Gross anatomy of skeleton antebrachii of a tiger (Panthera tigris)

Gross anatomical features of the skeleton of forearm of an adult tiger revealed that the ulna was longer and more massive than the radius and was the longest bone of the forelimb. The oval caput radii showed concave fovea capitis radii for humerus and a convex articular circumference for ulna. Radial tuberosity was situated ventrolateral to the caput. A transverse crest extended obliquely from the radial tuberosity ventromedially along the caudal surface of the radius. The olecranon tuberosity of ulna was grooved and presented three prominences of which the caudal one was large and rounded. The shaft of ulna presented a rough, elevated margointer osseus along the cranial surface. The spatium interosseum was wide. The radius and ulna were not fused allowing pronation and supination movements to clutch the prey with the powerful forelimbs.