. The cat : an introduction to the study of backboned animals, especially mammals. Cats; Anatomy, Comparative. CHAP. IV.] TEE SKELETON OF THE LIMBS. 93 is placed on the inner side of the bicipital groove. Both tuberosities serve for muscular attachments. The lower end of the humerus expands considerably, having a lateral prominence termed a condyle, on each eide, but the internal condyle (ci) pro- jects further inwards than does the external condyle (ce) outwards. Between these projections is placed the lower articular surface for the bones of the forearm. This is irregularly concave and conve
. The cat : an introduction to the study of backboned animals, especially mammals. Cats; Anatomy, Comparative. CHAP. IV.] TEE SKELETON OF THE LIMBS. 93 is placed on the inner side of the bicipital groove. Both tuberosities serve for muscular attachments. The lower end of the humerus expands considerably, having a lateral prominence termed a condyle, on each eide, but the internal condyle (ci) pro- jects further inwards than does the external condyle (ce) outwards. Between these projections is placed the lower articular surface for the bones of the forearm. This is irregularly concave and convex. At its outer part is a rounded prominence (convex transversely as well as from before backwards) called the capitellum (c), which joins the outer bone of the fore-arm or radius. Internal to this is a pulley-like trans- versely concave surface (a), the trochlea, which joins the inner bone of the fore-arm or ulna. The groove of this " pulley " ex- tends completely round from the anterior to the posterior surface of the humerus. The capitellum and the trochlea run one into the other without any distinct demarcation. There is a shallow cavity in front of the humerus immediately above the trochlea. This is called the coronoid fossa, because it receives the coronoid process of the ulna. There is another much deeper fossa (o), also above the trochlea, but on the hinder surface of the humerus. This is called the olecranal or anconeal fossa, from the part of the ulna which it receives when the fore-leg is straightened. The inner margin of the distal articular surface of the humerus (t), descends much below its external margin. § 4. The radius (which is slightly shorter than the humerus) is also a long cylindrical bone, expanded more or less at each end, and flattened en that side which is behind when the fore-leg is so placed that the paw rests on the ground. At its place of attachment above, it is the external bone of the fore-arm. The long middle part of the bone, or sha
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectanatomy, bookyear1881
