The tibia, also known as the shin, is one of two bones in the lower leg of vertebrate animals. The tibia is the inner and larger bone, while the fibula is the outer bone of the lower leg. The tibia forms the knee joint’s lower half in humans. It is attached to the fibula by interosseous membrane. The lower end of the tibia features a medial extension that forms part of the ankle joint.
Summary: What is the Tibia in Animals?
Humans and vertebrate animals share similar bone structure from the hip down. There is a thigh bone, a forward-facing knee cap, and shin bone, which consists of the tibia and fibula. Just like in humans, an animal’s tibia is one of two bone in the lower leg. The tibia supports the weight of the animal, making it appear stout.
What is the Function of the Tibia?
The tibia is the second-largest bone in the body and its primary function is to bear weight. This large bone takes on the majority of the weight load when an animal or human stands, walks, runs, etc. It accepts and distributes weight evenly across the knee and the ankle. The tibia plays an essential role in how humans and animals stand, move, and keep their balance. They are the strongest long bones because they support the rest of the body.
What Animals Have Tibias?
Vertebrate animals have tibia bones, including mammals, fish, amphibians, and reptiles. They vary in size and function depending on the animal.