What are nerves?
cord-like structures distributed throughout the body.
a bundle of neurons/neurons are single cell
What are neurons?
cord like structures that are bundled of many hundreds to thousands of cells
What is endoneurium?
mesh collagen fibers, fibroblasts, and macrophages surrounded by ECF
fluid nurishes the neuron and provides the necessary environment for its functions
What is perineurium?
thicker sheath of ct
collagenous sheaths with up to 15 layers of fibroblast distributed in a meshwork of collagen
What is epineurium?
bundles all the fasciculi together to form a single nerve
makes up to 50% of the cross-sectional area of a nerve
sheath gives the nerve the necessary tensile strength to resist the tensile forces that can so easily damage the delicat nervous tissue.
small blood vessels and lymphatics for the nerve
Protecting the nervous tissue