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Lymphatic system
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what are 3 functions of the lymphatic system?
tissue drainage
absorption of fluid in small intestine
immunity
how much fluid is leaked from blood plasma into the tissues per day?
21L
How much fluid does the lymphatic system drain from the tissues back into the circulation per day?
3-4L
what material is absorbed in the small intestine into lymphatic vessels?
fat
fat soluble materials
what the lymph organs?
spleen and thymus
What are the 6 structure that make up the lymphatic system?
lymph
lymph vessels
lymph nodes
lymph organs (spleen & thymus)
diffuse lymphoid tissue e.g. tonsils
bone marrow
What colour and consistency is lymph?
clear watery fluid
what does lymph transport?
plasma proteins that have leaked from capillaries back into the blood stream
large particles to be filtered and destroyed by lymph nodes
What does lymph contain and where does it originate from?
lymphocytes
originates from red bone marrow
Where do lymph capillaries originate?
blind ending tubes in interstitial space
How to large lymph vessels prevent back flow?
contain valves
how is lymph moved along the large vessels?
muscles rhythmically contracts
Where do the large lymph vessels eventually join?
They join to form 2 ducts which empty the lymph into the subclavian veins
What veins do is the lymph emptied into?
subclavian veins
Where is lymph drained through?
lymph nodes
what do lymph nodes do?
destroys damaged and foreign tissue cells by marcophages and antibodies known as phagocytosis
What are the two lymph organs?
spleen
thymus
What is the largest lymph organ?
spleen
What does the spleen contain?
lymphocytes and macrophages
What do lymphocytes and macrophages do in the spleen?
destroy old/damaged erythrocytes
how much blood does the spleen store?
350ml
What does the thymus gland do?
matures lymphocytes
What do lymphoid tissues contain?
lymphocytes to allow early detection of antigens
What does an antigen cause?
stimulates the body's immunological response
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Author
davidgoddard93
ID
345344
Card Set
Lymphatic system
Description
lymphatic system
Updated
2019-02-13T21:30:18Z
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