This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Orbit, Subject name: Ophthalmology
What is ligament of lockwood related to 
Select and explain. 
A. Gall bladder, B. Scrotum, C. Orbit, D. Lens
C: Orbit
Answer: C: Orbit 
Explanation: Ans. (c) OrbitRef: Khurana Anatomy 2/e, p. 493It is a fascial expansion of the extraocular muscles formed by fusion of sheaths of MR, IR, LR, IO extending from the posterior lacrimal crest to the lateral orbital margin.