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El Nervous System

QuestionAnswer
Cell Body Contains the nucleus and other cellular organelles.
Dendrite Short abundantly branched slender extension of the cell body that receives stimuli.
Axon Long slender extension of the cell body that sends nerve impulses.
Sensory Neurons Receive the initial stimulus.
Motor Neurons Stimulate effectors, target cells that produce some kind of response.
Associated Neurons Located in the spinal cord or brain and receive impulses from sensory neurons or send impulses to motor neurons. They evaluate impulses for appropriate responses.
Central Nervous System Brain and spinal Cord
Peripheral Nervous System Consists of sensory neurons that transmits impulses to the CNS and motor neurons that transmit impulses from the CNS to effectors. Can be divided into:somatic-directs the contraction of skeletal muscles and autonomic controls the activities of organs
Sympathetic Nervous System Involved in the stimulation of activities that prepare the body for action such as increasing heart rate
Parasympathetic Nervous System Activates tranquil functions such as digestive enzymes in stomach.
Created by: shortee
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