Amy Stieler Stewart lectures Flashcards
(39 cards)
Three main functions
– Sensory Input
– Integration
– Motor Output
voluntary actions would involve what nervous system branch?
somatic
Involuntary actions would involve what nervous system branch?
autonomic
Two main divisions of the nervous system
Central and peripheral
Peripheral is further divided into two functional divisions
Sensory (afferent) and Motor (efferent)
which division of the peripheral nervous system division is afferent?
sensory division
which division of the peripheral nervous system division is efferent?
motor division
what structures comprise the CNS
Brain spinal cord (integrative control centers)
afferent nerves conduct impulses which direction
convey impulses from skin, skeletal muscles, and
joints to CNS (arrive)
somatic nerve fibers conduct impulses from what to what
CNS to skeletal muscles
Efferent nerves conduct signals which way?
Transmits impulses from CNS to effector organs (Muscles and glands) (exit)
what are the two divisions of your motor division
somatic and autonomic (ANS)
-Regulates smooth muscle, cardiac muscle, and glands
Autonomic nervous system
-Voluntary nervous system: Conscious control of skeletal muscles refers to what
Somatic division of the motor division split of the peripheral division of the nervous system
Autonomic nervous system Consists of
visceral motor nerve fibers
-Involuntary nervous system
Autonomic nervous system
-Visceral sensory fibers:
convey impulses from visceral organs (internal
organs, blood vessels) to CNS
Somatic sensory fibers
convey impulses from skin, skeletal muscles, and
joints to CNS refers to what
the two functional subdivisions of the ANS system work in
opposition to each other
sympathetic and parasympathetic
What does this refer to: Cell bodies are located outside of spinal cord
Afferent Neurons of the Sensory division of the PNS
Two principal cell types of Nervous system are
Neuroglia and Neurons
What does this refer to: Cell bodies are located in the Ventral Horn of the Spinal Cord
Efferent Neurons of the Motor Division of the Peripheral Nervous system
small cells that surround and wrap delicate
neurons
Neuroglia (glial cells)
