Nervous system/overview of neurons/Crush syndrome/effect of hyperkalemia on cardiac muscle

POINT!

When a muscle is crushed, K+ in blood is increased, and in cardiac muscle cells, diffusion of K+ through K+ channel is less, resting membrane potential is less, stability of the cell is less, causing arrythmia.

Challenge Quiz

1.

When a muscle is crushed, K⁺ in blood is increased. decreased  正解!, and in cardiac muscle cells, diffusion of K⁺ through K⁺ channel is less. more  正解!, resting membrane potential is less. more  正解!, stability of the cell is less. more  正解!, causing arrythmia.