What is the anatomical term for the collection of bones in the dog's hind leg that forms the joint between the second thigh and the metatarsus?

The hock is the anatomical term used to describe the joint that is located in a dog's hind leg, specifically between the second thigh (femur) and the metatarsus. It corresponds to what is known as the ankle in humans, allowing for movement and flexibility in the leg. The hock comprises several bones, including the tibia, fibula, and a series of smaller tarsal bones, which work together to facilitate motion and support the weight of the animal during activities such as walking and running. Understanding this terminology is crucial for accurately discussing canine anatomy, especially when it comes to injuries, conditions, or treatments related to mobility in dogs.

The other terms listed refer to distinct anatomical features: the tarsus encompasses the entire collection of bones in the area, the carpus pertains to the joint in the front leg (equivalent to the human wrist), and the metatarsus refers specifically to the bones in the foot beyond the tarsus.