Introduction to Psychology 10th Edition by Rod Plotnik,Haig Kouyoumdjian

Exercise 25

The axon membrane has (a) _____ that can be opened or closed. These gates keep some ions inside the membrane and other ions outside. If the axon is ready to conduct but not actually conducting an impulse, the axon is said to be in the (b) _____ state. In this state, most of the positively charged (c) _____ ions are on the outside of the membrane and all the negatively charged (d) _____ ions are trapped inside. In the resting state, the outside of the membrane has a (e) _____ charge compared to the (f) _____ charge on the inside. The process responsible for picking up and transporting sodium ions from the inside to the outside of the axon membrane is called the (g) _____.