WITH 100% VERIFIED ANSWERS
\Q\.Neuron - ANSWER-✔a nerve cell; the basic building block of the nervous
system
\Q\.Neuroglia - ANSWER-✔"nerve glue"; many types of cells that support,
insulate, and protect neurons
\Q\.Soma - ANSWER-✔cell body; densely packed cell bodies in the CNS are nuclei;
ganglia or plexus in PNS
\Q\.dendrites - ANSWER-✔carry nerve impulses toward the cell body; receptive
portion of the neuron that receives a stimulus and continues further conduction
\Q\.Axon - ANSWER-✔carry nerve impulses away from the cell body
\Q\.Sensory neuron - ANSWER-✔transmit afferent impulses from sensory
receptors to the CNS
,\Q\
\Q\.Associational (interneurons) - ANSWER-✔transmit impulses from neuron to
neuron
\Q\.Motor neuron - ANSWER-✔transmits nerve impulses from the brain and
spinal cord to muscles and glandular epithelial tissues (efferent)
.Wallerian degeneration - ANSWER-✔degeneration of a nerve fiber that has
been separated by injury or disease
\Q\.Nerve Regeneration - ANSWER-✔Closer the cell body of the nerve, the greater
the chances that the nerve cell will die and not regenerate; Crushing injury to the
nerve allows recovery more fully than does a cut injury
\Q\.Nerve synapses - ANSWER-✔Spaces between the neurons of the brain and
central nervous systems that must be crossed for messages to be sent.
\Q\.Synaptic boutons - ANSWER-✔where neurotransmitters are stored
\Q\.Neurotransmitters - ANSWER-✔chemical messengers that cross the synaptic
gaps between neurons
\Q\.Presynaptic neurons - ANSWER-✔proximal to the synapse; relay impulses
toward the synapse
, \Q\
\Q\.Postsynaptic neuron - ANSWER-✔distal to the synapse; relay impulses away
from synapse
\Q\.Reticular formation - ANSWER-✔network of connected nuclei that regulate
vital reflexes, such as cardiovascular and respiratory function; maintains
wakefulness
\Q\.Cerebrum - ANSWER-✔Largest part of the brain; responsible for voluntary
muscular activity, vision, speech, taste, hearing, thought, and memory.
\Q\.Gray matter - ANSWER-✔cell bodies
.White matter - ANSWER-✔myelinated fibers
\Q\.Prefrontal lobe - ANSWER-✔goal-oriented behavior, short-term or recall
memory
\Q\.Premotor - ANSWER-✔Programs motor movement; basal ganglia
(extrapyramidal system; efferent pathways outside medulla pyramids)
\Q\.primary motor area - ANSWER-✔primary voluntary motor area; corticospinal
tracts descend down spinal cord; contralateral control