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21 Cards in this Set

  • Front
  • Back
Name the parts of the Nervous System
Central and Peripheal
Name the parts of the Peripheal Nervous System
Autonomic and Somatic
Name the parts of the Autonomic Nervous System
Sympathetic and Parasympathic
Name the types of nerves
Sensory, Motor and Interneurons
How are reflexes possible?
Simple pathways that can work even without the message going to the brain.
Which system controls the skeletal muscles?
Somatic NS
Which system controls the glands and organ muscles?
Autonomic NS
The parasympathetic nervous system does what and uses which areas of the spinal cord?
Calms, uses the "craniosacral" = near brain and lower pelvic
The sympathetic nervous system does what and uses which areas of the spinal cord?
Arousal, uses the "thoracolumbar" = shoulder thru the mid
At what stage of a neuron firing is the neuron depolarized?
Action Potential
At what stage of a neuron firing is the neuron hyper polar?
Refractory period
At what stage of a neuron firing is the neuron hypo polar?
beginning stages of the Action Potential
What type of ions make up the depolarizing current in an axion?
positive Na (sodium)/K (potassium)
What type of ions make up the hyperpolarizing current in an axion?
negative ions
What type of cells are the most numerous?
glial cells
Which type of glial cell provides nutrition to neurons?
Astrocytes
Which type of glial cell insulate neurons as myelin?
Oligodendrocytes
Which type of glial cell is in the CNS and provides a segment of myelin for several axons?
Oligodendro cells
Which type of glial cell is in the PNS and provides a sheath on a single axon?
Schwann cells
Nerves are part of which system?
PNS
What do nerves do?
connect muscles, glands & sense organs to the CNS