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Slide ()
Slide ()

... Schematic wiring diagram of the basal ganglia. The striatum is the principal input structure of the basal ganglia and receives excitatory glutamatergic input from many areas of cerebral cortex. The striatum contains projection neurons expressing predominantly D1 or D2 dopamine receptors, as well as ...
Histology of Nervous Tissue
Histology of Nervous Tissue

... • Na+ and C- outside, K+ inside • Permeability of K+ 50-100 > than Na+ (leakage channels) – K+ equilibrium potential (-90 mV) has greatest influence over resting potential • Membrane permeability greater for K+ than Na+ or Cl– Na/K electrogenic pump moves ions in 3:2 ratio – Anions (Cl-) have little ...
Purinergic signaling in acupuncture
Purinergic signaling in acupuncture

... source in cellular biochemistry. In 1970, Burnstock et al. suggested that ATP acted as a nonadrenergic, noncholinergic neurotransmitter in the gut (1), and in 1972 he named the extracellular actions of ATP, “purinergic signaling” (since ATP is a purine nucleotide), and formulated the purinergic sign ...
Biology 3201
Biology 3201

...  Nearby Sodium (Na+) channels open to continue the ...
The Nervous System PowerPoint
The Nervous System PowerPoint

... Chemical compounds released from axon terminals (of a presynaptic neuron) into a synaptic cleft ...
cms/lib/NY01001456/Centricity/Domain/535/nervous system tea
cms/lib/NY01001456/Centricity/Domain/535/nervous system tea

... Occurs when blood circulation to the brain area is blocked, as by a blood clot or a ruptured blood vessel and vital brain tissue dies. 28. What is Alzheimers disease? (Honors) Progressive degeneration of the brain that ultimately results in dementia. (Honors) 29. What is Multiple sclerosis? Autoimmu ...
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File - biology4friends

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Chapter 43

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Andrew Rosen - Chapter 3: The Brain and Nervous System Intro
Andrew Rosen - Chapter 3: The Brain and Nervous System Intro

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9 Chapter Nervous System Notes (p

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Part 1: From Ion Channels to behavior, HT2009 Course
Part 1: From Ion Channels to behavior, HT2009 Course

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4.5 Regulation and Variability of Signaling by Nuclear Receptors

... Fig. 4.7 Structure of the RXR-T3R heterodimer in complex with DNA. Illustrated is a complex between the DNA binding domain of the RXR-T3R heterodimer and an HRE with direct repeats of the sequence AGGTCA separated by 4 base pairs. The two receptor subunits contact the hexameric sequences with a rec ...
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... Specific functions of AMPA, NMDA and GABA receptor (including ion permeability, voltage-dependence and reversal potential) Metabotropic receptors Organization and principal function coupling to different transduction pathways G-protein-coupled receptors - Intracellular signaling, second messengers P ...
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Doktryna neuronu

... hemichannels, one in each apposite cell, that match up in the gap junction through homophilic interactions. The channel thus connects the cytoplasm of the two cells and provides a direct means of ion flow between the cells. This bridging of the cells is facilitated by a narrowing of the normal inter ...
An Herbalist`s View of the Nervous System
An Herbalist`s View of the Nervous System

...  Nitric oxide (NO) – a neurotransmitter and neuromodulator in the brain. A gas. Type B A few Neuropeptides: slower acting neurotransmitters Opiate Peptides – widely found in the brain and are inhibitory  Beta Endorphin  Enkephalins  Dynorphins Gut-brain Peptides – found in both brain and int ...
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pharm chapter 8 [3-16

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... 22. Draw a graph and label the following: polarization, stimulus, full depolarization, action potential, repolarization, refractory period. Use units on your y axis. ...
Sensory Processes - Department of Psychology | University of Toronto
Sensory Processes - Department of Psychology | University of Toronto

... – Pattern of electrical activity that occurs in the sense organs, the nerves, and the brain as a result of the stimulus. ...
III. NEURAL COMMUNICATION A. Resting Potential In this section
III. NEURAL COMMUNICATION A. Resting Potential In this section

... If Ach receptors are blocked by mimicking drugs (so there is a deficit of Act), animals’, performance on memory and learning tasks are also impaired. Also, if Ach is increased, there appears to be increased learning and retention. Ach deficit in extreme is found in the brain of ...
structure and function of the neurologic system
structure and function of the neurologic system

... presynaptic neuron: • Signals vesicle holding neurotransmitters to merge with neuron’s plasma membrane in presynaptic area • Neurotransmitters released into synapse ...
The Nervous System funtions and neuron
The Nervous System funtions and neuron

... – Cell body (contains nucleus & other organelles…no centrioles???) – Dendrites (conveys signal to cell body) – Axons (conduct messages away from cell body) – Myelin Sheath (insulation layer composed of Schwann Cells) – Synaptic Terminal (relays signals to other cells by releasing neurotransmitters) ...
Module 3 - DHS Home
Module 3 - DHS Home

... accumbens acts up more in adolescence is due to the different ways the younger brains deal with the neurotransmitter dopamine. • Dopamine, the brain chemical involved in motivation and in reinforcing behavior, is particularly abundant and active in the teen years (Wallis, 2004, para 21) • In additio ...
Neurotransmitters
Neurotransmitters

... Lack of protein in the diet, results in an absence in the amino acids needed to produce neurotransmitters for later release diets low in omega-3 and other fatty acids Synthetic chemicals also affect the release of neurotransmitters, either intentionally or ...
Answers to End-of-Chapter Questions – Brooker et al ARIS site
Answers to End-of-Chapter Questions – Brooker et al ARIS site

... 1. Discuss the organization of nervous systems in animals. Answer: The nervous system of more complex animals is divided into the central nervous system and the peripheral nervous system. The central nervous system is composed of the brain and spinal cord. The function of the brain is to receive and ...
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Endocannabinoid system

The endocannabinoid system is a group of neuromodulatory lipids and their receptors in the brain that are involved in a variety of physiological processes including appetite, pain-sensation, mood, and memory; it mediates the psychoactive effects of cannabis and, broadly speaking, includes: The endogenous arachidonate-based lipids, anandamide (N-arachidonoylethanolamide, AEA) and 2-arachidonoylglycerol (2-AG); these are known as ""endocannabinoids"" and are physiological ligands for the cannabinoid receptors. Endocannabinoids are all eicosanoids. The enzymes that synthesize and degrade the endocannabinoids, such as fatty acid amide hydrolase or monoacylglycerol lipase. The cannabinoid receptors CB1 and CB2, two G protein-coupled receptors that are located in the central and peripheral nervous systems.The neurons, neural pathways, and other cells where these molecules, enzymes, and one or both cannabinoid receptor types are all colocalized form the endocannabinoid system.The endocannabinoid system has been studied using genetic and pharmacological methods. These studies have revealed that cannabinoids act as neuromodulators for a variety of processes, including motor learning, appetite, and pain sensation, among other cognitive and physical processes. The localization of the CB1 receptor in the endocannabinoid system has a very large degree of overlap with the orexinergic projection system, which mediates many of the same functions, both physical and cognitive. Moreover, CB1 is colocalized on orexin projection neurons in the lateral hypothalamus and many output structures of the orexin system, where the CB1 and orexin receptor 1 (OX1) receptors physically and functionally join together to form the CB1–OX1 receptor heterodimer.
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