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: Anatomy
[{'content': 'Which of the following structure helps in maintaining the centralized location of the spinal cord in the subarachnoid space? \nSelect and explain. \nA. Filum terminale, B. Cerebrospinal fluid, C. Denticulate ligament, D. All of the above', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Denticulate ligaments are lateral extensions of the pia mater which attaches to the arachnoid and dura mater. It helps in maintaining the centralized location of the spinal cord in the subarachnoid space. These ligaments are found between the ventral and dorsal roots, and project through the arachnoid mater in order to attach to the dura mater in a series of sawtooth projections. Filum terminale is an extension of the pia mater beyond the tip of the spinal cord which attaches to the coccyx in the veebral canal. Ref: Moon D.A., Foreman K.B., Albeine K.H. (2011). Chapter 1. Back.', 'role': 'assistant'}]