Answer: Withdrawal. Copper IUDs (intrauterine devices)
Explanation:
Extrinsic muscles are contained within a region such as the hand or the leg, and the intrinsic muscles move the fingers but are found outside the region.
Answer:
This is achieved because the sodium channels have a refractory period following activation, during which they cannot open again. This ensures that the action potential is propagated in a specific direction along the axon.
Red blood cells or erythrocytes
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