Ch. 12-15 Final Test Review

T or F: The afferent division of the PNS carries motor commands to muscles and glands.

• True

• False; efferent

Which of the following is not found in the CNS?

• Astrocytes

• Ependymal cells

• Schwann cells

• Microglia

T or F: The site of intercellular communication between a neuron and another cell is the synapse.

• True

• False; telodendria

What structure is shown in #4?

• Dendrite

• Axon

• Node of Ranvier

• Myelin sheath

What is the function of microglia in the CNS?

• Remove cell debris

• Maintain blood-brain barrier

• Surround neuron cell bodies in ganglia

• Myelinate CNS axons

During the repolarizaton of a neuron...

• Sodium moves out of the cell

• Potassium movies out of the cell

• Potassium moves into the cell

• Sodium moves into the cell

T or F: Synaptic transmission describes the rapid impulse conduction from node to node.

• True

• False; saltatory propagation

T or F: The relative refractory period is the period during which an excitable membrane cannot respond to further stimulation.

• True

• False; absolute

Which is the excitatory neurotransmitter responsible for learning and memory?

• GABA

• Dopamine

• ACh

• Glutamate

____ summation occurs when two stimuli arrive at the same time, but at different locations.

• Temporal

• Moderate

• Spatial

• Absolute