What is the medical term for the "shinbone"?

The medical term for the "shinbone" is the tibia.

• A. Ulna is a bone in the forearm.
• B. Tibia is the larger of the two bones in the lower leg, commonly known as the shinbone.
• C. Femur is the thigh bone.
• D. Fibula is the smaller bone in the lower leg, next to the tibia.

The correct answer is B.

$$\boxed{\text{B. Tibia}}$$