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ANSWERS
central nervous system (CNS) Correct Answers consists of brain and
spinal cord, enclosed within the cranial vault and vertebrae
peripheral nervous system (PNS) Correct Answers composed of cranial
nerves and spinal nerves
also can be divided into somatic and autonomic nervous systems
cranial nerves Correct Answers project from the brain and pass through
foramina in the skull
spinal nerves Correct Answers project from the spinal cord and pass
through intervertebral foramina of the vertebrae
afferent Correct Answers pathways that carry sensory impulses toward
the CNS
efferent Correct Answers descending pathways carrying sensory
impulses from the CNS to effector organs
somatic nervous system Correct Answers consist of motor and sensory
pathways regulating voluntary motor control of skeletal muscle
, autonomic nervous system Correct Answers consists of motor and
sensory components and is involved with regulation of the body's
internal environment through involuntary control of organ systems
-can be further divided into sympathetic and parasympathetic
microtubules Correct Answers made of protein and believed to be
involved in transport of cellular products
neuroglial cells Correct Answers found in the CNS and PNS and can
provide structural support and nutrition for neurons, remove debris,
increase speed of nerve impulses, and play a role in memory
Nissl substances Correct Answers consist of ER and ribosomes and are
involved in protein synthesis
nuclei Correct Answers dense, packed cell bodies in the CNS
ganglia Correct Answers groups of cells bodies in the PNS
dendrites Correct Answers extensions that carry nerve impulses toward
the cell body
dendritic zone Correct Answers the receptive portion of a neuron that
receives a stimulus and continues further conduction