couple of centuries our knowledge of the nervous system has increased rapidly. As there were developments in the technology and techniques that are used to study the nervous system. Previous to the discovery of the neuron there were many rival theories about the arrangement of the nervous system. The two leading scientific groups leading the research labelled themselves as ‘The Reticularists’ and ‘The Neuronists’. The Reticularists theory was that ‘the nervous system consisted of a large network of tissue
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Practice Exam #4 – Chapters 12‚ 13‚ 14 & 15 1) What would normally be found within the central canal of the spinal cord? a) Blood b) Myelin c) Cerebrospinal fluid d) Air e) Gray matter 2) The filum terminale is a) The roots of spinal nerves hanging inferiorly from the end of the spinal cord in the vertebral column b) An indentation on the dorsal side of the spinal cored c) The tapered end of the spinal cord d) An extension of the pia mater that anchors the spinal cord to the coccyx
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their major underlying assumptions‚ behaviorism‚ psychoanalytic/psychodynamic‚ humanistic‚ and cognitive. In addition‚ it will show how the primary biological foundations of psychology are linked to behavior such as‚ brain‚ central nervous system‚ peripheral nervous System‚ and genetics/evolution. Behavioral Theory Behavioral psychology‚ also known as behaviorism‚ is a learning theory established on the notion that behaviors are gathered by conditioning. Conditioning develops from influenced of the
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information to a ‘’control centre’’ to regulate the response. The control centre which is in the brain decides a response to the stimuli. Then‚ the control centre sends signals to an effector such as muscles and organs. Negative feedback is a control system that occurs when an important variable such as pH of blood deviates from the certain limits which can cause reactions that will turn variable into a normal range. For e.g.
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1. What is a neuron? o The individual nerve cell‚ comprised of the axon‚ dendrites‚ and cell body. 2. How many neurons in the nervous system? o 86 billion 3. Function of cell body‚ dendrites‚ and axons. o Cell body: Contains the nucleus and other major components. o Dendrites: Branch out from the cell body and receive messages from other neurons. o Axons: Carries messages away from the cell body to the dendrites. 4. Define polarization/depolarization. o Polarization: Resting state of neuron
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Astrocytes are glial cells and have earned their name because of their star shaped figure. They make up a large population of cells in the brain and have a multitude of functions in the Central nervous system. The roles of the various types astrocytes include preserving‚ supporting‚ and mending nervous tissue. There are known to be three main kinds of astrocytes which are Protoplasmic‚ Fibrous‚ and Radial. Protoplasmic astrocytes happen in gray matter. They have a lesser amount of fibrils
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NAME ________________________________________ HUMAN PHYSIOLOGY BMS 108 First Midterm – Summer 2013 DR. BARRY D. TANOWITZ 1. Put your name at the top and on your Scantron. 2. Answers for questions 1-‐ 50 will be placed on a Scantron (Green strip‚ 100 questions) – all questions 1 point each.
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Spinal cord injuries If the spinal cord is damaged in an accident‚ the sections below the injury will be cut off from the circuit of information to and from your brain. This means‚ all nerves - and all body parts - linked to these areas of the spinal cord will also be disconnected from your brain and will stop functioning. Well protected To minimise the risk of such an injury‚ your spinal cord is well protected: Three tough envelopes called meninges surround your spinal cord A clear fluid‚ that
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times required. The system within the body which assists to control and coordinate the functioning of all the systems is called the nervous system. The nervous system works alongside the endocrine system allowing communication and coordination between the many organs and systems within the human body. This allows them to function correctly‚ and have the ability to respond to stimuli when needed. The nervous system has two main systems within itself. These are the central nervous system known as CNS‚ and
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tissue is found in ligaments‚ tendons‚ cartilage‚ and bone. Nervous tissue forms the nervous system‚ which is responsible for coordinating the activities and movements of your body through its network of nerves. Parts of the nervous system include the brain‚ spinal cord‚ and nerves that branch off of those two key parts. Nervous tissue consists of two kinds of nerve cells: Neurons are the basic structural unit of the nervous system. Each cell consists of the cell body‚ dendrites‚ and axon. Neuroglia
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