21/04/2013 Lymphatic System & Immunity Manuel Desco Dept. Bioingeniería Principles of Human Anatomy and Physiology‚ 11e Anatomy and Physiology I 1 INTRODUCTION The ability to ward off the pathogens that produce disease is called resistance – Lack of resistance is called susceptibility Resistance to disease can be grouped into two broad areas – Nonspecific resistance: general defensive mechanisms effective on a wide range of pathogens – Immunity: activation of specific
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Diseases in the Bone: |Diseases: |Cause |Symptoms |Treatment | |Osteoporosis |Loss of bone mass‚ ageing‚ bone density decrease‚ |Fracture (often first sign)‚ |Lifestyle changes – increase | | |weakened bones‚ menopause (drop in oestrogen)‚ bone |symptoms are not very |calcium intake‚ vitamin D | |
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Merit task- lymphatic system A detailed explanation as to how the lymphatic system protects the body showing use of at least 4 different types of information. It protects the body by the lymph nodes. They are hundreds of small lymph nodes clustered along the lymphatic vessels. They are bean shaped and less than 2.5cm long. Each is surrounded by a fibrous capsule. Strands of connective tissue from the capsule extend inwards and divide the node into compartments. Many reticulate fibres support
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The equine endocrine system is a group of organs that release hormones in the horses body to regulate things like growth‚ metabolism‚ and reproduction. Hormones production is directed by brain signals caused by outside stimuli and it maintained through negative and positive feedback loops. One of the main organs in the endocrine system is the pituitary gland located on the floor of the skull. The hormones produced by the pituitary have a variety of functions from metabolism to reproduction. The most
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The lymphatic system is an amazing system of the body which is responsible for cleaning up the messes made by other systems of the body. In doing so‚ the lymphatic system does several jobs in the body. According to the Cancer Research UK‚ the lymphatic system is in charge of draining lymphatic fluid back into the bloodstream from the tissues‚ filters lymph‚ filters the blood‚ and fights infections. Unfortunately‚ as the lymphatic system goes about its regular duties‚ cancer can appear in the lymph
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The Circulatory System The Circulatory System consists of the heart‚ blood and blood vessels. It performs many vital functions. It plays an important role in respiration. The circulatory system is also important in nutrition‚ in the removal of wastes and poisons‚ and in several other body processes. The functions are; Transport gases‚ like oxygen from the lungs to cells around the body and carbon dioxide from the cells to the lungs. Transport nutrients like glucose. Transport wastes from cells
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Complement System The complement system is a nonspecific defense mechanism activated in response to invading organisms. This system gets its name from the fact that it complements the action of antibodies. It is the primary mechanism activated by antibodies to kill foreign cells by forming membrane attack complexes. In addition to directly lysing the invading organisms it also reinforces the general inflammatory tactics. It can be activated in two ways: 1. A nonspecific innate immune response
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most important systems in the body is the lymphatic system. One of many functions in the lymphatic system is to cleanse leaked plasma of bacteria and other foreign substances and return it to the blood stream. This also acts as a surveillance system for immune system cells. Another function of the lymphatic system is to stop or slow pathogen entry‚ prevent disease-causing microorganisms from spreading and to strengthen the response of the immune system. Also‚ the lymphatic system protects against
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pressure and osmotic pressure. The lymphatic system picks up fluid that leaks out of the capillaries and returns it to the circulation. Lymphatic capillaries start in capillary beds Lymphatic capillaries snake their way through capillary beds to pick up the excess fluid and return it back to the venous circulation. As fluid pressure increases‚ it forces open little flaps in the lymphatic capillaries‚ and the excess fluid enters the lymphatic system. Lymphatic Vessels Lymphatic capillaries
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The Human Body Systems By Yash Dhayal‚ Mathew Nemet‚ and Tom Battaglini Table Of Contents Overview * Skeletal system - Functions and Parts * Muscular System - Types of Muscles * Integumentary System - Functions * Circulatory System - Parts of the Circulatory System * Immune System - Organs and Cells of he Immune System * Respiratory System - Parts of the Respiratory System * Digestive System * Urinary System * Endocrine System * Nervous System Overview *
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