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The Nervous System: Overview The nervous system Divisions of the
The Nervous System: Overview The nervous system Divisions of the

... Two different types of cells make up nerve tissue: ...
NERVES
NERVES

... and open or close when a specific channel when a specific chemical binds to the channel › Voltage-gated ion channels- are found in axons and open or close when the membrane potential changes ...
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Document

... An adult human brain contains ~ 1011 neurons, and each of these might receive 103 synapses apiece, for a total of 1014 synapses. ...
Autonomic Nervous System ANS - Anderson School District One
Autonomic Nervous System ANS - Anderson School District One

... • digits become ischemic after exposure to cold or w/ emotional stress • due to excessive sympathetic stimulation of smooth muscle in arterioles in digits & increased response to stimuli that cause ...
Document
Document

... membranes, triggering an action potential. This is an excitatory postsynaptic potential (EPSP). *others hyperpolarize the membranes, inhibiting action potentials This is an inhibitory postsynaptic potential (IPSP). *EPSPs and IPSPs are summed in a trigger zone (initial segment of the axon) of the ne ...
The Nervous System
The Nervous System

... 2. Mark out the one word that does not belong with the group. 3. Write one or two sentences to explain how the other three words are ...
One difference between axons and dendrites is that
One difference between axons and dendrites is that

... A. In both the dendrites and the axon B. Only in the axon C. Only in the dendrites D. Only in the nucleus Myelin is a A. fatty substance that wraps around some axons. B. hormone secreted by the pituitary gland. C. protein component of the tangles seen in Alzheimer's disease. D. small molecule neurot ...
File - Hardman`s AP Biology
File - Hardman`s AP Biology

... – Contains cranial nerves and spinal nerves • Gather info from sensors and conduct decisions to effectors • Controls the skeletal muscles – Conscious of its activity ...
Human nervous system_Final
Human nervous system_Final

... The nervous system The nervous system is an organ system containing a network of specialized cells called neurons that coordinate the actions of human and transmit signals between different parts of its body. The human nervous system has two main divisions as seen in the concept map, they are the ce ...
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SSRI`S - Psych205
SSRI`S - Psych205

... • Selective serotonin reuptake inhibitors (SSRIs) are a class of antidepressants prescribed for depression and anxiety disorders. They work by increasing the amount of the neurotransmitter serotonin. First developed in the 1970s, allegedly with fewer side effects than their predecessors, they contin ...
Supporting Cells - Net Start Class
Supporting Cells - Net Start Class

...  Some of the sodium channels open and Na+ rushes into the cell causing the cytoplasm to become less negative.  This is known as depolarization.  If enough depolarization occurs then the cell will reach a threshold potential and additional Na+ will open.  If the threshold potential is reached the ...
Nervous and Endocrine Systems
Nervous and Endocrine Systems

...  A disorder in which nerve cell activity in the brain is disturbed, causing seizures  Can be caused by genetics or a brain ...
Nervous System ppt
Nervous System ppt

... connected neurons, and some signals are transmitted through a really long neuron (long axon) Which animal would you think would need really long axons to transmit signals throughout the body? Fun Fact: Length of giraffe primary axon (head to toe) = 15 feet ...
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Bridget Lecture 2 Notes The Neurons o Functional classes (CNS

... enzymes)  ▪ Microtubules (axoplasmic transport)  ▪ Mitochondria (energy and ATP symbiosis)  ▪ Cytoskeleton (assembly of microtubules and other  proteins that together produce the shape of the  neuron)  ▪ Unipolar  ● Spinal Chord  ● Brain to muscle or gland   ● Dendrite and axon   ▪  Bipolar (2.2)  ● ...
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Nerve activates contraction

... Structural Classification of Neurons  Unipolar neurons – have a short single process leaving the cell body  The single process is short and divides almost immediately into central and peripheral fibers.  In this case, the axon conducts nerve impulses both toward and away from the cell body. ...
Neuroscience and Behavior Term Explanation
Neuroscience and Behavior Term Explanation

... The endocrine system is another type of communication system that uses a set of glands which produce hormones (like neurotransmitters) that circulate through the bloodstream, enabling communication. Hypothalamus- part of the brain that links the brain to the endocrine system through control of the p ...
3-Biological Bases-table - Miami Beach Senior High School
3-Biological Bases-table - Miami Beach Senior High School

... The endocrine system is another type of communication system that uses a set of glands which produce hormones (like neurotransmitters) that circulate through the bloodstream, enabling communication. Hypothalamus- part of the brain that links the brain to the endocrine system through control of the p ...
Unit III Modules 9 to 13 Test Review
Unit III Modules 9 to 13 Test Review

... the victim usually recovers without ill effects. ...
Neuron (Nerve Cell)
Neuron (Nerve Cell)

... ground is too soft). We will line up students along the driveway & sidewalk behind the CTE building. • Students will line up tallest to shortest. You MUST be dressed appropriately in order to be released for the photo! ...
Nervous system - Lancaster High School
Nervous system - Lancaster High School

... Neural control of body movements Other brain functions Valium (diazepam) sedative Increases GABA to bind receptor sites Increases GABA’s effectiveness ...
Unit 3 PowerPoint Biological basis of behavior-
Unit 3 PowerPoint Biological basis of behavior-

... neurons Outnumber typical neurons about 10 to 1 Oligondenroglia – CNS cells that produce myelin Schwann Cells – same function as above except in PNS (Bonus – can help axons regenerate!) Astrocytes – star-shaped, form the matrix in which neural cells are embedded and absorb dead ones. ...
Nervous System - Downey Unified School District
Nervous System - Downey Unified School District

... • THEY TRAVEL DOWN THE AXON TO THE NERVE TERMINAL • OTHER NEUROTRANSMITTERS ARE SYNTHESIZED IN THE CYTOPLASM OF THE NERVE TERMINALS AND ARE STORED IN VESICLES • WHEN AN ACTION POTENTIAL PASSES ALONG THE MEMBRANE OF A SYNAPTIC KNOB IT INCREASES PERMEABILITY ALLOWING CALCIUM IONS IN BY OPENING CHANNEL ...
Psy101 Brain.lst
Psy101 Brain.lst

... Explain the anatomy of a neuron including: dendrite, soma, axon, myelin sheath, axon terminal, terminal buttons/synaptic vesicles and synapse. Give an example of how a message travels through the neuron. ...
Chapter 48 and 49 Name_______________________________
Chapter 48 and 49 Name_______________________________

... Direct synaptic transmission involves binding of neurotransmitters to ligand-gated ion channels in the postsynaptic cell Neurotransmitter binding causes ion channels to open, generating a postsynaptic potential 19. What are the two types of postsynaptic potentials? Describe them briefly. a. Excitato ...
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Neurotransmitter

Neurotransmitters are endogenous chemicals that enable neurotransmission. They transmit signals across a chemical synapse, such as in a neuromuscular junction, from one neuron (nerve cell) to another ""target"" neuron, muscle cell, or gland cell. Neurotransmitters are released from synaptic vesicles in synapses into the synaptic cleft, where they are received by receptors on other synapses. Many neurotransmitters are synthesized from simple and plentiful precursors such as amino acids, which are readily available from the diet and only require a small number of biosynthetic steps to convert them. Neurotransmitters play a major role in shaping everyday life and functions. Their exact numbers are unknown but more than 100 chemical messengers have been identified.
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