments by whichit is retained inthe acetabulu77i. 82. The Tibia(Lat. a flute), or67w?z-6a?2e,originallyso called from itssupposed resem-blance to an ancientmusical pipe, is thelong prismoidalvertical bone whichforms the/ron^ andinner side of thelower leg. Afterthe OS femoris, it is the largest bone inO^ter Tuberosity the body. Its head articulates by a hinge joint with T^yo condyles. the femur. Its ^^S- 18. The Eight Femur. lower extremity articulates with the astragalus (one of the tarsal bones). (See fig. 19.) 83. The Fibula (Lat. a buckle), or splint-lone, is thelong slender outer bone of the leg. It is parallel
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