I'm not sure if I understand your question, but here goes nothing.
The AXON of a NERVE CELL is wrapped in a MYELIN SHEATH
The perineurium connective tissue covers and encapsulates bundles of nerve fibers called fascicles within a nerve. It is located between the endoneurium (which surrounds individual nerve fibers) and the epineurium (which surrounds the entire nerve).
The outermost layer of the human brain is called the cerebral cortex. It is responsible for higher brain functions such as thinking, perceiving, producing and understanding language, and controlling voluntary movements.
what is the portion of the brain containing control certer for body's functions and emotions: means "under the inner rool"
The outermost covering of the brain is called the dura mater. It is a tough membrane composed of dense irregular connective tissue that helps protect the brain and spinal cord. Adhering to the inside surface of the skull, the dura mater also forms partitions that divide the brain into compartments.
The epineurium tissue is located on the outermost layer of a peripheral nerve. It surrounds and protects the entire nerve bundle by providing structural support and acting as a barrier to external substances.
epidermis is the outermost covering of the leaf
Adventitia is a 10 letter word for outermost covering of an organ.
sclera
It is the integumentary system, or skin.
The outermost layer of the skin is called the epidermis.
cortex
membrane or plasma membrane.
Facial Nerve (VII)
The epineurium is the outermost layer of connective tissue surrounding a peripheral nerve. It includes the blood vessels supplying the nerve.
A dead tree branch.
Mucosa
Epineurium