. A manual of zoology. PHYLUM CHORDATA 469 backwards over the ribs, and includes, with the coracoid, an acute angle, the coraco-scapular angle. The glenoid cavity (gl. cv) is formed in equal proportion by the two bones ; in- ternal to it the scapula is produced into an acromion process. In front of the coracoids is a slender V-shaped bone, the furcula (fur) or " merrythought," the apex of which nearly reaches the sternum, while each of its extremities is attached by ligament to the acromion and acro-coracoid processes of the corresponding side in such a way that a large aper- ture, t
. A manual of zoology. PHYLUM CHORDATA 469 backwards over the ribs, and includes, with the coracoid, an acute angle, the coraco-scapular angle. The glenoid cavity (gl. cv) is formed in equal proportion by the two bones ; in- ternal to it the scapula is produced into an acromion process. In front of the coracoids is a slender V-shaped bone, the furcula (fur) or " merrythought," the apex of which nearly reaches the sternum, while each of its extremities is attached by ligament to the acromion and acro-coracoid processes of the corresponding side in such a way that a large aper- ture, the foramen triosseum (f /rs) is left between the three bones of the shoulder- girdle. The furcula is a mem- brane bone and represents fused clavicles and inter- clavicle. Equally characteristic is the skeleton of the fore-limb. The humerus (Fig. 281, hit) is a large, strong bone, with a greatly expanded head and a prominent ridge for the in- Left manus .â f>,i __ . 1 .ââl_ of a nestling. The cartilaginous sertion OS the pectoral muscle. The radius (ra) is slender and nearly straight, the ulna stouter and gently curved. There are two large free car- pals, a radiate (ra') and an ulnare (u/1), and articulating with these is a bone called the carpo-metacarpus (cp. nitcp), consisting of two rods, that on the preaxial side strong and nearly straight, that on the postaxial side slender and curved, fused with one another at both their proximal and distal. parLs are dotted. cp. I, radiak cp. 2, ulnare; mcp. I. 2,3, meta- carpals; ph. 1, phalanx of first digit; ph. 2', phalanges of second digit; ph. 3, phalanx of third digit; ra, radius; rtl, ulna. (From Parker's Zootomy.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Parker, T. Jeffery (Thomas Jeffery), 1850-1897; Haswell, Willi
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyo, bookyear1900
