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: Ophthalmology
Which of the following aery provides blood supply to lateral geniculate body? 
Select and explain. 
A. Anterior cerebral aery, B. Middle cerebral aery, C. Posterior cerebral aery, D. Posterior communicating aery
C: Posterior cerebral aery
Answer: C: Posterior cerebral aery 
Explanation: Posterior cerebral aery supplies the posteromedial aspect of the lateral geniculate body and thus nourishes the fibers coming from the superior homonymous quadrants of the retina. Anterolateral aspect of the LGB is supplied by the anterior choroidal aery, and thus it supplies the fibers coming from the inferior homonymous quadrants of the retina. The region of the hilum which contains the macular fibers is supplied by a rich anastomoses from both the posterior cerebral aeries and anterior choroidal aeries. Venous drainage of LGB is through basal vein. Ref: Textbook of Ophthalmology edited by Sunita Agarwa page 317.