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Nervous System
Term | Definition |
---|---|
Central Nervous System | brain & spinal cord |
Peripheral Nervous System | all parts of nervous system EXCEPT brain & spinal cord |
Neuron | nerve cell that sends and receives electrical impulses |
Parts of a Neuron | axon, dendrite, cell body, nucleus, axon terminal |
Sensory Neurons | gather info about what is happening in and around body |
Motor Neurons | send impulses from brain and spinal cord to other parts of body |
Somatic Nervous System | neurons under your conscious control |
Autonomic Nervous System | controls body functions you don't think about |
Brain | main control center |
Cerebrum | largest part of brain; where you think & memories are stored |
Cerebellum | part of brain that controls balance & controls sensory information |
Medulla | controls involuntary processes (ex. blood pressure, heart rate, etc...) |
Spinal cord | surrounded by protective bones called vertebrae |
Spinal Cord Injury | may block info to and from the brain |