NERVOUS SYSTEM The nervous system consists of the brain‚ spinal cord‚ sensory organs‚ and all of the nerves that connect these organs with the rest of the body. Together‚ these organs are responsible for the control of the body and communication among its parts. The brain and spinal cord form the control center known as the central nervous system (CNS)‚ where information is evaluated and decisions made. The sensory nerves and sense organs of the peripheral nervous system (PNS) monitor conditions
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The Systems and Language Skills of English 1. The best teachers are the confident and prepared teachers. To be a successful English teacher you need a good knowledge of the topic. Clearly‚ communication with students is essential in effective teaching. To communicate successfully‚ teachers must know how to structure their own language for maximum clarity and have strategies for understanding what students are saying since understanding student talk is key to analysis of what students know
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The Excretory System from The Human Body Systems Series catalog # 3292 Published & Distributed by… AGC/UNITED LEARNING 1560 Sherman Avenue Suite 100 Evanston‚ IL 60201 1-800-323-9084 24-Hour Fax No. 847-328-6706 Website: http://www.agcunitedlearning.com E-Mail: info@agcunited.com 1 THE EXCRETORY SYSTEM Grade Levels: 6-9 (Review for Grades 10-12) Viewing Time: 17 minutes with video quiz INTRODUCTION This video is designed for use in grades 6 - 9 as an introduction to
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The circulatory‚ digestive and respiratory system are interrelated because although each of these systems have their own individual purposes. The digestive system takes the food that is eaten and breaks it down into smaller molecules that can be absorbed into the bloodstream. Cells can then use the molecules for their maintenance. The respiratory system takes in oxygen from the atmosphere and then passes it into the bloodstream in order for it to be delivered to all the cells in the body. The circulatory
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The endocrine system is a control system of ductless glands that secrete chemical "instant messengers" called hormones that circulate within the body via the bloodstream to affect distant cells within specific organs. Endocrine glands secrete their products immediately into the blood or interstitial fluid‚ without storage of the chemical. Hormones act as "messengers‚" and are carried by the bloodstream to different cells in the body‚ which interpret these messages and act on them. Typical endocrine
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The cardiovascular system‚ also known as the circulatory system‚ is composed of the heart‚ blood vessels‚ and blood. The term cardiovascular refers to the heart (cardio-) and blood vessels (vascular). The term circulatory refers to the circulation of the blood. The heart is a muscular pump and its regular contractions send blood into tough‚ elastic tubes called arteries‚ which branch into smaller vessels and convey oxygen-rich blood through the body. The arteries eventually divide into tiny capillaries
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INTEGUMENTARY SYSTEM The integumentary system consists of the skin and accessory structures‚ such as hair‚ nails‚ sudorifenous gland (sweat gland) and sebaceous gland (oil gland). Integument means covering‚ and the integumentary system is familiar to most people because it covers the outside of the body and is easily observed. FUNCTIONS OF THE INTEGUMENTARY SYSTEM 1. Protection The skin provides protection against abrasion and ultraviolet light. It prevents the entry of microorganisms
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These cells are organised biologically to eventually form the whole body. Contents 1 Size‚ type and proportion 2 Systems 2.1 Cardiovascular system 2.2 Digestive system 2.3 Integumentary system 2.4 Lymphatic system 2.5 Musculoskeletal system 2.5.1 Bones 2.6 Nervous system 2.7 Reproductive system 3 See also 4 References 5 Further reading 6 External links Size‚ type and proportion Constituents
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ENDOCRINE SYSTEM 1) KNOW ALL OF THE ENDOCRINE GLAND & HOROMONES * Hypothalamus Although it is part of the brain‚ the hypothalamus secretes several hormones and is very closely related to the activity of the endocrine system. * The hormones it secretes are: * Releasing hormones – stimulate the secretion of specific anterior pituitary hormones * Release inhibiting hormones – inhibit the secretion of specific anterior pituitary hormones Pituitary * A small
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The respiratory system of the horse is well adapted to athletic exercise‚ with unrestricted upper airway diameters‚ and a large lung capacity afforded by 18 ribs. These combine to enable air intakes of up to 1800 litres per minute in a galloping horse. Volumes of up to 300 litres of blood are pumped at high pressure through small lung capillaries surrounding 10 million air sacs to take up and deliver over 70 litres of oxygen per minute to the working muscles at the gallop. As a result‚ any restriction
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