1. Explain both the anatomical and functional divisions of the nervous system. Include the subdivisions of each. The nervous system’s function is to monitor stimuli occurring inside and outside the body‚ process and interpret this sensory input‚ and respond by activating effector organs. It consists of the Central Nervous System (brain and spinal cord)‚ and the Peripheral Nervous System (neurons that carry messages to and from the CNS). 2. Describe the composition and function of the cell
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1.) Name and describe the function of each part of a neuron. What is a neuron? The neurons are the basic elements of our nervous system. You can call them specialized cells in which includes the units of info-development in our brain‚ are very responsible for the perception and the transportation of information. Each part of the neuron has a very important role providing information in the whole body. The most important parts of a neuron are: a cell body‚ dendrites‚ and an axon. • Cell Body‚ also
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complex organism. It is composed of many different organs systems‚ which are vital for the body to function properly. They work with one another in order to carry out daily life activities and maintain the body’s proper functions. Among these organ systems lies one of the most important‚ the nervous system. The nervous system functions as the control center of the body‚ and it is in charge of the activities of the rest of the organs systems and the body’s components (Marieb‚ E.N. & Hoehn‚ K.). It
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Biology exam Endocrine system: Hormones: chemical messengers that coordinate the body’s activates. Substances secreted by cells that act to regulate the activity of other cells in the body. They are part of the endocrine system and they are slow acting but have a longer affect than neurotransmitters. Functions: * regulate growth‚ development‚ behavior‚ and reproduction. * Maintain homeostasis * Regulate metabolism and water and mineral balance * Respond to external stimuli
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Lymphatic system Lymphatic capillaries-Absorb excess tissue fluid and return it to the blood stream Lacteals (in small intestine) –absorb fats vin the form lipoproteins and transport them to the bloodstream Lymphoid organs lymphatic vessels are sites of production and distribution of lymphocytes‚ which help defend the body against pathogens Lymphatic vessels One- way system-The movement of fluid is dependent upon skeletal muscle contraction; when the muscles contract‚ fluid is squeezed past
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Cranial Nerves The brain and spinal cord (CNS) are connected to parts of the body by nerves and cell bodies called the peripheral nervous system. The PNS contains all of the nervous tissue outside the brain and spinal cord. Afferent (sensory) nerve fibers-conduct nerve impulses toward the CNS Efferent (motor) nerve fibers-conduct nerve pulses away Sensory Somatic System – Carries nerve impulses from the senses to the CNS and also carries the impulses to the skeletal muscles and glands
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Drugs and the nervous system Neurotransmitters within the body include excitatory and inhibitory‚ noradrenalin‚ dopamine‚ serotonin; acetylcholine and glutamate are examples of excitatory neurotransmitters. GABA and glycine are examples of inhibitory neurotransmitters. General anaesthetics General anaesthetics act mainly on the central nervous system to stop information processing; these may be given by inhalation or intravenously. Nitrous oxide or laughing gas is used in maintain anaesthesia
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Structures of the Nervous System This activity will increase your understanding of the different structures of the nervous system and brain. During the Web activity‚ you will view a variety of structures of the brain and nervous system and label each with the appropriate term. You will use this document to write a description for the terms you used in the activity. As you conduct the Structures of the Nervous System activity‚ follow along with this Word document and fill in the descriptions of
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PSY1011/1111 Essay cover sheet Essay Title: How Do Nerve Cells Work and Why is it Important for Psychologists to know this? Student number: M00267898 Word count (Excluding title and references section):1‚062 Declaration By submitting this work I acknowledge that I am its author‚ that all sources consulted in its preparation are referenced appropriately in accordance with the referencing guide‚ and that I have not copied from any source. How Do Nerve Cells Work and Why is it Important
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REGENERATION OF NERVOUS TISSUE OF THE CENTRAL NERVOUS STYSTEM The Status of Research On The Repair Of Nervous Tissue Of The Central Nervous System Lekisha Johnson Virginia College At Austin THE STATUS OF RESEARCH ON THE REPAIR AND REGENERATION OF NERVOUS TISSUE OF THE CENTRAL NERVOUS Today‚ most treatments for damage brain or spinal cord aim to relieve symptoms and limit further damage. But recent research into regeneration mechanism of the central nervous system‚ The discovery
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