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CIRCULATORY SYSTEM - Coggle Diagram
CIRCULATORY SYSTEM
LYMPH SYSTEM
major function
They include protecting your body from illness-causing invaders, maintaining body fluid levels, absorbing digestive tract fats and removing cellular waste. Blockages, diseases or infections can affect your lymphatic system's function.
name of organs
Primary lymphoid organs: These organs include the bone marrow and the thymus. They create special immune system cells called lymphocytes.
Secondary lymphoid organs: These organs include the lymph nodes, the spleen, the tonsils and certain tissue in various mucous membrane layers in the body (for instance in the bowel). It is in these organs where the cells of the immune system do their actual job of fighting off germs and foreign substances.
role of organs
bone marrow: These cells move to other organs and tissues through the blood. At birth, many bones contain red bone marrow, which actively creates immune system cells.
thymus: This gland-like organ reaches full maturity only in children, and is then slowly transformed to fatty tissue.
Lymph nodes: Various immune system cells trap germs in the lymph nodes and activate the creation of special antibodies in the blood.
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Tonsils: The tonsils are also part of the immune system. Because of their location at the throat and palate, they can stop germs entering the body through the mouth or the nose.
Mucous membranes: More than half of all the body's cells that produce antibodies are found in the bowel wall, especially in the last part of the small bowel and in the appendix.
Diseases
Lymphangitis: is an inflammation of the lymph vessels. Symptoms usually include swelling, redness, warmth, pain or red streaking around the affected area.
Lymphedema: is the chronic pooling of lymph fluid in the tissue. It usually starts in the feet or lower legs. It's also a side-effect of some surgical procedures.
Lymphocytosis: is a high lymphocyte count. It can be caused by an infection, blood cancer, lymphoma, or autoimmune disorders that are accompanied by chronic swelling.
IMMUNE SYSTEM
major function
The major function of the immune system is to protect the host from environmental agents such as microbes or chemicals, thereby preserving the integrity of the body.
name of organs
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role of organs
skin and mucous membranes: Your skin and mucous membranes are the first line of defense against germs entering from outside the body.
Diseases
An overactive immune system: If you are born with certain genes, your immune system may react to substances in the environment that are normally harmless.
Autoimmune disease: In autoimmune diseases, the body attacks normal, healthy tissues.
BLOOD CIRCULATORY SYSTEM
major function
Circulates OXYGEN and removes Carbon Dioxide. Provides cells with NUTRIENTS. Removes the waste products of metabolism to the excretory organs for disposal. Protects the body against disease and infection.
name of organs
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role of organs
Hearth: The heart is a hollow muscular organ which beats over 100,000 times a day to pump blood around the body's 60,000 miles of blood vessels. The right side of the heart receives blood and sends it to the lungs to be oxygenated, while the left side receives oxygenated blood from the lungs and sends it out to the tissues of the body.
Arteries: carry oxygenated blood away from the heart. They are thick hollow tubes which are highly ELASTIC which allows them to DILATE (widen) and constrict (narrow) as blood is forced down them by the heart.
veins: Veins are a type of blood vessel that return deoxygenated blood from your organs back to your heart.
Capillaries and Their Functions. Capillaries are very tiny blood vessels — so small that a single red blood cell can barely fit through them. They help to connect your arteries and veins in addition to facilitating the exchange of certain elements between your blood and tissues.
Diseases
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Heart attack: A heart attack can occur when the blood supply is cut off from the heart, often by a blood clot.
Mitral valve regurgitation: happens when the mitral valve does not close all the way and causes a leak, allowing some of the oxygenated blood to flow backward.