11. Neurotransmitters are chemicals found in the synaptic vesicles which, when released, has an effect on the next cell. 12. The excitatory neurotransmitter causes the receiving cell to fire. 13. The agonists mimic or enhance the effects of a neurotransmitter on the receptor sites of the next cell, increasing or decreasing the activity of that cell.
14. The spinal cord is a long bundle of neurons that carries messages to and from the body to the brain that is responsible for very fast, lifesaving reflexes. 15. A neuron that carries information from the senses to the central nervous system and is also known as the afferent is called a sensory neuron . 16. All nerves and neurons that are not contained in the brain and spinal cord but that run through the body itself are in the peripheral neurons system. 17. The division of the PNS consisting of nerves that carry information from the senses to the CNS and from the CNS to the voluntary muscles of the body is the somatic nerves system. 18. The autonomic nerves system division of the PNS consisting of nerves that control all of the involuntary muscles, organs, and glands sensory pathway nerves coming from the sensory organs to the CNS consisting of sensory neurons. 19. The part of the ANS that is responsible for reacting to stressful events and bodily arousal is called the sympathetic division of the nervous system.
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- Spring '17
- John Jackson