SPECIAL SENSES GENERAL PRESENTATION Overview of the Nervous System • Endocrine and nervous systems maintain internal coordination – Endocrine system: communicates by means of chemical messengers (hormones) secreted into to the blood – Nervous system: employs electrical and chemical means to send messages from cell to cell 12-2 Overview of the Nervous System • Nervous system carries out its task in three basic steps • Sense organs receive information about changes in the body and external environment
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toward bilateral symmetry and cephalization * Invertebrate Nervous Organization * In simple animals‚ such as sponges‚ the most common observable response is closure of the osculum (central opening) * Hydras (cnidarians) have a nerve net that is composed of neurons * Planarians‚ (flatworms) have a ladderlike nervous system * In annelids (earthworm)‚ arthropods (crab)‚ and molluscs (squid) the nervous system shows further advances * Cephalization - concentration of
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Neuroscience and Behavior Neural Communication The Endocrine System Neurons The Brain How Neurons Communicate Older Brain Structures How Neurotransmitters Influence Us The Cerebral Cortex The Nervous System Our Divided Brain The Peripheral Nervous System Studying Hemispheric Differences in the Intact Brain The Central Nervous System 3 4 History of Mind Neural Communication Phrenology The body’s information system is built from billions of interconnected cells called neurons
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Describe 2. Predict Human behavior & mental process 3. Explain 4. Help change and improve the lives of people Subfields: Behavioral neuroscience – examines biological basis of behavior and hoe it determines behavior Brain & nervous system Developmental Psychology – examines how people grow & change from the birth to death Clinical psychology – deals with the study‚ diagnosis‚ and treatment of psychological disorders Psychiatrists – physicians who specialize in the treatment
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7 Threshold 8 Synapse 9 neurotransmitter 10 acetylcholine 11 Endorphins A branch of psychology concerned with the links between biology and behavior. A nerve cell; the basic building block of the nervous system. The bushy‚ branching extensions of a neuron that receive messages and conduct impulses toward the cell body. The extension of a neuron‚ ending in branching terminal fibers‚ which messages pass to other neurons or to muscles or glands.
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the “Hold your Wee for a Wii” contest- Cannon’s Postulates are properties of homeostatic control systems in the body. 1. The nervous system has a role in preserving the “fitness” of the internal environment. The nervous system coordinates and integrates blood volume‚ blood osmolality‚ blood pressure‚ and body temperature‚ among other regulate variables. In regards to hyponatremia‚ the nervous system is increasing blood pressure‚ decreasing
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INTRODUCTION TO NEUROLOGY content: Functions of the nervous system Structure of the nervous system Organisation of the nervous system Numerous functions Protection. Movement. Coordination. Control of cardiovascular system. Functioning of endocrine system. Maintenance of homeostasis. Structure Nervous system (NS) is a highly specialised‚ complex‚ interconnected network of neural tissue It coordinates‚ interprets and controls the
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Foundations of Psychology Tiara Clark PSY/300 March 1‚ 2015 Mrs. Cara Patterson Foundations of Psychology The study of psychology is fundamental to understanding mental processes and human behaviors. In the earlier years of psychology‚ there were two schools of thought that dominated: structuralism and functionalism. Structuralism focused on the structure and content of consciousness while functionalism focused on the function of psychological processes
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1.An extensive network of specialized cells that carry information to and from all parts of the body is called the nervous system. 2.The basic cell that makes up the nervous system and which receives and sends messages within that system is called a neuron. 3.The long tube-like structure that carries the neural message to other cells on the neuron is the axon. 4.On a neuron‚ the branch-like structures that receive messages from other neurons are the dendrites. 5. The cell body of the neuron‚ responsible
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parameters were recorded from right arm in step-2. Statistical analysis was done by paired t- test using the window SPSS Statistics 17.0 version.Cold pressor test is an autonomic function test in which cold stimulus causes intense stimulation of sympathetic nervous system 1. Immersion of hand in cold water produced marked increase in heart rate. This increase in heart rate has been attributed to an
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