Ch 2 Flashcards
Consists of brain and spinal cord
Central nervous system
Somatic NS, sensory nerves, motor nerves; MUSCULAR ACTIVITY
Peripheral (PNS)
Internal organs
Autonomic NS
Arouses
Sympathetic NS
Calms
Parasympathetic NS
Enhances short term performance
Sympathetic NS
PNS consists of
Somatic and autonomic
Somatic consists of
Sensory and motor neurons
Autonomic consists of
Sympathetic and parasympathetic
Info processors
Neurons
Provide support and nutrition
Glial cells
Carries signals away from cell body
Axon
Charging the battery for the action potential
Resting potential
What the neuron is doing during the resting potential; negative charge
Hyper Polarized
Becomes move positive during action potential
Depolarized
Charged particle
Ion
Some molecules can come through the membrane
Semipermeable membrane
Amount of depolarization to cause an action potential
Threshold of excititsm
Explain the rising cause of action potential
Voltage faster potassium
The size and shape of action potential is always the same
All or none principle
Corresponds to intensity of the neuron
Frequency of action potentials
Shows us quality
Law of specific nerve emerges
Consists of midbrain and hindbrain
Forebrain
Located at the base of the skull
Hindbrain
