What does the scapula refer to in animal anatomy?

The scapula is commonly known as the shoulder blade in animal anatomy. It is a flat, triangular bone located on each side of the thorax that connects the humerus (the bone of the upper foreleg) to the sternum and ribs. Importantly, the scapula plays a crucial role in the limb's range of motion and stability, allowing for the attachment of muscles that facilitate movement in the forelimb.

The other options refer to different anatomical structures: the elbow joint is the connecting point between the humerus and the radius/ulna in the forelimb; the knee joint connects the femur with the lower leg bones; and the pelvis is a bony structure that supports the hind limbs and houses vital organs. Understanding the role and location of the scapula is fundamental in studying animal anatomy and the mechanics of movement in veterinary practice.