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Sherwood 6B
Sherwood 6B

... • Olfactory receptors in nose are specialized endings of renewable afferent neurons • Olfactory mucosa – 3cm2 of mucosa in ceiling of nasal cavity – Contains three cell types • Olfactory receptor cell – Afferent neuron whose receptor portion is in olfactory mucosa in nose and afferent axon traverses ...
Nervous System Part I Flashcards
Nervous System Part I Flashcards

... body look like? ...
Receptive Fields
Receptive Fields

... Introduction: Given the enormity of the sensory space through which our nervous system must guide us, it comes as intuitive that our sensory systems should parcel out sensitivity to specific sensory regions over large populations of neurons. Within these large populations, there are neurons that are ...
Biology and Behavior note frame
Biology and Behavior note frame

... a. The axon emerges from the _______________ _______________ as a single _______________ _______________ (longer than a _______________) which branches and ends in tips called _______________ _______________ (a.k.a. _______________ _______________, _______________ _______________, _______________ _ ...
Lecture Outline ()
Lecture Outline ()

... – neurons stimulate each other in linear sequence but one cell restimulates the first cell to start the process all over ...
Lecture 3 NS_2015
Lecture 3 NS_2015

... Step 5: The transmitter is released into the extracellular space in quantized amounts and diffuses passively across the synaptic cleft (20-30 nm thick). Step 6: Some of the transmitter molecules bind to receptors in the postsynaptic membrane, and the activated receptors trigger some postsynaptic eve ...
chapter 11 the somatosensory system and topographic organization
chapter 11 the somatosensory system and topographic organization

... properties of the receptor cell (e.g., different receptor sites for specific molecules in taste or olfactory cells). Filter properties may also result from various non-neural, non-receptor structures associated with the excitable cell (e.g., different types of connective tissue structures associated ...
Pathophysiology of Epilepsy
Pathophysiology of Epilepsy

... Modulation of second messengers, e.g. Inositol, cAMP ...
Beta-Adrenergic Receptors and Fat Loss
Beta-Adrenergic Receptors and Fat Loss

... volves either homologous desensitization, where the receptor’s active site is translocated within the cell membrane so that the binding site is no longer positioned extracellularly, or it involves heterologous desensitization, where the receptor is phosphorylated, rendering it incapable of participa ...
2.7 notes
2.7 notes

... – Lowest level of stimulation energy needed to detect a stimulus 50 percent of the time ...
The Neuron
The Neuron

... 4) Axon terminals contain tiny, oval sacs (synaptic vesicles) which contain chemicals known as neurotransmitters. 5) These neurotransmitters cross the synaptic space *Synaptic vesicles and neurotransmitters are other two parts needed for a synapse. ...
The basics of brain communication
The basics of brain communication

... and can occupy acetylcholine receptor sites, stimulating skeletal muscles and causing the heart to beat more rapidly. 2. Drugs can mimic or block the effects of a neurotransmitter by fitting into receptor sites and preventing the neurotransmitter from acting. • The drug curare produces almost instan ...
Unit 3 PowerPoint Biological basis of behavior-
Unit 3 PowerPoint Biological basis of behavior-

... Endocrine system, p. 62 Hormones, p. 62 Adrenal glands, p. 63 Pituitary gland, p. 63 ...
www.cmu.edu.cn
www.cmu.edu.cn

... Fatty acid derivatives: Extracellular molecules Prostaglandins Effect by intracellular receptors ...
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(2) G Protein-Coupled Receptors

... Fatty acid derivatives: Extracellular molecules Prostaglandins Effect by intracellular receptors ...
NEURO PresentationWORKING students A
NEURO PresentationWORKING students A

... • extracts from damaged tissue cause pain when injected under the skin • bradykinin causes the most pain and may be the single agent most responsible for causing the tissue damage type of pain – also the local increase in potassium ion concentration and action of enzymes can contribute to pain ...
Acetylcholine
Acetylcholine

... Another relative of norepinephrine and epinephrine is dopamine, discovered to be a neurotransmitter in the 1950s by another Swede, Arvid Carlsson. It is an inhibitory neurotransmitter, meaning that when it finds its way to its receptor sites, it blocks the tendency of that neuron to fire. Dopamine i ...
Nervous System - wondersofscience
Nervous System - wondersofscience

... • Axon: Carries impulse to axon terminal • Axon Terminal: Via neurotransmitters, passes on the impulse to another neuron or nerve – A synapse is the transition zone between 2 neurons that allows a nerve impulse to be transmitted ...
Biological explanation of schizophrenia (1)
Biological explanation of schizophrenia (1)

... can cause symptoms which resemble those present in psychosis, particularly after large doses or prolonged use. This is often referred to as "amphetamine psychosis" or "cocaine psychosis," but may produce experiences virtually indistinguishable from the positive symptoms associated with schizophrenia ...
Neuron PowerPoint
Neuron PowerPoint

...  Myelinated axons speed neuronal transmission by about 15 times.  Most neurons are myelinated, however, not all. ...
1) Corticotropin releasing hormone secretion would not raise the
1) Corticotropin releasing hormone secretion would not raise the

... 5) Which type of diabetes would be associated with an absence of beta cells in pancreatic islets? a) Type 1 or IDDM b) Type 2 or Non-IDDM c) Diabetes Insipidus d) Both A and B 6) True/False: Cortisol is a glucocorticoid produced in the zona glomerulosa of the adrenal medulla and it causes glycogen i ...
The Nervous System * Crash Course Biology
The Nervous System * Crash Course Biology

... When an action potential begins _Na+ (sodium)__ channels open and _Na+__ rushes in making it less negative inside. With enough stimulus it reaches a threshold and more _Na+_ channels respond and open and let ____ ions in. This happens in one tiny area of the neuron but the change in voltage creeps o ...
ch15 autonomic nervous system
ch15 autonomic nervous system

... b. Activation of muscarinic receptors can cause either excitation or inhibition depending on the cell that bears the receptors. B. Adrenergic Neurons and Adrenergic Receptors 1. The adrenergic neurons release norepinephrine (Figure 15.7) and include most sympathetic postganglionic neurons. 2. The ma ...
Hungry for Pleasure, Hungry for Food
Hungry for Pleasure, Hungry for Food

... us to separate taste from reward. We can deliver pure taste through the sucralose or pure reward through the laser. Neither of these alone is more appealing to a mouse than sucrose, but together they are.” For humans, the results shed light on the interplay between metabolic signals that convey hung ...
Malignant Hyperthermia
Malignant Hyperthermia

... The change in voltage is detected by the dihydropyridine receptor (DHP) A voltage-dependent, L-type calcium channel The DHP receptors physically interact with Ryanodine (RyR-1) receptors on the sarcoplasmic reticulum  which contains Ca++ Activated DHP receptors induce a conformational change in RyR ...
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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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