Bone depressions are indentations in the surface of bones that serve a variety of functions. Fosseae are shallow, broad depressions found on the surface of bones, while foveae are deeper and narrower depressions. Fosseae are typically found on the head of long bones, while foveae are usually found on the shafts of long bones. Both types of depressions provide attachment points for muscles, ligaments, and tendons.