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32. Sensory organs. organ of smell and taste
32. Sensory organs. organ of smell and taste

... • Between the papillae are the taste buds, which provide the sense of taste. ...
The Neuron: The Basic Unit of Communication Neuron: Basic
The Neuron: The Basic Unit of Communication Neuron: Basic

... How do these drugs affect neural communication and behavior (page 178, 179)? Many drugs, especially those that affect moods or behavior, work by interfering with normal functioning of neurotransmitters in the synapse. How this occurs depends on the drug, such as the following: 1. Drugs can mimic spe ...
Chapter 6 - Sensory - Austin Community College
Chapter 6 - Sensory - Austin Community College

... Voltage-regulated calcium channels in the axon termincal open and allow Ca2+ to enter the axon Ca2+ inside the axon terminal causes some of the synaptic vesicles to fuse with the axon membrane and release ACh into the synaptic cleft (exocytosis) The synaptic end bulbs releases acetylcholine from the ...
Lewy Body Diseases
Lewy Body Diseases

...  nucleus basalis more severely involved in DLB than in AD  its cholinergic neurons innervate cortex and are normally involved in sleep, dreams and attention  loss of those neurons produces visual hallucinations, similar to what happens with anesthetics (eg. scopolamine) that block ACh receptors  ...
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Myers Module Four

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... b. functional- based on the direction in which they transmit nerve impulses - sensory (afferent) – transmit form receptors in skin, sensory organs muscles, joints, and viscera to the brain and spinal cord - motor (efferent) – convey impulses from brain and spinal cord to effectors which may be muscl ...
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BIO 132

... of motor responses by environmental stimuli.  The VTA seems to be involved in “rewarding” behavior. Note this is not the same as feeling pleasure. The VTA pairs behavior or sensation with ...
The Nervous System
The Nervous System

... synapse. This junction can be with another neuron, muscles or glands. All receiving cells have receptors. Chemicals, called neurotransmitters, are released into the synapse to transmit the impulse from one neuron to the next, or to the receptor tissue. ...
BHS 150.1 – Biochemistry II Date: 2/8/2013, 2sndhalf Notetaker: Kim
BHS 150.1 – Biochemistry II Date: 2/8/2013, 2sndhalf Notetaker: Kim

... 7. In the retina, glutamate release onto the bipolar on cells will result in a: cGMP sensitive-Na+ channel closing 8. Chloinergic agonists lower IOP by contracting the ciliary body muscle, which stretches the TM causing channels to: Open and increase outflow 9. What is the function of connexins in t ...
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Tactile and Body Senses

... tremendous psychological ramifications in areas like child development, persuasion, healing, and reducing anxiety and tension. ...
Nerve Impulses - manorlakesscience
Nerve Impulses - manorlakesscience

... change in the charge across the axon membrane. A nerve impulse is a wave of electrical change (an action potential) that passes rapidly along an axon. After the nerve impulse has been transmitted – the distribution of ions across the cell membrane is restored. ...
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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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