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Sumario materiales de estudio BIOFISICA HUMANA- MEDICINA
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,PRESION SANGUÍNEA− Es la fuerza que ejerce la sangre por unidad de superfici
de la pared vascular
−Es la fuerza que se aplica contra las paredes de las
arterias cuando el corazón bombea la sangre al cuerpo
,UNIDADES DE MEDIDA DE LA PRESIÓN
SANGUÍNEA
La presión se expresa como fuerza por unidad de área. E
el SI la unidad adoptada es el pascal.
- 101 kilopascales = 760 mm Hg
- 1 Kp = 7,5 mm Hg
- 1 mm Hg = 1,36 cm de agua
, PRESIÓN SISTÓLICA
Es la presión máxima que se observa al final de la
eyección rápida, generada por el trabajo ventricular. Su
valor depende de:
• El volumen sistólico del ventrículo izquierdo
• La velocidad de eyección
• La distensibilidad de las paredes arteriales
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