Examlex
The epithelial cells lining the intestine have surface projections that increase the area for absorption.These projections are called ______.
Proteins
Proteins are large, complex molecules essential for the structure, function, and regulation of the body's tissues and organs, composed of chains of amino acids.
Schwann Cells
A type of glial cell in the peripheral nervous system that encircles nerve fibers, providing insulation (myelination) and enhancing signal transmission.
Oligodendroglia
Glial cells in the central nervous system that produce myelin, a substance that insulates axons to increase the speed at which neural impulses propagate.
Myelin
The fatty substance that surrounds the axon of some nerve cells, forming an insulating layer that speeds up signal transmission.
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