nervous system Flashcards
what does the central nervous system consist of
brain
spinal cord
what does the peripheral nervous system consist of
made up of nerves that originate from the brain or spinal cord
what are the 2 divisions of the peripheral nervous system
sensory nervous system
motor nervous system
what is the role of the sensory nervous system
carry electrical signals from receptors towards CNS
what is the role of the motor nervous system
carry nerve impulses away from CNS to effectors
what is the role of the voluntary nervous system
carries nerve impulses to body muscles and is under voluntary conscious control
what are the 2 divisions of the motor nervous system
voluntary nervous system
autonomic nervous system
what is the role of the autonomic nervous system
carries nerve impulses to glands, smooth muscles, cardiac muscle is involuntary so is sub conscious
what is the spinal cord
columns of nervous tissue that runs along back
lies in vertebral column for protection
