- Schwann's white substance
- Schwann's white substance Schwann's white" sub"stance (Anat.) The substance of the medullary sheath. [1913 Webster]
The Collaborative International Dictionary of English. 2000.
The Collaborative International Dictionary of English. 2000.
white substance of schwann — Usage: usually capitalized 2d S Etymology: after Theodor Schwann died 1882 German naturalist, anatomist, & physiologist : myelin … Useful english dictionary
Schwann — Theodor, German histologist and physiologist, 1810–1882. See S. cells, under cell, S. cell unit, S. white substance, sheath of S … Medical dictionary
substance — Stuff; material. SYN: substantia [TA], matter. [L. substantia, essence, material, fr. sub sto, to stand under, be present] alpha s. SYN: reticular s. (1). anterior perforated s. [TA] a region at the base … Medical dictionary
Lamina — A plate or layer. For example, the lamina arcus vertebrae, usually just called the lamina, are plates of bone in each vertebral body. * * * SYN: plate (1). SEE ALSO: layer, stratum. [L] l. affixa [TA] that part of the medial ependymal wall of the … Medical dictionary
cell — cell1 cell like, adj. /sel/, n. 1. a small room, as in a convent or prison. 2. any of various small compartments or bounded areas forming part of a whole. 3. a small group acting as a unit within a larger organization: a local cell of the… … Universalium
Fiber — The parts of plants that cannot be digested, namely complex carbohydrates. Also known as bulk or roughage. Complex carbohydrates from plants are rich in starch and fiber. Examples of plants that provide complex carbohydrates (fiber) are fresh… … Medical dictionary
nervous system — Anat., Zool. 1. the system of nerves and nerve centers in an animal or human, including the brain, spinal cord, nerves, and ganglia. 2. a particular part of this system. Cf. autonomic nervous system, central nervous system, peripheral nervous… … Universalium
nervous system disease — Introduction any of the diseases or disorders that affect the functioning of the human nervous system (nervous system, human). Everything that humans sense, consider, and effect and all the unlearned reflexes of the body depend on the… … Universalium
Myelin sheath gap — Drawing of a peripheral nerve axon (labeled axis cylinder ), showing a node of Ranvier along with other features … Wikipedia
Cell — The basic structural and functional unit in people and all living things. Each cell is a small container of chemicals and water wrapped in a membrane. Each cell in the human body there are 100 trillion cells in each of us contains the entire… … Medical dictionary