This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Which of the following is the aerial supply to anterior cruciate ligament 
Select and explain. 
A. Fibular head aery, B. Descending genicular aery, C. Superior genicular aery, D. Middle genicular aery
D: Middle genicular aery
Answer: D: Middle genicular aery 
Explanation: Middle genicular aery -Middle genicular aery is a branch of popliteal aery and supplies the cruciate ligaments & the synol membrane of knee joint. -lt reaches the interior of knee by piercing the oblique popliteal ligament of the knee. -Fibular head aery (A) is the circumflex fibular branch given by the posterior tibial aery, which contributes towards the anastomosis around the knee joint. -Descending genicular aery (B) is a branch of femoral aery and also contributes to the knee joint anastomosis. -Superior genicular aery (C) is a branch of popliteal aery and is an impoant branch in the anastomosis around the knee joint.