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Cells of the Nervous System
Cells of the Nervous System

... Neurons: Its many shapes & sizes ...
Biology 30 NERVOUS SYSTEM - Salisbury Composite High School
Biology 30 NERVOUS SYSTEM - Salisbury Composite High School

... 2. inhibitory neurotransmitters –block Na+ channels and open K+ channels ions which causes hyper-polarization ...
The Nervous System - FW Johnson Collegiate
The Nervous System - FW Johnson Collegiate

... intensity, variation with respect to frequency does occur - a glass rod at 40˚C may cause a single neuron to reach threshold level while the same glass rod at 50˚C will cause 2 or more to fire. The greater the number of impulses, the greater the intensity of the response The Sequence of Events that ...
Chapter 6 Body and Behavior
Chapter 6 Body and Behavior

... • The nervous system is never at rest. There is always a job for it to do. Even when you are sleeping the nervous system is busy regulating your body functions. The nervous system controls your emotions, movements, thinking and behavior. ...
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...  It is an attempt to explain the structure ...
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The left hemisphere

... the information away from the cell in the form of bioelectric signals also known as nerve impulses. ...
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Brain

... Positron Emission TomographyFunctional Brain Activity ...
Synapses and Synaptic Transmission
Synapses and Synaptic Transmission

... INTRODUCTION TO SYNAPSE: The CNS contains more than 100 billion neurons. Incoming signals enter the neuron through synapses located mostly on the neuronal dendrites, but also on the cell body. For different types of neurons, there may be only a few hundred or as many as 200,000 such synaptic connec ...
The Great Brain Drain Review
The Great Brain Drain Review

... Schizophrenia and Parkinson’s disease are both caused by an imbalance of the chemical, dopamine in the brain. When we experience extreme pain, the body releases endorphins. acetylcholine is the chemical found at neuromuscular junctions. The poison of a black widow spider affects it by mimicking it. ...
The Brain - Wando High School
The Brain - Wando High School

... at the rear of the frontal lobes  Controls voluntary movement  Different parts of the cortex control different parts of the body.  The motor cortex in the left hemisphere controls the right side of the body and ...
PPT - Wolfweb Websites
PPT - Wolfweb Websites

... – Driven by ions passing through ion channels – Electrical signal driven along very long axons to target cells – Guest lecturer: Dr Jim Kenyon, UNSOM – Axon computer lab ...
LO: Explain how biological factors may affect one cognitive process.
LO: Explain how biological factors may affect one cognitive process.

... brain-scan based computer program that quickly and accurately measures metabolic activity in the hippocampus. Using PET scans and this program, they have found a reduction in brain metabolism in the hippocampus in the early stages of Alzheimer’s. ...
MCB105 QUIZ 5 2016 wA
MCB105 QUIZ 5 2016 wA

... - their recordings showed that visual receptive fields of ICX neurons were restricted and quite similar in size to the ones observed in the OT. b) How did they open the 'gate' that prevented these findings in previous investigations? Explain the methods in detail. [2] they pharmacologically block ga ...
Essential Questions and Vocabulary
Essential Questions and Vocabulary

... cerebral cortex, glial cells, frontal lobes, parietal lobes, occipital lobes, temporal lobes, moror cortex, sensory cortex, association areas, aphasia, Broca’s area, Wernicke’s area, plasticity, corpus callosum, split brain ...
Ch 3 Review
Ch 3 Review

...  Millions of neurons must send messages at the same time to produce a single thought. ...
chapter 15 sensory, motor, and integrative systems
chapter 15 sensory, motor, and integrative systems

... c. Loss of ability to feel a toothache after 1 - 2 hours d. Hitting the “snooze” button when the alarm clock rings 4. Muscle spindles and tendon organs are examples of a. thermoreceptors b. nociceptors c. proprioceptors d. exteroceptors 5. Circadian rhythm refers to a. characteristic music from the ...
8 The Most Complex Object in the Known Universe
8 The Most Complex Object in the Known Universe

... power 85 billion configurations, a straightforward calculation if we model the brain as having 85 billion neurons, each of which capable of being in either one of two possible states (i.e., active or idle). The time it takes for two neurons to communicate (in other words for data transfer between ne ...
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... presynaptic cell is released into synaptic cleft as a result of depolarization (action potential). Neurotransmitter diffuses across cleft, binds to receptors, and causes a postsynaptic effect Neurotransmitter is taken back into the presynaptic cell (“reuptake”) so that its effect has a time limit. – ...
The Brain
The Brain

... Notice that it is above the brainstem and spinal cord. Those structures close to the spinal cord function in reflexes (close to nerves) and RELAYING or CONNECTING peripheral nerves to the brain. Since the midbrain is close to this area, it receives information and... Midbrain: ...
Answer Key - Psychological Associates of South Florida
Answer Key - Psychological Associates of South Florida

... B) set of principles that organizes observations and explains newly discovered facts. C) unprovable assumption about the unobservable processes that underlie psychological functioning. D) observable relationship between specific independent and dependent variables. ...
Biology and Behavior
Biology and Behavior

... activated not only when a person actually experiences something, but also when he/she watches someone else do or feel the same thing. Some fMRI studies have found malfunctioning mirror mechanisms in people diagnosed with autism, a disorder that includes problems with language development, imitative ...
Chapter 7
Chapter 7

... – Motor division • Efferent fibers transmit impulses from CNS to effector organs ...
chapt12-nervous system
chapt12-nervous system

... On the cellular level, long-term potentiation seems to be required for long-term memory. Unfortunately, long-term potentiation can go awry when neurons become overexcited and die. Drugs are being developed in the hope they will prevent disorders like Alzheimer disease. Language and Speech Language a ...
Brainfunction - Oakton Community College
Brainfunction - Oakton Community College

... become smarter due to the growth of new extensive neural networks. Neuroplasticity or the ability to establish new neural networks occurs throughout life but does require more time and effort during adulthood. ...
Lewy Body Diseases
Lewy Body Diseases

...  synaptic protein, found at presynaptic terminal  sits in cytosol, transiently binds to cell memb and other synaptic proteins  role in synaptic transport, synaptic change, learning  aggregation may cause neuronal dysfunction  potential disease marker lewy body distribution  can occur in - subs ...
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Activity-dependent plasticity

A defining feature of the brain is its capacity to undergo changes based on activity-dependent functions, also called activity-dependent plasticity. Its ability to remodel itself forms the basis of the brain’s capacity to retain memories, improve motor function, and enhance comprehension and speech amongst other things. It is this trait to retain and form memories that is functionally linked to plasticity and therefore many of the functions individuals perform on a daily basis. This plasticity is the result of changed gene expression that occurs because of organized cellular mechanisms.The brain’s ability to adapt toward active functions has allowed humans to specialize in specific processes based on relative use and activity. For example, a right-handed person may perform any movement poorly with his/her left hand but continuous practice with the less dominant hand can make both hands just as able. Another example is if someone was born with a neurological disorder such as autism or had a stroke that resulted in a disorder, then they are capable of retrieving much of their lost function by practicing and “rewiring” the brain in order to incorporate these lost manners. Thanks to the pioneers within this field, many of these advances have become available to most people and many more will continue to arrive as new features of plasticity are discovered.
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