SPHS-S 201 Lecture Notes - Lecture 3: Cerebral Cortex, Inferior Parietal Lobule, Frontal Bone
29 Jul 2018
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Document Summary
Human nervous system: highly complex, designed to protect, nourish, and maintain the body, help us with our basic and complex needs. Neurons: nerve cells specialized for communication within the body, function: transmit information to other nerve cells, muscle, or glands, the brain contains up to 100 billion neurons depending on the species, most neurons share some similar components. Structure of a neuron: the neuron consists of, soma cell body, dendrites receiver of information, axon transmits information away from the soma, most neurons have only one axon. Inside the terminal boutons: contain neurotransmitters, synapse, also called synaptic cleft, gap between two neurons. Neurotransmitters: located within the synaptic vesicles, special chemicals, facilitate synaptic transmission, different types, examples: gaba, acetylcholine, dopamine, seratonin. Neural tissue is special in comparison because they have the ability to communicate with others. The motor unit connects a nerve fiber to a muscle. Motor unit is responsible for the transfer of information.
