Nervous System

The main cell type in the nervous system is ____.

• neuroglia

• neurons

Neurons typically have ___________.

• cell body

• axons

• dendrites

• all of the above

The chemical messengers in a synapse.

• neurons

• neurotransmitters

• axons

• dendrites

The brain and spinal cord are parts of the ________ nervous system.

• central

• peripheral

A type of neuroglia that phagocytize bacterial cells.

• oligodendrocytes

• ependymal

• astrocytes

• microglia

Type of neuroglia that form the myelin sheath.

• oligodendrocytes

• microglia

• ependymal

• astrocytes

the myelin-producing neuroglia of the peripheral nervous system

• oligodendrocytes

• Schwann cells

• microglia

• ependymal

Narrow gaps in the myelin sheath between Schwann cells are called

• neurotransmitters

• synapses

• neurilemma

• nodes of Ranvier

line the inside of ventricles and cover choroid plexuses within the ventricles

• microglia

• oligodendrocytes

• astrocytes

• ependymal

impulses are conducted along peripheral neurons to effectors, muscles or glands that perform actions in response; this is the ____ function

• sensory

• integrative

• motor