- A(n) _________ period is a brief time following a nerve impulse when the membrane is unresponsive to an ordinary stimulus.
- A cell membrane is ______ if its membrane potential becomes less negative (more positive) than the resting potential.Multiple choice question.hyperpolarized
- At a synapse, the neuron sending a signal is the ______ neuron, while the neuron receiving the signal is the ______ neuron.
- Since neurons can respond to changes in their surroundings, they are described as __________ .
- A junction between two neurons is called a ______.
- A(n) ______ occurs when the cell membrane of an axon has a rapid change in polarization that moves away from the resting state and then returns to the resting state.
- Potassium ion concentration is ______ inside the cell than outside.
- Schwann cells and satellite cells are types of ______ found in the ______ nervous system.
- In the peripheral nervous system, which type of neuroglial cell produces myelin?
- Oligodendrocytes form ______ in the central nervous system.
- The water molecule shows ______ because it has negatively-charged regions in the vicinity of the oxygen atom and positively-charged regions near the hydrogen atoms.
- When depolarization occurs, the resting membrane potential becomes ______ negative and ______ 0mV.
- Which term indicates that charges have the capability of moving across the cell membrane, creating an electric current?
- A voltage of -70 mV is the _________ membrane potential of neurons, occurring when a neuron is inactive.
- Which of the following are neuroglia found in the peripheral nervous system?
- Each oligodendrocyte will myelinate ______ axon(s) within the CNS.
- What is the function of the microglia of the CNS?
- The neuroglial cell that produces myelin to surround neurons in the peripheral nervous system is the _________ cell.
- Name the neuroglia in the central nervous system that functions as phagocytes to remove cellular debris.
- Most cells are negatively charged on the inside but have a positively charged extracellular space outside. This difference in charges is called ______.