Chapter 2 Biological Foundations (part 1)

Chapter 2 Biological Foundations (part 1) - The Biological...

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Chapter 2 The Biological Perspective
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Neuroscience deals with the structure and function of neurons, nerves, and nervous tissue and they influence behavior .
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Psychology is a BIOpsychosocial science We are biological organisms before we are psychosocial organisms. Organism Organization
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“A healthy person is a set of organs of interlocking action regulating each other, the whole making a self-regulating system .” Sir Charles Sherrington (1906), Nobel Laureate
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Skin Respiratory Skeletal Digestive Muscles Excretory Endocrine - - - - - - - - - Nervous Reproductive Circulatory The human body is a complex network of highly evolved and interdependent organ systems
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1. Mechanical integration (skeletal, muscular, respiratory, digestive systems – e.g., posture, facial expressions, speech, movement 2. Chemical integration (Circulatory, endocrine, digestive, excretory) 3. Neural Integration The organism makes its way through life as an integrated system of specialized parts .
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The nervous system does what it does with: Receptors – specialized cells of the nervous system with the capacity to respond to stimulation and to translate that stimulation to neural events. Effectors – muscles and glands Connectors – nerve cells that connect receptors and connectors. 3. Neural integration
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Overview of Nervous System Nervous System - an extensive network of specialized cells that carry information to and from all parts of the body. 2 levels of neural integration “SIMPLE” Spinal cord – reflexes COMPLEX Routes to the brain
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Figure 2.1 An Overview of the Nervous Syste m
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Structure of the Neuron Neuron (nerve cell) - the basic cell that makes up the nervous system and which receives and sends messages within that system. 100,000,000,000 Neurons in the CNS (and as many as 1 trillion connections between them!)
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Parts of a Neuron Dendrites - branch-like structures that receive messages from other neurons. Soma
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Chapter 2 Biological Foundations (part 1) - The Biological...

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