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Descriptor English: Electric Organ
Descriptor Spanish: Órgano Eléctrico
Descriptor órgano eléctrico
Scope note: Se encuentra aproximadamente en 250 especies de peces eléctricos, esta estructura está constituida por fibras musculares esqueléticas, que forman placas multinucleadas en forma de discos, organizadas en pilas como las baterías en serie, que están insertadas en una matriz gelatinosa. Una raya torpedo grande puede contener quinientas mil placas. Los músculos de regiones diferentes del cuerpo pueden estar modificados, por ejemplo el tronco y la cola de la anguila eléctrica, el aparato hiobranquial de la raya eléctrica y los músculos oculares extrínsecos de los peces de la familia Uranoscopidae. Los poderosos órganos eléctricos emiten varias veces por segundo pulsos de descargas breves. Funcionan en la caza para debilitar la presa y matarla. Una raya torpedo grande puede producir una descarga de más de 200 voltios, capaz de aturdir a un humano. (Storer et al., General Zoology, 6th ed, p. 672)
Descriptor Portuguese: Órgão Elétrico
Descriptor French: Organe électrique
Entry term(s): Electric Organs
Organ, Electric
Organs, Electric
Tree number(s): A13.332
RDF Unique Identifier: https://id.nlm.nih.gov/mesh/D004557
Scope note: In about 250 species of electric fishes, modified muscle fibers forming disklike multinucleate plates arranged in stacks like batteries in series and embedded in a gelatinous matrix. A large torpedo ray may have half a million plates. Muscles in different parts of the body may be modified, i.e., the trunk and tail in the electric eel, the hyobranchial apparatus in the electric ray, and extrinsic eye muscles in the stargazers. Powerful electric organs emit pulses in brief bursts several times a second. They serve to stun prey and ward off predators. A large torpedo ray can produce of shock of more than 200 volts, capable of stunning a human. (Storer et al., General Zoology, 6th ed, p672)
Annotation: animal only; IM
Allowable Qualifiers: AB abnormalities
AH anatomy & histology
BS blood supply
CH chemistry
CY cytology
DE drug effects
DG diagnostic imaging
EM embryology
EN enzymology
GD growth & development
IM immunology
IN injuries
IR innervation
ME metabolism
MI microbiology
PA pathology
PH physiology
PP physiopathology
PS parasitology
RE radiation effects
SU surgery
TR transplantation
UL ultrastructure
VI virology
Public MeSH Note: 68
History Note: 68(63)
DeCS ID: 4629
Unique ID: D004557
Documents indexed in the Virtual Health Library (VHL): Click here to access the VHL documents
Date Established: 1968/01/01
Date of Entry: 1999/01/01
Revision Date: 1995/05/18
Electric Organ - Preferred
Concept UI M0007168
Scope note In about 250 species of electric fishes, modified muscle fibers forming disklike multinucleate plates arranged in stacks like batteries in series and embedded in a gelatinous matrix. A large torpedo ray may have half a million plates. Muscles in different parts of the body may be modified, i.e., the trunk and tail in the electric eel, the hyobranchial apparatus in the electric ray, and extrinsic eye muscles in the stargazers. Powerful electric organs emit pulses in brief bursts several times a second. They serve to stun prey and ward off predators. A large torpedo ray can produce of shock of more than 200 volts, capable of stunning a human. (Storer et al., General Zoology, 6th ed, p672)
Preferred term Electric Organ
Entry term(s) Electric Organs
Organ, Electric
Organs, Electric



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