'Postsynaptic cell' presentation slideshows

Chapter 23: Nervous and Motor Systems

Chapter 23: Nervous and Motor Systems. Actions, reactions, sensations, and addictions: meet your nervous system. Lecture by Danielle DuCharme, Waubonsee Community College. Learning Objectives. By the end of this chapter, you should be able to: Define what the nervous system is

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Chapter 3 Synapses

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Topic 2d Neurotransmission

Topic 2d Neurotransmission. Jan 2014. Transmission of Signal Strength at Synapse. Response of postsynaptic cell influenced by amount of neurotransmitter in synapse and number of receptors. Signal Transmission at a Chemical Synapse. Figure 4.16. Neurotransmitters.

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Fig 2.9

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Muscle excitation

Muscle excitation. The excitation of muscles depend on the arrival of a stimulus to the muscle cell membrane to generate an excitation ( action potential ) in the muscle membrane.

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Chapter 44 Neurons and Nervous Systems

Chapter 44 Neurons and Nervous Systems. Biology 102 Tri-County Technical College Pendleton, SC. Functions of Nervous System. Sensory input is conduction of signals from sensory receptors to integration centers

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Neural Plasticity: Long-term Potentiation

Neural Plasticity: Long-term Potentiation. Lesson 15. Neural Plasticity. Nervous System is malleable learning occurs Structural changes at synapses Changes in synaptic efficiency Long-term potentiation Long-term depression LTP & LTD throughout brain Many different mechanisms ~.

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Storage capacity: consider the neocortex ~20*10^9 cells, 20*10^13 synapses

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Nervous System

Nervous System. Scope. Humans have 10 12 neurons You only have 10 9 DNA bases Typical cells are 10 microns in diameter Some of your neurons are 3 feet long The longest neurons in Giraffe 3 meters Complex program directs connections You photoreceptors can detect down to 1 photon

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Animal Cell

Animal Cell. Chromatin. Axonal Membrane of a Neuron. Ion Channels. Cell membrane proteins that pass ions in and out of the cell Voltage-Gated Ion Channels gates are regulated by membrane voltage Chemical-Gated Ion Channels (also called Receptors )

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Synaptic Action

Synaptic Action. Synaptic Potentials: EPSP IPSP. Synaptic Potentials. Excitatory Postsynaptic Potential (EPSP) triggered by excitatory neurotransmitters open ligand-gated Na + channels allows Na + to flow inside the cell causing a slight depolarization of the postsynaptic cell

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Overview of the Nervous System

Overview of the Nervous System. Breakdown The Nervous system is divided into two parts the CNS (central nervous sys) and the PNS (peripheral nervous sys) These two systems consists of the brain, spinal cord, and neurons. Central Nervous System.

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