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Neurons

Module 4 part 3

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Spinal cord
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Doreen Pang Mrs. Trainor AP Psychology 10 October 2016 Module 4-3: How Neurons Communicate: The Neural Chain Specialized cells in the sensory systems of the body Can turn some energy --> action potentials Neural impulses Our brain only uses neural energy to communicate specialised cells that translate outer energy into neural impulse Receptor cells in the eye turn light into a neural impulse the brain understands. Sensory (Afferent) Nerve Carry info. from the sensory receptors to: spinal cord brain A network of cells that take thermal energy and translate into neural impulse Connect the sense organs to the brain and spinal cord. Interneurons Nerve cells in the brain and spinal cord responsible for processing information. Related to sensory input and motor output.

Module 4 part 1

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Axon
Myelin
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Action potential

Doreen Pang Mrs. Trainor AP Psychology 5 October 2016 Module 4-1: Neural and Hormonal Systems Neural Communication Body?s info sys. is built from billions of neurons Systems are composed of smaller subsystems Biophysical systems Smaller system in med sys. in large sys. Biological psychologists Branch of psychology concerned with the links btwn biology and behvaior. gaining better understanding of: Sleep and dreams depression and schizophrenia hunger and sex stress and disease Neurons Neurons building blocks of the nervous system Dendrite fibers on a neuron that receive info and conduct it toward the cell body Axon fibers that pass the message along to other neurons Dendrites speaks, Axons listen Motor neurons controls muscles neural system?s giant redwoods Myelin Sheath

Myers Psychology Chapter 2 Vocabulary (6th Edition)

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Myers Psychology Ch2 Vocab Vocabulary
Biological Psychology – Focuses on links between biology and behavior. Neuron – A nerve cell Dendrite – Branching extension, receives messages Axon – Extension of a neuron, sends messages Myelin Sheath – Helps protect and insulate Action potential – A neural impulse, electrical charge that travels down the axon. Threshold – the level of stimulation required to trigger a neural impulse. Synapse – The junction between the axon tip (send) and the dendrite (receive) Neurotransmitters – Chemical messengers that traverse the synaptic gaps between neurons. Acetylcholine – Triggers muscle contractions Endorphins – “Natural morphine”, Pain control and pleasure. Nervous system – Electrochemical communication system of the body

Neurotransmitters and The Parts of a Neuron

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Important Neurotransmitters: 1. Acetylcholine 2. Dopamine 3. Serotonin 4. Endorphins Parts of a Neuron: 1. Dendrites 2. Soma (cell body) 3. Axon 4. Myelin Sheath 5. Axon terminals 6. Synapse
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