nervous system organization
Ganglion
Collection of nerve cell bodies located in the body (just not the brain or spinal cord)
Housed in the CNS and transport info between the sensory and motor neurons
The ultimate control center of the body overseeing all communication among the organ systems
Brain and spinal cord. Does integration and is the control center
Axon terminals
The end of the axon that releases neurotransmitters at a synapse when a nerve impulse is received; the secretory region
The life support containing the nucleus and most organelles (such as tons of mitochondria)
Respond to light
Largest part of the brain; responsible for voluntary muscular activity, vision, speech, taste, hearing, thought, and memory
Soma (Cell Body)
The life support containing the nucleus and most organelles (such as tons of mitochondria)
Under the cerebrum. Maintains posture and balance. Coordinates timing and patterns for smooth and agile subconscious movements
Receives sensory stimuli to send back to CNS/brain
The main receptor of signals; input region
Nerves
Bundles of axons that extend from the brain and spinal cord to the rest of the body
The ultimate control center of the body overseeing all communication among the organ systems
The life support containing the nucleus and most organelles (such as tons of mitochondria)
Unmyelinated gaps in the myelin sheath that aid in increasing the velocity of nerve signal conduction
Axon
Generates and transmits nerve impulses; the conducting region; also known as a nerve fiber
Supportive cells that provide nutrition, insulation, and help with signal transmission
Respond to mechanical force, like vibration, pressure, stretch, and touch
Collection of nerve cell bodies located in the body (just not the brain or spinal cord)
Myelin Sheath
Covers long axons (nerve fibers) to protect and electrically insulate them to increase the speed of nerve impulse transmission
Excites you/amps you up
Receives sensory stimuli to send back to CNS/brain
Bundles of axons that extend from the brain and spinal cord to the rest of the body
Neurons
Excitable cells that respond to stimuli by conducting impulses to transmit signals
The end of the axon that releases neurotransmitters at a synapse when a nerve impulse is received; the secretory region
The ultimate control center of the body overseeing all communication among the organ systems
Collection of nerve cell bodies located in the body (just not the brain or spinal cord)
Dendrites
The main receptor of signals; input region
Conduct impulses from CNS 🡪 smooth muscles, cardiac muscles, and glands. Controls involuntary movements of the heart, lungs, stomach, etc.
Housed in the CNS and transport info between the sensory and motor neurons
Calms you down; does the opposite of everything the sympathetic does