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neuron messengers

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Total cards: 8•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (8)

#1
Front (Question)

membrane is HIGHLY permeable for what chemicals?

Back (Answer)

potassium and calcium

#2
Front (Question)

membrane is SLIGHTLY permeable for what chemical?

Back (Answer)

sodium

#3
Front (Question)

the extracellular fluid has a high concentration of what?

Back (Answer)

sodium and calcium ions

#4
Front (Question)

the extracellular fluid has a high concentration of what?

Back (Answer)

sodium and calcium ions

#5
Front (Question)

the intracellular fluid contains

Back (Answer)

potassium and negative proteins made by cells

#6
Front (Question)

sodium potassium pump

Back (Answer)

takes sodium out of cells and potassium into cells

#7
Front (Question)

polarised membrane

Back (Answer)

unlike charges are separated by membrane forces pulling charges together when they come together they release energy

#8
Front (Question)

how is potential difference between 2 places measured

Back (Answer)

voltage(V) or (mV) resting membrane -70mV membrane potential is large in nerve and muscle cells (sodium concentration is 10x higher outside cell potassium is 30x higher on inside)