Leptomeninges is formed by:

Ans. B Arachnoid and pia materRef: Netter's Clinical Anatomy, 3rd ed. pg. 25* Meninx implies all three layers--dura, arachnoid and inner pia matter.* The dura mater is called pachymeninx.* The middle arachnoid and inner pia matter is called as leptomeninges.* The arachnoid does not follow the convolutions of brain and looks like a loose fitting sac. Multiple arachnoid granulations pass through subarachnoid space and blends with pia matter.