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PSY100H1 Lecture 3: Lecture 3.doc

There are 2 main types of brain cells (glea and neurons) Glea: structural support, transmit information to neurons and other places. Integrate information (send it to the brain, or from the brain, or from one part of the brain to the other) When you learn something new, there are connections (dendrites). If you don"t use a connection- you lose it. Sensory neurons: allows us to hear, see, smell, touch and etc. Motor neurons: make our motor system work- make us go. Dendrites: receive info. from others neurons through tiny receptor sites. Dendrites connected to terminal buttons of neurons, sending info to synapse. Myelin: speeds up conduction of nerve messages. Electrical impulses travel faster when myelin is thicker. Pain is a reminder to teach us what not to do. Interneurons: sends information from one part of the brain to the other. Like you"re trying to get into a club, sodium trying to go in.

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37. Neurotransmitter substances are stored in the of the neuron, and after an action potential fires at the axon terminal, the neurotransmitters A) dendrites, are released into the soma of the neuron B) synaptic vesicles; are released into the axon of the neuron C) glial cells; bind to receptor sites on the post synaptic membrane D) synaptic vesicles, are released into the synapse E) dendrites; are deactivated and broken down in the axon of the neuron

37. Neurotransmitter substances are stored in the of the neuron, and after an action potential fires at the axon terminal, the neurotransmitters A) dendrites, are released into the soma of the neuron B) synaptic vesicles; are released into the axon of the neuron C) glial cells; bind to receptor sites on the post synaptic membrane D) synaptic vesicles, are released into the synapse E) dendrites, are deactivated and broken down in the axon of the neuron

of the transmitting neuron and the 34. Neurotransmitters cross the synaptic gap between the of the receiving neuron. a. axon terminal; dendrite b. dendrite; axon terminal c. nucleus, soma d. soma, nucleus

PSY100H1 Lecture 3: Lecture 3.doc

PSY100H1 Full Course Notes

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