PSYC 101 Lecture Notes - Lecture 3: Inhibitory Postsynaptic Potential, Frontal Lobe, Parietal Lobe
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PSYC 101 Full Course Notes
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The cell body (soma): manufacture new components, contains nucleus for protein manufacture. Neurotransmitters: chemical messengers specialized for communication from neuron to another neuron. Synapses: tiny fluid-filled space between neurons through which neurotransmitters travel. Synaptic cleft: gap into which neurotransmitters are released from axon terminal. Glial cells: formation of myelin and blood brain barrier, responds to injury, removes debris and enhances learning and memory. Oligodendrocyte: promotes new connections among nerve cells and releases chemicals to aid in healing. This sheath contains numerous gaps all way along the axon called nodes, which help neuron conduct electricity more efficiently. Myelin sheath: sufferers of multiple sclerosis, loss of insulation of neural messages. Resting potential: when there are no neurotransmitters acting on the neuron. Threshold: when the electrical charge inside the neuron reaches a high enough level relative to the outside. Action potential is triggered (electrical impulse that travels down the axon, triggering the release of neurotransmitters)
