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nerve slide show
nerve slide show

... • As a result, the brains of people with Parkinson's disease contain almost no dopamine • To help relieve their symptoms, we give these people L-DOPA, a drug that can be converted in the brain to dopamine. ...
Neurons
Neurons

... • Has two main parts: the central nervous system and the peripheral nervous system. • BOTH are composed of neurons, or nerve cells, that transmit messages to different parts of the body. • Neurons have three main parts: cell body (produces energy), dendrites (DELIVERS info to the cell body), and axo ...
PowerPoint to accompany Hole’s Human Anatomy and
PowerPoint to accompany Hole’s Human Anatomy and

... 1) Schwann Cells • Produce myelin found on peripheral myelinated neurons ...
Cell loss in the motor and cingu- late cortex correlates with sympto
Cell loss in the motor and cingu- late cortex correlates with sympto

... The symptoms of Huntington’s disease (HD) vary markedly between individuals. Some patients show pronounced motor symptoms but only mild behavioural and/or cognitive disturbances. Others present severe mood problems and cognitive impairments but minimal movement abnormalities, while others are affect ...
glossary of terms
glossary of terms

... Kinesphere  (reach  space):     “the  sphere  around  the  body  whose  periphery  can  be  reached  by  easily  extended   limbs  without  stepping  away  from  that  place  which  is  the  point  of  support  when   standing  on  on ...
Chapter 7 -Nervous System - Austin Community College
Chapter 7 -Nervous System - Austin Community College

... a. functions: consciousness, thinking, planning, conscience, memory, control of complex movements, awareness, localization of sensory input, language b. structure left and right hemispheres ...
Biology 218 – Human Anatomy - RIDDELL
Biology 218 – Human Anatomy - RIDDELL

... b. the pattern of dendritic branching is quite variable and distinctive for neurons in different regions of the nervous system c. a few small neurons lack an axon and many others have very short axons; long neurons have axons that may exceed 1 meter in length 5. Classification of Neurons: i. Neurons ...
Nervous System Notes File
Nervous System Notes File

... Unipolar: cell body has 1 axon (lead to PNS and CNS, can form ganglia) Multipolar: cell body has 1 axon & many dendrites (found in brain and spinal cord) ...
Chapter_03_4E
Chapter_03_4E

... • Muscle spindles trigger reflexive muscle action when the muscle spindle is stretched • Golgi tendon organs trigger a reflex that inhibits contraction if the tendon fibers are stretched from high muscle tension • The primary motor cortex, located in the frontal lobe, is the center of conscious moto ...
Competitive Learning Lecture 10
Competitive Learning Lecture 10

... The key feature in SOMs is that the mapping is topology-preserving, in that neighboring neurons respond to “similar” input patterns" SOMs are typically organized as one- or two- dimensional lattices (i.e., a string or a mesh) for the purpose of visualization and dimensionality reduction" ...
NERVOUS TISSUE
NERVOUS TISSUE

... Kharkov National Medical University ...
Chapter 14 Autonomic nervous system
Chapter 14 Autonomic nervous system

... centers within the central nervous system. ...
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No Slide Title

... leaving the globus pallidus (see Fig. 19-15). A, anterior nucleus (of the thalamus); Am, amygdala; CCb, body of the corpus callosum; D, dorsomedial nucleus; HC, hippocampus; Ia and Ip, internal capsule-anterior limb and posterior limb; Ins, insula; LVa and LVb, anterior horn and body of the lateral ...
9 Chapter Nervous System Notes (p
9 Chapter Nervous System Notes (p

... 8. What do dendrites look like and what do they do? 9. What do axons look like and what do they do? ...
Psych 9A. Lec. 05 PP Slides: Brain and Nervous System
Psych 9A. Lec. 05 PP Slides: Brain and Nervous System

... Afferent (towards the central nervous system: CNS) Efferent (away from or out of the CNS) Many simple reflexes rely on circuits within the spine: no need for brain involvement. ...
No Slide Title - Brain Injury Alliance of Oregon
No Slide Title - Brain Injury Alliance of Oregon

... Germany, Switzerland, and Austria ...
CHAPTER 3 – THE BIOLOGICAL BASIS OF BEHAVIOUR
CHAPTER 3 – THE BIOLOGICAL BASIS OF BEHAVIOUR

... by an electroencephalograph (EEG). Epilepsy is caused by excessive discharges of stimuli by neurons. The cerebral cortex is the outer layer of the brain. The cerebral cortex processes complex mental data and is called the “grey matter” of the brain. The cortex surrounds the cerebrum, with comprises ...
the summary and précis of the conference
the summary and précis of the conference

... Despite the sparseness of the cortical connection matrix, the potential bandwidth of all of the neurons in the human cortex is around a Terabit/sec (assuming a maximum rate of 100 bit/sec over each axon in the white matter), comparable to the total world backbone capacity of the Internet in 2002. H ...
The Nervous System
The Nervous System

... grown by your sixth birthday. It makes up only about two percent of total body weight, but use more than 20 percent of the oxygen you inhale. Without oxygen the brain can only last four to five minutes before suffering serious and irreversible damage. The brain has three main divisions: the cerebrum ...
sensory, motor, and integrative systems
sensory, motor, and integrative systems

... The nature of the sensation and the type of reaction generated by the CNS vary with the level of the CNS at which the stimulus is translated: a. spinal reflexes b. visceral reflexes (brainstem) c. crude identification (thalamus) d. precise identification (cerebral cortex) ...
Types of neurons
Types of neurons

... Interneurons Interneurons carry information between other neurons only found in the brain and spinal cord. ...
Darwin VII after - Ohio University
Darwin VII after - Ohio University

... With kind permission from the authors: J.L. Krichmar & G.M. Edelman, (2002) Machine Psychology: Autonomous Behavior, Perceptual Categorization and Conditioning in a BrainBased Device, Cerebral Cortex 12:818-830. The Neurosciences Institute, www.nsi.edu To accompany Baars & Gage Chapter 3 ...
Types of neurons
Types of neurons

... Interneurons Interneurons carry information between other neurons only found in the brain and spinal cord. ...
Motor Cortex
Motor Cortex

... Located in the precentral gyrus of each cerebral hemisphere. Contains large neurons (pyramidal cells) which project to SC neurons which eventually synapse on skeletal muscles ...
The outer layer of the cerebral cortex is divided into different areas
The outer layer of the cerebral cortex is divided into different areas

... illustrates that, despite their differences, the sensory regions of the cortex must be cooperating with each other by integrating the sensory stimuli they receive from the outside world. Now, on page 1206 of this issue (1), Macaluso et al. report an elegant example of this cooperation and provide em ...
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Premovement neuronal activity

Premovement neuronal activity in neurophysiological literature refers to neuronal modulations that alter the rate at which neurons fire before a subject produces movement. Through experimentation with multiple animals, predominantly monkeys, it has been shown that several regions of the brain are particularly active and involved in initiation and preparation of movement. Two specific membrane potentials, the bereitschaftspotential, or the BP, and contingent negative variation, or the CNV, play a pivotal role in premovement neuronal activity. Both have been shown to be directly involved in planning and initiating movement. Multiple factors are involved with premovement neuronal activity including motor preparation, inhibition of motor response, programming of the target of movement, closed-looped and open-looped tasks, instructed delay periods, short-lead and long-lead changes, and mirror motor neurons.
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