'Chemical synapses' diaporamas de présentation

Warm up 03/20 *Draw the brain and label

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??????. ???) ?????? ???????? ?) ?????? ???????. 2. 2. Types of cell-cell junctions: Tight junctions membranes fused Gap junctions close juxtaposition (2-4 nm) electrical synapse Chemical synapses synaptic cleft (20-30 nm) polarized. Electrical Synapse (rare).

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Nerve Fiber Classification

Nerve Fiber Classification. Nerve fibers are classified according to: Diameter Degree of myelination Speed of conduction. Synapses. A junction that mediates information transfer from one neuron: To another neuron To an effector cell

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S?NAPT?K ?LET?M

S?NAPT?K ?LET?M. Dr. Ay?e DEM?RKAZIK. About this Chapter. How cells communicate Electrical and chemical signals Receptor types and how they function Local regulation of cells Modification of receptors and signals Homeostatic balance depends on communication

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Chapter 11: Nervous Tissue

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Chemical and Electrical Synapses

Chemical and Electrical Synapses. Two Kinds of Synapses. Chemical Electrical Both types of synapses relay information, but do so by very different mechanisms. Much more is known about chemical than about electrical synapses.

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Nervous Tissue

A. Nervous system divisions B. Functional anatomy of nervous tissue 1. Neuroglia a. Types of neuroglia b. Myelination 2. Neurons a. Parts of a neuron b. Classification of

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SYNAPSES AND NEURONAL INTEGRATION

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Neurotransmitters, Neurotransmitter receptors and their effects

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Synapses

Synapses. Eventually, as an action potential passes down the axon, it reaches the end of the axon and all of its branches These branches may form junctions with the dendrites of other neurons, muscle cells, or gland cells; such intercellular junctions are called synapses

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Synapses

Synapses. By Dr.D.Fisher. Anatomy of a Synapse. Figure 8-25. Anatomy of a Synapse. Chemical Synapses Components Presynaptic terminal Synaptic cleft Postsynaptic membrane Neurotransmitters released by action potentials in presynaptic terminal Synaptic vesicles Diffusion

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Synaptic Transmission

Synaptic Transmission. Cell-to-Cell Communication Between Neurons Takes Place At Synapses. F8-2.

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Rabies Virus

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Rabies Virus

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What is a synapse? 6.5.6

What is a synapse? 6.5.6. A junction that permits a neuron to pass a signal, electrical or chemical, to another cell Electrical Synapses Two neurons are close together , with gap junctions An impulse travels from one membrane to the next Causes a ction p otential in the second neuron

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Schwann Cells

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