Nerve Tissue and Nerves

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The PNS has two types of neuroglia:

(1) Schwann, and (2) satellite.

The CNS has four types of neuroglia:

(1) astrocytes, (2) microglia, (3) ependyma, and (4) oligodendrocytes.

The parts of a neuron include the:

(1) cell body, (2) dendrites, and (3) the axon.

The functions of neurons include:

(1) detecting stimuli, (2) conducting impulses, (3) some involvement in decision-making.

Neurons can be categorized into the three following functional types:

(1) sensory (afferent), (2) motor (efferent), and (3) interneurons (association or internucial).

Neurons can be categorized into the three following structural types:

(1) unipolar, (2) bipolar, and (3) multipolar.

Multipolar neurons are found in the

CNS.

Bipolar neurons

are associated with special senses.

List the neuroglia of the CNS in order of most processes to least processes:

astrocytes, oligodendrocytes, and microglia.

Motor neurons conduct action potentials

away from the CNS.

Interneurons are found in the

brain and spinal cord.

The CNS consists of the

brain and spinal cord.

Dendrites

bring information toward the cell body.

The nucleus of a neuron is housed in the

cell body.

The PNS consists of the

cranial nerves and spinal nerves.

This neuroglia is either cuboidal or columnar and sometimes has cilia

ependyma.

Neuroglia is the metaphorical ____ of the nervous system.

glue

Interneurons form

links between other neurons.

The axon is a _____ process than are the dendrites.

longer

The neuroglia of the CNS that performs an immune function is the

microglia.

Astrocytes are the ____ neuroglia of the CNS.

multifunctional

Motor neurons are classified structurally as

multipolar.

Interneurons are classified structurally as

mutipolar.

Oligodendrocytes of the CNS produce

myelin.

The Schwann cells, a type of neuroglia of the PNS, produce

myelin.

Nerve tissue is made up of two types of cells:

neurons and neuroglia.

Neuroglia act as

protective and supportive cells of the nervous system.

There are ____ types of neuroglia.

six

The axon

takes information away from the cell body.

The nervous system is divided into two parts:

the (1) Central Nervous System (CNS), and the (2) Peripheral Nervous System (PNS).

The basic structural and functional units of the nervous system are

the neurons.

Sensory neurons conduct action potentials

toward the CNS.

The most common structural type of neurons are

unipolar neurons.

Most sensory neurons are

unipolar, but some are bipolar.

The function of the satellite cells is

unknown.

Ependyma covers the insides of the

ventricles, or spaces in the brain.


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