reflejo miotatico
DESCRIPTION
relfejos cerebralesTRANSCRIPT
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UNIVERSIDAD NACIONAL AUTONOMA DE
MÉXICO
FACULTAD DE ESTUDIOS SUPERIORES
IZTACALA.
Sistema Nervioso
REFLEJO MIOTÁTICO
Gutiérrez Miranda PamelaGrupo:2202
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Reflejo miotático
Tono muscular
Postura corporal
Diferentes grados de contracción-relajación
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HUSO MUSCULARFIBRAS
INTRAFUSALES
Solo contra
e extrem
os
Fibras eferentes motoras g
Fibras aferentes a
grandes A a
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Fibras aferentes a grandes A a
TERMINACION PRIMARIA o ANULOESPIRAL
TERMINACION SECUNDARIA o EN FLOR ABIERTA
(ROSETONES)
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FIBRAS INTRAFUSALES
Fibras de bolsa nuclearFibras de
cadena nuclear
Terminación
primaria
Terminación
secundaria
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Estiramiento lento
Terminaciones 1º y 2º
Grado de estiramiento
RESPUESTA ESTÁTICAY- ESTATICOS (Y-s)
EN CADENA NUCLEAR
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Long. repentina
Terminación 1º estimulo potente
RESPUESTA DINÁMICAY- DINAMICO (Y-d)
EN BOLSA NUCLEAR
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BIBLIOGRAFÍA
Neurofisiología motora e integradora. ELSEVIER
Sistema Nervioso Humano. Alejandro Sandoval.