OSMT (Ontario Society of Medical Technologists) Practice Exam

Which term refers to the larger of the two lower leg bones?

1. tibia

2. fibula

3. ulna

4. condoyle

The correct answer is: tibia

The term that refers to the larger of the two lower leg bones is the tibia. The tibia, often called the shinbone, is known for being the weight-bearing bone of the lower leg, providing structural support and stability while walking, running, and bearing weight. It is positioned medially in relation to the fibula, which is the thinner bone that runs parallel to it. In contrast, the fibula serves primarily as an attachment site for muscles and does not bear as much weight, explaining the difference in their size and function. The ulna is not related to the lower leg; it is one of the two bones in the forearm. The term condoyle refers to a round prominence at the end of a bone, typically involved in joint formation, and is not relevant to the description of lower leg bones. Understanding this distinction is important for recognizing the anatomy and function of these structures in the human body.