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Put (a weapon such as a knife or sword) into a sheathEncase (something) in a close-fitting or protective covering.
A mixture of proteins and phospholipids forming a whitish insulating sheath around many nerve fibers, increasing the speed at which impulses are conducted
Is a type of cell primarily associated with structural support.
These are non-neuronal cells which have functions such as insulating neurons, directing growth, regulating blood flow, and orchestrating immune responses. Classes of glial cell include astrocytes, oligodendrocytes, and Schwann cells.
Near the surface of the body, with special reference to the circulation and nervous system.
He was a German physiologist from the year of------ to ------. He showed that animals (as well as plants) are made up of individual cells and that the egg begins life as a single cell. He also discovered the cells that form the myelin sheaths of nerve fibers
Schwann Theodor Ambrose Hubert (1810–82),
There are ____ types of Schwann cell?
- 1.Two types
- 2. Myelinating and Nonmyelinating
This cells wrap around axons of motor and sensory neurons to form the myelin sheath.
Myelinating Schwann cells
This cells derived from neural stem/glial cells and are primarily responsible for the development of myelin or insulation of nerves to allow conductivity to happen smoothly.
A point at which lines or pathways intersect or branch; a central or connecting point.
regularly spaced constrictions of the myelin sheath, occurying at varying intervals along the length of a nerve fiber.
>The movement of a wave through a medium
>The spreading of something (a belief or practice) into new regions.
>Abrupt evolutionary change; sudden large-scale mutation
>The movement of hard particles such as sand over an uneven surface in a turbulent flow of air or water.
>The action of leaping or dancing
A demyelinating disease is any disease of the nervous system in which the myelin sheath of neurons is damaged. This impairs the conduction of signals in the affected nerves, causing impairment in sensation, movement, cognition, or other functions depending on which nerves are involved.
Divide into two branches or forks.
A flattened extension of a cell, by which it moves over or adheres to a surface.
A long, slender, tapering pseudopodium, as found in some protozoans and in embryonic cells
a temporary protrusion or retractile process of the cytoplasm of a cell that functions (as in an amoeba) especially in a locomotor or food gathering capacity.
A protein that forms (together with myosin) the contractile filaments of muscle cells, and is also involved in motion in other types of cells.
>Stick fast to (a surface or substance)
>Believe in and follow the practices of
> Represent truthfully and in detail
>The action or process of adhering to a surface or object
>The frictional grip of wheels, shoes, etc., on a road, track, or other surface
>The sticking together of particles of different substances
>Allegiance or faithfulness to a particular person, party, or set of ideas
>An abnormal union of membranous surfaces due to inflammation or injury
Any of a class of proteins present in the serum and cells of the immune system, that function as antibodies
A substance or layer that underlies something, or on which some process occurs, in particularThe surface or material on or from which an organism lives, grows, or obtains its nourishment.
A fibrous protein present in the basal lamina of the epithelia.
biological research on stem cells derived from embryos and on their use in medicine
Embryonic stem cell
A single-celled microscopic animal of a group of phyla of the kingdom Protista, such as an ameba, flagellate, ciliate, or sporozoan.
CAM's : C------A-----M
A group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
CAM's specific To Neural system incliding N-cam, Neuroglial Cam or NgCAM, Tag-1, MAG, and DCC, all of which are part of the:
Situated or taking place outside a cell or cells
>An ion or molecule attached to a metal atom by coordinate bonding.
>A molecule that binds to another (usually larger) molecule.
>These cells which assist in the subcellular organization of both neuron axon growth and migration.
>These cells are typically other, sometimes immature, neurons and glial cells.
(from the Latin ligandum, meaning:
It is a signal triggering molecule, binding to a site on a target protein.