HMB200H1 Lecture 3: Lecture 3 – Synaptic Plasticity.docx

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28 Apr 2012

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Perchemgi neuron found in back of cerebellum. Our minds are somewhat prewired, but mostly glued together by life. During critical periods of time, the glue is very soft . Experience shapes a lot in our life where we see the differences between peoples brains. Transmitters are released on the post synaptic neuron. Calcium channels open and some bind to ______tagman, snares bring vesicles close to axon end. Transmitters bind to other receptors and this binding depends whether there would be an inhibitory or excitatory response. There are several steps into the process. Power of the brain is that it has a diversified population of proteins etc . Eric kandel (nobel prize winner) studied learning and synaptic changes in aplysia californica simple system (1000 neurons in ganglion), neurons can be recognized and recorded from, and trace their connections. Giant snail (sea slug), only have about 20 000 neurons and some you can see with the naked eye.

Related Questions

34. Choose the one(s) that is/are an example of homeostatic control (choose ALL that apply):

		Body temperature
		Energy balance
		Increase in atmospheric pressure
		None is correct

32. Which of the following is TRUE regarding chemical synapses? (Select all that apply.)

		They have gap-junctions
		Vesicles fuse with the presynaptic membrane to release neurotransmitters into the synaptic cleft
		When released from postsynaptic membrane receptors, molecules associated with the neurotransmitter may be returned to the presynaptic cell.
		Neurotransmitter is secreted in the synaptic cleft

blacklion206

Changes in the interaction between neurons or neural plasticityoccur throughout the nervous system. In particular, it is believedthat synaptic plasticity in the hippocampus is critical for storingspecific types of information that are involved in thepsychological process of memory. There is extensive evidenceindicating that specific glutamate receptors atasymmetric/excitatory synapses are involves in specific aspects ofacquisition and maintenance/expression of synaptic plasticity.

Describe the roles of the NMDA and AMPA receptors in synapticplasticity within in the hippocampus. Your answer should addressthe nature of the input necessary to induce synaptic plasticity andhow each of these receptors contribute to that process, including abrief description of downstream signaling. As well as, attributesof these receptors that allow them to perform specific roles insynaptic plasticity

harlequinscorpion706

In order to trigger the releaseof neurotransmitter from a neuron terminal, calciumions:

a. exit the synaptic knob through diffusion

b. bind to proteins on the surface of synaptic vesicles

c. penetrate the synaptic vesicles and bind to molecules ofneurotransmitter

d. bind to ion channels on the neuron membrane and cause them toopen for the transmitter

aquamarineseal847

HMB200H1 Lecture 3: Lecture 3 – Synaptic Plasticity.docx

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