## **Core Concept**
The nutrient artery of the fibula is a branch that supplies blood to the bone. It typically arises from a major artery that supplies the lower limb. Understanding the origin of the nutrient artery is essential for knowledge of bone vascularization.
## **Why the Correct Answer is Right**
The nutrient artery to the fibula arises from the **peroneal artery**, which is a branch of the posterior tibial artery. The peroneal artery runs down the posterior aspect of the fibula and gives off the nutrient artery, which then penetrates the bone to supply the endosteal surface. This vascular supply is crucial for bone growth and healing.
## **Why Each Wrong Option is Incorrect**
- **Option A:** The anterior tibial artery primarily supplies the anterior compartment of the leg and does not give rise to the nutrient artery of the fibula.
- **Option B:** While the posterior tibial artery is the parent artery of the peroneal artery, it does not directly give rise to the nutrient artery of the fibula.
- **Option D:** There is no common "nutrient artery" directly branching from the dorsalis pedis or directly related to the choices given that supplies the fibula.
## **Clinical Pearl / High-Yield Fact**
A key point to remember is that the nutrient arteries of long bones, including the fibula, usually enter the bone on its posterior or posterolateral aspect. Knowledge of the vascular supply of bones is crucial in orthopedic surgery and fracture management.
## **Correct Answer:** C. Peroneal artery.
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