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Definition of Decussation
1. Noun. An intersection or crossing of two tracts in the form of the letter X.
Generic synonyms: Anatomical Structure, Bodily Structure, Body Structure, Complex Body Part, Structure
Specialized synonyms: Chiasma Opticum, Optic Chiasm, Optic Chiasma
Derivative terms: Chiasmal, Chiasmatic, Chiasmic, Decussate
Definition of Decussation
1. n. Act of crossing at an acute angle, or state of being thus crossed; an intersection in the form of an X; as, the decussation of lines, nerves, etc.
Definition of Decussation
1. Noun. A crossing or intersection of lines etc. so as to form an X-shape. ¹
¹ Source: wiktionary.com
Definition of Decussation
1. [n -S]
Medical Definition of Decussation
1. Act of crossing at an acute angle, or state of being thus crossed; an intersection in the form of an X; as, the decussation of lines, nerves, etc. Origin: L. Decussatio. Source: Websters Dictionary (01 Mar 1998)
Lexicographical Neighbors of Decussation
Literary usage of Decussation
Below you will find example usage of this term as found in modern and/or classical literature:
1. The American Journal of the Medical Sciences by Southern Society for Clinical Investigation (U.S.) (1835)
"The situation of the decussation of the Ulterior cords of the medulla oblongata
is well known, but its position in relation to the occipital foramen was ..."
2. The Anatomy of the Nervous System from the Standpoint of Development and by Stephen Walter Ranson (1920)
"The anterior columns are first cut off by the decussation of the pyramids (Fig.
... The Pyramids and Their Decussation.—We have had occasion repeatedly to ..."
3. Abstracts of the Papers Printed in the Philosophical Transactions of the by Royal Society (Great Britain) (1833)
"On Semi-decussation of the Optic Nerves. By William Hyde Wol- laston, ... To this
united portion the term Decussation has been applied, ..."
4. The Physiology of Man by Austin Flint (1873)
"Transmission of motor stimulus in the cord—Decussation of the motor conductors
of the cord—Decussation at the medulla oblongata—Decussation of the motor ..."
5. The London Medical Gazette (1835)
"I profess that I do not see, nor ever have seen, any thing like the decussation
which he describes : I believe, therefore, that it doc« not exist: and as ..."
6. Text-book of normal histology: including an account of the development of by George Arthur Piersol (1904)
"Above the level of the decussation of the pyramids, a second or sensory decussation
is seen, formed by the crossing fibres proceeding from the nerve-cells ..."
7. Manual of Practical Anatomy by Daniel John Cunningham (1901)
"For this purpose introduce the back of the knife-blade into the antero-median
furrow below the decussation, and on one side push forcibly towards the ..."
8. A Manual of physiology: With Practical Exercises by George Neil Stewart (1905)
"Decussation of the Sensory Paths.—On the other hand, it is certain that pathological
or traumatic lesions, apparently involving the destruction of one ..."
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