Correo Electrónico
DNINFOA - SIA
Bibliotecas
Convocatorias
Identidad U.N.
Published
Excitabilidad iterativa y actividad rítmica de los músculos estriados: contracción prosténica
Downloads
Se hace un estudio sobre la historia de la excitabilidad iterativa. Se relaciona la excitabilidad iterativa con la contracción prosténica. Se describen los caracteres de esta variedad de contracción muscular, a saber: contracción rítmica que aparece en el músculo gastrocnemio de varias clases de ranas, hyla labialis, rana esculenta, bufo marinus; excitación directa; la excitación repetida puede ser choques de inducción, descargas de condensadores, estimulación electrónica; la frecuencia de los estímulos usada ha estado entre 50 y 500 por segundo; la duración de los estímulos debe estar por debajo del valor de la cronaxia; con intensidad reobase no aparece la contracción prosténica; los electrodos pueden ser o no impolarizables. Hay dos clases de contracción prosténica una caracterizada por ondas rítmicas solas, y otra en que hay un tétanos y a éste se le agregan las sacudidas rítmicas; la variedad rítmica pura aparece con menor intensidad de los estímulos; con excitación ascendente aparece mejor la variedad rítmica. La frecuencia de las sacudidas está entre unas 6 y unas 150 por minuto.
The history of the hiterative excitability is reported. It is pointed out the possible relation between the iterative excitability and the prosthenic contraction. The history of the hiterative excitability is reported. Is a rhythmic contraction that appears in the muscle gastrocnemius of the frog, hyla labialis, rana esculenta, bufo marinus, with direct excitation; this repeated estimulation may be induction shocks, condenser discharges or electronic stimulators; the frequency of the stimulus may vary from 60 to 500 per second; the duration of the stimulus must be less than the chronaxie; with intensity of rheobase it does not appear the prosthenic contraction; the electrodes may or may not be impolarizables; there are two kinds of prosthenic contraction: one characterized by rhytmic contractions only, and another one characterized by tetanus plus rhythmic contractions; the rhythmic variety appears with less intensity of the stimulus the frequency of the twitches may vary from 6 to 150 per minute
How to Cite
APA
ACM
ACS
ABNT
Chicago
Harvard
IEEE
MLA
Turabian
Vancouver
Download Citation
Article abstract page views
Downloads
License
Copyright
Authors must agree to transfer to the Revista de la Facultad de Medicina the copyright of the articles published in the Journal. The publisher has the right to use, reproduce, transmit, distribute and publish the articles in any form. Authors will not be able to permit or authorize the use of their published paper without the written consent of the Journal.
The letter of copyright transfer and the letter of authorship responsibility must be submitted along with the original paper through the Journal OJS platform. These files are available in https://goo.gl/EfWPdX y https://goo.gl/6zztk4 and must be uploaded in step 4 (supplementary files).
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
