BIO 2870 Lecture Notes - Lecture 7: Minor Disturbance, Action Potential, Passive Transport

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23 Aug 2016
Department
Course
Review
Neuron and neuroglia
Cell boy and axon
Ganglion and ganglia
Fibers and nerves
Synapse
Pre and post ganglionic fibers
*4 tissue types: epithelial, connective, nervous, muscular
Neural Tissue
-The nervous system
-includes all neural tissue in the body
-Neural tissue
-contains two kinds of cells
-Neurons:
-Cells that send and receive signals
-Neurons perform all communication, information processing, and
control functions of the nervous system
-Neuroglia (glial cells):
-cells that support and protect neurons
-neuroglia preserve physical and biochemical structure of neural tissue
and are essential to survival and function of neurons
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*connect to cell body at axon hillock
ex of synapse…neuromuscular junction
-chem messenger—neurotransmitter (achetocholine)
Nervous tissue: tissue composed of specialized cells that are able to create electrical messages
and transmit these signals to other parts of the body
-brain, spinal cord, nerves
Organs of Nervous System
-brain and spinal cord
-sensory receptors of sense organs (eyes, ears, etc)
-nerves connect nervous system with other systems
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