Integration - CORRECT ANSWER-Interpretation of sensory input.
Motor Output - CORRECT ANSWER-Response to stimuli.
Nervous System - CORRECT ANSWER-1. Sensory Output (Sense).
2. Integration (React/Think).
3. Motor Output (Move).
CNS - CORRECT ANSWER-Central Nervous System; Brain and spinal cord.
Integration and command center.
PNS - CORRECT ANSWER-Peripheral Nervous System; paired spinal and cranial
nerves. Carries messages to and from the spinal cord and brain.
Sensory Afferent Fibers - CORRECT ANSWER-Carry impulses from skin, skeletal
muscles, and joints to the brain (sense input).
Visceral Afferent Fibers - CORRECT ANSWER-Transmit impulses from visceral organs
to the brain (sense of the guts).
Motor Division - CORRECT ANSWER-Efferent; Transmits impulses from the CNS to
effector organs (output).
Somatic Nervous System - CORRECT ANSWER-Voluntary; conscious control of
skeletal muscles.
, Autonomic Nervous System - CORRECT ANSWER-Involuntary; regulates smooth
muscle, cardiac muscle, and glands.
Neurons - CORRECT ANSWER-Excitable cells that transmit electrical signals.
Supporting Cells - CORRECT ANSWER-Neuroglia/Glial Cells; Cells that surround and
wrap neurons.
Neuroglia - CORRECT ANSWER-The supporting cells (glial cells) provide a supportive
scaffolding for neurons, segregate and insulate neurons, guide young neurons to the
proper connections, and promote health and growth.
Astrocytes - CORRECT ANSWER-Most abundant, versatile, and highly branched glial
cells; they cling to neurons and their synaptic endings, and cover capillaries. They also
support and brace neurons, anchor neurons to their nutrient supplies, guide migration of
young neurons, and control the chemical environment.
Microglia - CORRECT ANSWER-Small, ovoid cells with spiny processes or phagocytes
that monitor the health of neurons.
Ependymal Cells - CORRECT ANSWER-Range in shape from squamous to columnar
and they line the central cavities of the brain and spinal column.
Oligodendrocytes - CORRECT ANSWER-Branched cells that wrap CNS nerve fibers.
Schwann Cells - CORRECT ANSWER-Neurolemmocytes; surround fibers of the PNS.
Envelopes an axon in a trough, encloses the axon with its plasma membrane, and has
concentric layers of membrane that make up the myelin sheath.
Satellite Cells - CORRECT ANSWER-Surround neuron cell bodies with ganglia.
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