Lymphatic System-20
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| One function of the lymphatic system is to return: | Tissue fluid to the blood stream
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| One function of the lymphatic system is to absorb: | Fats and fat soluble vitamins from intestines
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| One function of the lymphatic system is to defend: | The body against disease
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| Lymph is a clear _______ that resembles _______. | Fluid; plasma
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| Lymph is composed of: | Water, electrolytes, waste products, and proteins
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| Approximately how much lymph filters from interstitium (tissue space) per day? | 20/L per day
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| To where is filtered lymph returned? | Venous blood
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| Distribution of lymphatic vessels is similar to what other vessel? | Veins
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| Lymphatic capillaries contain _____ and _____. | Pores; valves
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| Capillaries drain into larger vessels which drain into the venous system at the junction of the ________ _______ and the _____ ____ ____ on either side. | Subclavian vein; internal jugular vein
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| The thoracic duct drains _____ of the body. | 3/4
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| Right lymphatic duct drains remaining ______ (right upper quadrant). | 1/4
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| The lymphatic vessels also clean crap out of our: | Blood capillaries
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| Give the shape of lymph nodes. | Small, pea shaped patches of lymphatic tissue
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| Lymph nodes function by fltering lymph as it: | Flows through lymphatic vessels
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| Name three areas of lymphatic vessel clustering | Cervical, axillary, inguinal
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| Lymph nodes consist of lymph nodules (__________) and ________. | Lymphocytes and macrophages; lymph sinuses
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| _______ vessels carry lymph TOWARD the lymph node. | Afferent
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| _______ vessels carry lymph AWAY from the lymph node. | Efferent
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| Tonsils are partially __________ lymph nodes. | Encapsulated
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| Location of tonsils: | Nose and mouth
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| Three sets of tonsils, which include: | Palatine, Pharyngeal, Lingual
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| Thymus gland located in: | Upper mediastinum
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| Funtion of thymus gland | Development of immune system before birth and shortly after birth
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| When does the thymus gland begin to shrink? | Right after puberty
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| The thymus gland secretes _______(hormones) that promote the _________ and maturation of _______ in lymphoid tissue. | Thymosins; proliferation; T-cells
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| The only lymphatic organ that does NOT filter lymph | Spleen
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| Largest lymphoid organ | Spleen
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| What does the spleen do to blood? | Filters and cleans the blood
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| Name the two tissue types of the spleen. | Red pulp and white pulp
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| The white pulp of the spleen is lymphoid tissue that surrounds: | Blood vessels
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| The red pulp of the spleen is made up of blood-filled venous sinuses that also contain: | Lymphocytes and macrophages
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| Four additional functions of spleen from notes | 1) Blood storage 2) Destroys old RBCs 3) Erythropoiesis before birth 4) Lymphocyte production
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| When does lymphoid tissue reach peak development? | At puberty
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| After puberty, what happens to lymphoid tissue? | It shrinks gradually
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| With age, what replaces thymus gland tissue? | Connective tissue
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| Thymosins ________ in production with age. | Decrease
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| Along with decreased thymosin production, what else decreases with age? | Defense mechanisms
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