Nervous Tissue and the Nervous System“If the human brain were simple enough for us to understand, we would be too simple to understand it” ~ Unknown (Kramer 1994, Listening to Prozac)1Image: The Body Worlds Exhibit.
Nervous Tissue•Neurons•Glial cells (neuroglia)–Support, nourish, and insulate neurons2Moyes CD, and Schulte PM.Principles of Animal Physiology. San Francisco: Pearson Benjamin Cummings, 2006. p 171.
Basic nervous system functions include sensation, integration, and responseStructural Organization•CNS (brain and spinal cord)•PNSFunctional Organization•Sensory: afferent division •Integration•Response: efferent division–Somatic nervous system–Autonomic nervous system•Sympathetic nervous system•Parasympathetic nervous system3Moyes CD, and Schulte PM.Principles of Animal Physiology. San Francisco: Pearson Benjamin Cummings, 2006. p 308.
Three functional classes of neurons4Interneuron Afferent Neuron (Sensory)Efferent Neuron (Somatic) Efferent Neuron (Autonomic) Fox SI. Human Physiology. 14thed. New York NY: The McGraw-Hill Companies Inc, 2016. p 165.