Organization of the nervous system Flashcards
nerves of the PNS that originate directly from the brain
cranial nerves
most PNS nerves, emerge from the spinal cord
spinal nerves
conduct nerve impulses toward the CNS
afferent
conduct nerve impulses away from the CNS
efferent
afferent nerve fibers are usually called
sensory nerve fibers
efferent nerve fibers are usually called
motor nerve fibers
a nerve that only contains sensory fibers
sensory nerve
a nerve that only contains motor nerves fibers
motor nerve
nerves that contain both sensory and motor nerve fibers
mixed nerves
Most nerves in the PNS are what kind of nerve fiber
mixed nerves
conscious or voluntary control of skeletal muscles is which nervous system
somatic nervous system
voluntary initiation of efferent impulses
somatic motor function
impulses sent to the CNS from receptors in the muscles, skin, eyes or ears - because they are consciously perceived by the brain
somatic sensory function
nervous system that controls and coordinates automatic functions
autonomic nervous system
which nervous system is the “self regulating” system
autonomic nervous system
