PSY 0010 Lecture Notes - Lecture 3: Hypothalamus, Corpus Callosum, Temporal Lobe
12 Sep 2016
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Document Summary
Dendrites of one neuron receive messages from the surrounding neurons and send messages to the cell body. Cell body fires action potential which travels down the axon to the terminal branches. Terminal branches release neurotransmitters into the synapse. Neurotransmitters bind to receptor sites on the dendrites of the receiving neuron. Some drugs block the reuptake of neurotransmitters. Ssris (selective serotonin reuptake inhibitors): block the reuptake of serotonin (neurotransmitter involved in regulation of emotions) Neurotransmitters bind to the receptors of the receiving neuron in a key-lock mechanism. Curare poisoning paralyzes its victims by blocking ach receptors involved in muscle movement. Sensory neurons: carry info from sensory receptors to the brain and spinal cord. Motor neurons: carry info from brain and spinal cord to muscles. Brain: contains a majority of the body"s neurons clustered together in neural networks. Responsible for decision-making concerning most of the body"s thoughts and movements. Spinal cord: carried info to and from the brain (from pns)
