The lymphatic system The lymphatic system belongs to the circulatory system; it consists of a network of lymphatic vessels which carry around fluid which is known as lymph. These carry the fluid towards the heart in different directions. These vessels are spread out the human body. The vessels are similar to that of the circulatory systems vessels as it consists of smaller lymphatic capillaries that form vessels. Lymph fluid is when the tissue fluid is collected though the lymph capillaries. When
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Lymphatic/Immune System Structures: White Blood Cells‚ thymus‚ spleen‚ lymph nodes‚ lymph vessels Function: Helps protect the body from disease‚ helps collect the fluid lost from blood vessels and returns the fluid to the circulatory system Pathogen- Disease Causing Agent Vector- animal that carries pathogens from person to person Bacteria- domain of unicellular prokaryotes that have cell walls containing peptidoglycan Virus- particle made up of nucleic acid‚ protein‚ and in some cases lipids
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of the human body’s lymphatic system." The lymphatic system is a complex network of vessels‚ ducts and capillaries‚ which run through out the body. There are many components’ in the lymphatic system‚ including; lymph fluid‚ lymphatic vessels‚ the lymphatic duct‚ lymph nodes‚ lacteals and the spleen. The lymphatic system and it’s importance were not recognised until the 1960’s. The lymphatic system has 3 main importance’s and functions. The lymphatic system plays a large part in the immunity
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1. Within the circulatory system the liver has a unique anatomic location in that it effectively filters all blood coming from the intestinal tract by way of the portal vein before it is pumped to the general circulation. The liver often sees drugs at their highest concentrations‚ since it is the first organ perfused by blood containing the drug after absorption from the intestinal tract. Approximately 10-15% of total blood volume can be presented to the liver at any given time. The entire absorbed
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Transport Systems Essay In single celled organisms‚ nutrients‚ water and various substances that are need for basic cellular processes can easily be transported in and out through the cell membrane. This is an effective transport system for microscopic organisms‚ but multicellular organisms require a more complex transport system to sustain itself. Take humans for example; unlike a cell‚ only the outer layer of skin is in contact with the body’s outside environment. It’s not possible for substances
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Paper #1 Integumentary System Disorder Alopecia areata is a disease that affects the integumentary system.1 It is a disease that affects the hair follicles‚ which are part of the skin from which hairs grow. 1 In most cases‚ hair falls out in small‚ round patches about the size of a quarter.2 Many people with the disease get only a few bare patches. Some people may lose more hair.2 Rarely‚ the disease causes total loss of hair on the head or complete loss of hair on the
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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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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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Digestive system disorders Digestive system disorders can cause a lot of discomfort. Symptoms can include gas‚ diarrhea‚ constipation‚ cramps‚ nausea and vomiting. These common symptoms can have very different causes. These kinds of symptoms can make digestive disorders hard to diagnose. Celiac disease Celiac disease occurs when the body’s immune system reacts to a type of protein called gluten. If a person eats food that contains gluten‚ the immune system will gradually damage the lining of
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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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