This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Thorax, Subject name: Anatomy
[{'content': 'A "Potential Anastomosis" seen in \nSelect and explain. \nA. Labial branch of facial aery, B. Intercostal aery, C. Coronary aery, D. Aerial arcades of mesentery', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Aerial anastomosis is the communication between the aeries, or branches of aeries. It may be actual or potential. Actual Aerial Anastomosis: In actual aerial anastomosis the aeries meet end to end. For example, palmar arches, plantar arch, circle of Willis, intestinal arcades, labial branches of facial aeries. Potential Aerial Anastomosis: In potential aerial anastomosis the communication takes place between the terminal aerioles. Such communications can dilate only gradually for collateral circulation. Therefore on sudden occlusion of a main aery, the anastomosis may fail to compensate the loss. The examples are seen in the coronary aeries and the coical branches of cerebral aeries. Ref - Medscape.com', 'role': 'assistant'}]