neuro cap 9 purves Flashcards

1
Q

nombre de la percepción del dolor

A

nocicepción

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2
Q

receptores específicos para el dolor

A

nocireceptores, que conducen de forma lenta, sus axones son ligeramente mielinizados o amielinicos

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3
Q

fibras del dolor

A

A-delta de velocidad 20m/s mielinicos

C de velocidad baja (2m/s), amielinicos

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4
Q

receptores polimodales

A

responden a estímulos, térmicos, mecánicos y químicos

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5
Q

zona de detección del dolor

A

tálamo y corteza

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6
Q

-primer dolor y -segundo dolor

A
  • dolor agudo, pasajero

- dolor sordo y mas prolongado

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7
Q

principal responsable de la acritud de los pimientos picantes

A

capsaicina

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8
Q

que fibras activa la capsaicina

A

fibras c (nocireceptivas)

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9
Q

que ocurre con las membranas mucosas de la cavidad oral al contacto con capsaicina

A

produce irritación y en consecuencia reacciones protectoras.

  • en latas concentraciones produce hiperalgesia
  • aplicaciones repetitivas desenbilizan las fibras doloras e impiden que la sustancia P salga
  • pude usarse como analgésico (0.075%), para aliviar artritis, neuralgias
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10
Q

defina dolor referido

A

resultado de la enfermedad de un órgano interno se percibe como dolor cutáneo no es del origen real del dolor

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11
Q

dolor referido cardíaco

A

-pared torácica superior con irradiación al brazo y mano izquierdos

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12
Q

dolor referido vesicular

A

región escapular

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13
Q

dolor referido esofágico

A

pared torácica

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14
Q

dolor referido uretral o vesical

A

periné

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15
Q

dolor referido por apendicitis

A
  • pared abdominal inferior

- rodea el ombligo

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