ANATOMY

Detailed explanation-1: -Three layers of membranes known as meninges protect the brain and spinal cord. The delicate inner layer is the pia mater. The middle layer is the arachnoid, a web-like structure filled with fluid that cushions the brain. The tough outer layer is called the dura mater .

Detailed explanation-2: -Your brain and spinal cord are protected and supported by three meningeal layers. These membrane layers are the dura mater, arachnoid mater and pia mater.

Detailed explanation-3: -The term “pia mater” means “tender matter.” It is composed of delicate connective tissue and has many tiny blood vessels. The pia mater is the only layer that clings tightly to the brain and follows all of its convolutions. Cerebral arteries and veins travel in the subarachnoid space, completely enveloped by pia mater.

Detailed explanation-4: -Pia mater (/ˈpaɪ. ə ˈmeɪtər/ or /ˈpiːə ˈmɑːtər/), often referred to as simply the pia, is the delicate innermost layer of the meninges, the membranes surrounding the brain and spinal cord. Pia mater is medieval Latin meaning “tender mother". The other two meningeal membranes are the dura mater and the arachnoid mater.

Detailed explanation-5: -The meninges separate three spaces called the epidural space, subarachnoid space, and the subdural space. Each of these spaces contains some important blood vessels, rupture of which can cause headache. The epidural space is a potential space located between the inner surface of the skull and the tightly adherent dura.