♥ El Cuerpo Humano (Sistema Circulatorio) ♥



El funcionamiento cardíaco es perceptible mediante la auscultación o el pulso en algunas arterias superficiales, como en la carótida y femoral (pulso central), o en las arterias radiales, humeral, pedia, etc.(pulso distal)

Parada cardíaca

Si el corazón se para, no se detectará sonido en la auscultación, la circulación de la sangre se habrá detenido y no se percibirá pulso. La vida de la persona se extinguirá en breves minutos, por lo que debemos realizar la reanimación cardíaca o masaje cardíaco externo. Su tratamiento se desarrolla en la Reanimación Cardiopulmona.

Son causas que pueden producir una parada cardíaca: lesiones, enfermedades, intoxicaciones, etc.

Algunas lesiones pueden afectar directa o indirectamente la funcionalidad cardíaca:

     - Fuertes traumatismos en la zona precordial.

     - Aplastamiento de la caja torácica.

     - La acción de la electricidad.

Entre las enfermedades, la más frecuente es el infarto de miocardio, que se produce al interrumpirse la circulación en el sistema coronario que irriga al propio músculo cardíaco.

Los tóxicos que pueden inhibir la función cardíaca de forma directa o indirecta son muy variados: barbitúricos, alcohol, nicotina, picaduras de insectos o mordeduras de animales venenosos, reacciones alérgicas por medicamentos, etc.

La parada cardíaca cursa con una serie de síntomas:

     - Pérdida de conocimiento.

     - Hipotonía muscular.

     - Respiración jadeante que pasa en breves minutos a apnea.

     - No se escuchan sonidos cardíacos ni existen pulsos periféricos.

     - Palidez.

     - Midriasis o pupilas dilatadas permanentemente.


La hemorragia es la salida de sangre de los vasos sanguíneos como consecuencia de la rotura de los mismos.

Las hemorragias se clasifican:

     - Según su naturaleza:

          - Externas.

          - Internas.

          - Orificios naturales.

     - Según su procedencia:

          - Arteriales: color rojo vivo, sale a borbotones.

          - Venosas: color rojo oscuro, sale de forma continua.

          - Capilares: sale en sábana.

     -La gravedad de la hemorragia depende:

          - Velocidad con que se pierde la sangre.

          - Volumen sanguíneo perdido.

          - Edad, estado psíquico, etc.

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2 comentarios

jessica -

biueniisiimos !!!:) espero que me sirva para mi trabajo practico

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¿Y esta publicidad? Puedes eliminarla si quieres
¿Y esta publicidad? Puedes eliminarla si quieres