An introduction to the osteology of the Mammalia : being the substance of the course of lectures delivered at the Royal college of surgeons of England in 1870 / By William Henry Flower.

Flower, William Henry, 1831-1899.

Date:: 1870

Credit: An introduction to the osteology of the Mammalia : being the substance of the course of lectures delivered at the Royal college of surgeons of England in 1870 / By William Henry Flower. Source: Wellcome Collection.

Provider: This material has been provided by The University of Leeds Library. The original may be consulted at The University of Leeds Library.

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$as great {t) and small (/') from their relative size in Man and most Mammals ; the former is also called external, and the latter internal., from their relative situation in the most usual position of the bone; radial and ulnar are also terms applied to them in relation to their situation, one on the side of the humerus with which the radius, and the other on the side with which the ulna, is connected below. Fig. 8r.—Anterior surfiicc of riglit humerus of Wombat (^Phascolsmys vomhaim), i. h head ; Aj^bicipital groove ; i great or radial tuberosity ; t' small or ulnar tuberosity ; dr deltoid ridge ; sr supinator ridge ; r/supra-condylar foramen ; cc external con- dyle ; ic internal condyle ; ar articular surface for radius ; au articular surface for uhia. The lower or distal extremity of the humerus is some- what flattened, and usually has a broad, semi-cylindrical articular surface, which is received into a corresponding concavity on the upper end of the bones of the fore-arm. This is called tlie trochlea {ar and au). On each side, and rather above this surface, is a prominence called the condyle, one of which is external., or radial (ec), the other internal, or nlnar {ic). The latter is usually the most prominent. In$