NEET PG DENTAL EXAM

Detailed explanation-1: -PERINEURIUM. Each fascicle is surrounded by a connective tissue sheath, the perineurium. The perineurium consists of concentric layers of flattened cells separated by layers of collagen (Figures 12 to 16). The number of perineurial cell layers depends on the size of the fascicle.

Detailed explanation-2: -perineurium: A protective sheath covering nerve fascicles.

Detailed explanation-3: -Each nerve is covered on the outside by a dense sheath of connective tissue, the epineurium. Beneath this is a layer of fat cells, the perineurium, which forms a complete sleeve around a bundle of axons. Perineurial septae extend into the nerve and subdivide it into several bundles of fibres.

Detailed explanation-4: -Axons, Schwann cells, collagen and endoneurial fluid are bundled into a fascicle by the perineurium (Pe).