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18.1 Natrium-Kalium pomp

18.1 Natrium-Kalium pomp. Buiten cel. In cel. Weinig K+ Veel Na+ Veel Cl-. K+ “lekt” terug“ door diffusie. Veel K+ Weinig Na+ Weinig Cl-. Door depolarisatie  Ca2+-poort open  transmitterstof naar zenuwcel. Overschrijden Drempelwaarde Na+. +. -. = hyperpolarisatie.

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18.1 Natrium-Kalium pomp

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  1. 18.1 Natrium-Kalium pomp Buiten cel In cel

  2. Weinig K+ Veel Na+ Veel Cl- K+ “lekt” terug“ door diffusie Veel K+ Weinig Na+ Weinig Cl-

  3. Door depolarisatie  Ca2+-poort open  transmitterstof naar zenuwcel Overschrijden Drempelwaarde Na+ + - = hyperpolarisatie

  4. Drempelwaarde – Actiepotentiaal Absoluut refractaire periode – Relatieve refractaire periode

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