This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Head & Neck, Subject name: Anatomy
Anterior choroidal artery is a branch of: 
Select and explain. 
A. Internal carotid artery, B. Vertebral artery, C. Basilar artery, D. Maxillary artery
A: Internal carotid artery
Answer: A: Internal carotid artery 
Explanation: Ans. A. Internal carotid arteryThe anterior choroidal artery originates from the internal carotid artery.The internal carotid artery is located in the inner side of the neck in contrast to the external carotid artery. In human anatomy, they arise from the common carotid arteries where these bifurcate into the internal and arteries at cervical vertebral level 3 or 4; the internal carotid artery supplies the brain including eyes, while the external carotid nourishes other portions of the head, such as face, scalp, skull, and meninges.