SLCC ANATOMY CHAPTER 14

Structurally,
the nervous system consists of which two subdivisions?

Clusters of
neuron cell bodies located outside the CNS are called

Which
functional division of the nervous system includes the SNS and ANS?

In the PNS,
components of the afferent division include

Which effectors
are innervated by visceral motor neurons?

The two
distinct cell types that compose all nervous tissue are

The slightly
expanded tips of telodendria are called

The cytoplasm
in a neuron cell body (or sometimes the entire cell body) is called the

Structural
categories of neurons include which of the following?

Neurons with
numerous dendrites and a single axon are structurally classified as

Efferent
neurons transmit nerve impulses

Collectively,
glial cells do all of the following except

The word root
glia, as in "glial cells," most nearly means

Which pair
names only neuroglia of the central nervous system?

Which
description refers to oligodendrocytes?

The largest and
most abundant of the CNS glial cells, ____________ help form the blood-brain
barrier.

Which types of
glial cells are found in the peripheral nervous system?

Which term
describes the collection of lipids and proteins that may form a protective
coating around an axon?

Myelination
affects nerve impulse conduction in which of the following ways?

Axon
regeneration in the PNS involves ____________ in a process known as Wallerian
____________.

Nerves are
bundles of parallel axons in the PNS that have three successive connective
tissue wrappings, called the

The point at
which two excitable cells contact to exchange information is called a

The synaptic
knob of a neuron may contact another neuron anywhere except on its

At a chemical
synapse, the presynaptic membrane releases a signaling molecule called a

Which one of
the following is not a step in the conduction of a nerve impulse across a
chemical synapse?

The rate of
conduction of a nerve impulse is influenced by the

Which
description doesnot accurately characterize neuronal pools?

All of the
following are types of neuronal circuits except

In the embryo,
the neural plate (which gives rise to most nervous tissue structures) develops
from

What accounts
for the gray color of gray matter?

Bundles of
neurofilaments extending into dendrites and axons to provide structural support
are called

The phrase
"terminally differentiated," as applied to mature neurons, means that they

Although they
outnumber ____________ by as much as ten to one, ____________ account for only
about half of the total volume of the nervous system.

Their methods
are different, but ____________ in the CNS and ____________ in the PNS perform
similar functions.

Which glial
cells behave much like certain leukocytes?

Although
classified as glial cells, ____________ are also ____________ that line the
cavities in the brain and spinal cord and help form the choroid plexus.

In the PNS, an
axon may be enveloped by ____________ without being ____________.

Which glial
cells participate in the repair of damaged nerves?

Which nervous
system divisions or components contain no afferent neurons?

Ironically, a
____________ neuron typically has more dendrites than a ____________ neuron.

A multipolar
neuron that synapses on a gland cell is functionally classified as

A nerve impulse
involves ____________ across a neuron's plasma membrane.

Axon
regeneration in the CNS is restricted by which of the following factors?

At a chemical
synapse, ____________ are found only in the plasma membrane of the ____________
cell.

Synapses are
categorized on the basis of

Which
structural classes of neurons are always sensory in function?

The
____________ is the only functional class of neuron entirely restricted to the
____________ nervous system.

Which of the
following are structural, as opposed to functional, divisions of the nervous
system?
(1) CNS (2) SNS (3) PNS (4) ANS

With regard to
control of effectors, ____________ is to involuntary as ____________ is
to voluntary.

Touch,
vibration, and proprioception are examples of

Which statement
is false regarding neural circuits?

Increased
dietary intake of vitamin B₁₂ and ____________ during
pregnancy can dramatically reduce the incidence of neural tube defects such as
____________.

The cell body
of a mature neuron does not contain

Neurons that
have only two processes attached to the cell body are called

Which neurons
are located only within the CNS?

An example of
an effector is a

The glial cells
that help produce CSF in the CNS are

Which of the
following is not a part of the CNS?

Which of these
cells transfer and process information?

Which type of
neuronal pool utilizes nerve impulse feedback to repeatedly stimulate the
circuit?

At an
electrical synapse, presynaptic and postsynaptic membranes interface through

The epineurium
is