THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -Perineurium is a protective sheath around fasciculus . Fasciculus is a collection of neurons. Epineurium surrounds the entire nerve.

Detailed explanation-2: -The epineurium is the outermost layer of dense irregular connective tissue surrounding a peripheral nerve. It usually surrounds multiple nerve fascicles as well as blood vessels which supply the nerve.

Detailed explanation-3: -Each fascicle is wrapped in a layer of connective tissue called the perineurium. Finally, the entire nerve is wrapped in a layer of connective tissue called the epineurium.