Anatomy Questions
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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 ______.