The olecranon bursa is a fluid filled sac-like structure that acts as a cushion, allowing the posterior skin of the elbow to glide past the olecranon process with minimal friction. 8 mm; proximal projection of olecranon process beyond proximal rim of semilunar notch, 0.
The nerve cell, being of an animal would contain various organelles, including the cell membrane,nucleus (which contains the nucleolus, the cytoplasm, mitochondria, lysosomes, â¦ cytoskeleton, chromatain Endoplasmic reticulum, Golgi Apparatus, and possibly flagella, cilia, centriols and ribosomes.
    A tract is a collection of nerve fibers (axons) in the central nervous system. A nerve is a collection of nerve fibers (axons) in the peripheral nervous system.aking the world better, one answer at a time. nerve refers to a bundle of myelinated axon and dendrites in the peripheral nervous system.And a tract refers to a bundle of myelinated axons and dendrites in the central nervous system.