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Functional Organization of Nervous Tissue
Functional Organization of Nervous Tissue

... Neurotransmitters • Neurotransmitter only "fits" in one receptor. • Not all cells have receptors. • Neurotransmitters are excitatory in some cells and inhibitory in others. • Some neurotransmitters (norepinephrine) attach to the presynaptic terminal as well as postsynaptic and then inhibit the relea ...
Larry M. Jordan, Urszula Sławińska
Larry M. Jordan, Urszula Sławińska

... the locomotor CPG. The RS systems that are effective for eliciting locomotion are distinguishable based upon their transmitter content. Pathways containing excitatory amino acids (EAA) such as glutamate project from magnocellular and gigantocellular parts of the RS system to the spinal cord. Other R ...
Acetylcholinesterase in Neuron Survival and
Acetylcholinesterase in Neuron Survival and

... Each year 10,000 new spinal cord injury occurs in USA ...
Chapter 48 Nervous System
Chapter 48 Nervous System

... The nervous, endocrine and immune systems often cooperate and interact in regulating internal body functions to maintain homeostasis. The ability of an organism to survive and maintain homeostasis depends largely on how it responds to internal and external stimuli. A stimulus is an agent or a change ...
PSB 4002 - Developmental Psychobiology Laboratory
PSB 4002 - Developmental Psychobiology Laboratory

... • Over about 277 days of gestation, this one fertilized cell will become trillions of cells, all organized into the various glands, tissues, organs, etc. that constitute our brain/body system. ...
Name
Name

... cannot be conducted. 5. _____ The action potential is an all-or-none response. 6. _____ In an adult, the nervous system is replete with both electrical and chemical synapses. 7. _____ Rapid succession stimulation of a postsynaptic neuron by a synaptic knob can have a cumulative effect over time that ...
SELECT THE ONE BEST ANSWER OR COMPLETION 1. The
SELECT THE ONE BEST ANSWER OR COMPLETION 1. The

... A. if only 1, 2 and 3 are correct B. if only 1 and 3 are correct C. if only 2 and 4 are Correct D. if only 4 is correct E. if all are correct 40. Hair cells of the vestibular system (1) release transmitter even when not stimulated (2) do not generate action potentials (3) have only one kinocilium pe ...
True or False Questions - Sinoe Medical Association
True or False Questions - Sinoe Medical Association

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ELECTRODEPOSITION OF ALLOYS, 1930 TO 1940.1 By Ci
ELECTRODEPOSITION OF ALLOYS, 1930 TO 1940.1 By Ci

... Chemoreceptor activation was achieved by a brief period of hypoxia. Animals were ventilated with 100% N2 for 15 s. Microinjections. The stable substance P analog [pGlu5, MePhe8, Sar9]SP(5–11) (DiMe-SP, 600 pmol in 50 nl; Sigma), the highly selective NK1 receptor agonist [Sar9, Met (O2)11]SP [Sar9, M ...
CHAPTER 12- Nervous Tissue
CHAPTER 12- Nervous Tissue

... A) occur when there is direct contact between electrically excitable cells. B) allow rapid communication between cells. C) allow synchronization of cellular activities. D) A and B are correct. E) A, B and C are correct. 29) At a chemical synapse, A) two cells communicate directly via connexons at ga ...
JARINGAN SYARAF TIRUAN
JARINGAN SYARAF TIRUAN

... 1. The majority of neurons encode their activations or outputs as a series of brief electrical pulses (i.e. spikes or action potentials). 2. The neuron’s cell body (soma) processes the incoming activations and converts them into output activations. 3. The neuron’s nucleus contains the genetic materi ...
Transmembrane Domain–Dependent Functional
Transmembrane Domain–Dependent Functional

... dimerization or oligomerization is mediated by specific, potentially functional protein regions of these receptors. For example, the extracellular domain plays a crucial role in EGFR dimerization[14], while the transmembrane domain of TGFβR plays a pivotal role in its activation[12]. In all of these ...
Slide 1 - Elsevier Store
Slide 1 - Elsevier Store

... selective stabilization and elaboration of branches toward appropriate target areas (gray and white bars) that is essential for circuit refinement. These processes are not just important during development, but underlie changes in circuit refinement in the mature nervous system. Source: From Bestman ...
Autonomic vs. Somatic Nervous System
Autonomic vs. Somatic Nervous System

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Neuro Review for Quiz 1 (lectures organized according
Neuro Review for Quiz 1 (lectures organized according

...  Reversal potential – no flow upon activation of the channel, is there a membrane potential? It does not have to be zero. But it is zero in the case of Na and K.  Cl does not affect resting potential but increased Cl permeability will tend to hyperpolarize the cell, thereby making it harder for ce ...
Organic Context of Short-term Behavioral Adaptation
Organic Context of Short-term Behavioral Adaptation

... A. The Origin of Species and Instincts There are three elements to evolution. 1) variation., 2) selection, and 3) nonregressive replication. For example, if there are fast and slow rabbits and the slow rabbits are eaten more often than fast rabbits and fast rabbits tend to produce fast rabbits, then ...
sensory neurone
sensory neurone

... a) receptor-->sensory neurone-->relay neurone-->motor neurone--> effector b) receptor--> motor neurone-->relay neurone-->sensory neurone-->effector ...
Nervous Systems
Nervous Systems

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Components of Decision-Making
Components of Decision-Making

... Giordano, L. A., et al. (2002). "Mild opioid deprivation increases the degree that opioid-dependent outpatients discount delayed heroin and money." Psychopharmacology 163(2): 174182. Gotter, A. L., et al. (2012). "International Union of Basic and Clinical Pharmacology. LXXXVI. Orexin receptor functi ...
Synapses - UBC Zoology
Synapses - UBC Zoology

... • 80-90% of all presynaptic terminals terminate on dendrites • Most can't produce action potentials (too few or no Na+ channels) • Transmit current by passive spread down dendrites to the soma • Therefore the membrane potential decreases as move along dendrite due to current loss thanks to our frien ...
NEUROPHYSIOLOGY
NEUROPHYSIOLOGY

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Biological Bases of Behavior: Neural Processing and the Endocrine
Biological Bases of Behavior: Neural Processing and the Endocrine

... 6) This depolarization causes the next gates to open, following a pattern like dominoes until it hits the end of the axon. 7) Once a gate has been opened and depolarization has taken place, the positively charged sodium ions are pumped back out of the axon. This is called the refraction period. 8) T ...
RESPIRATORY DRUGS 1. ANTITUSSIVES
RESPIRATORY DRUGS 1. ANTITUSSIVES

... productive coughs or coughs with very sticky mucus should be allowed to occur as the body may be relying on the cough to prevent the airway from being obstructed by mucus. -Antitussives are often used with tracheitis, tracheobronchitis. When coughing worsens the inflammation that is already present ...
(B) rosiglitazone
(B) rosiglitazone

... d, Double immunohistochemistry and in situ hybridization detecting b-endorphin protein and Ucp2 mRNA, respectively, in coronal sections from wild-type mice. Arrows indicate the presence of b-endorphin neurons co-localized with Ucp2 mRNA. 3V, third ventricle. ...
sense organs
sense organs

... but the first stage in sensory transduction is the generation of a graded receptor potential. • The magnitude of the stimulus is related to that of the receptor potential which in turn is related to either a) the sequence or frequency of all-or-none action potentials generated in the afferent nerve ...
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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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