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What does the lymph system consist of?
- 1. Fluid called lymph
- 2. Lymph nodes
- 3. Lymph vessels
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At what stage does the fluid become called lymph?
Once enters the lymph system
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What percentage of tissue fluid becomes lymph?
10% of tissue fluid is lymph.
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What are four other names for lymph?
- Leaked plasma
- Tissue fluid
- Extra cellular fluid
- Interstitial fluid
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What does the lymphatic system involve?
Lymphatic system: involves a one way system of vessels that returns excess tissue fluid to the bloodstream.
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What is tissue fluid?
Tissue fluid: extremely thin layer of fluid (plasma) that surrounds all cells and comes from diffusion of plasma through capillary walls. It is plasma without red blood cells, platelets and proteins (too large).
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How does the tissue fluid pass through capillary walls?
Diffusion occurs through the capillary walls due to blood pressure.
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Tissue fluid is plasma with what removed?
- Plasma without:
- Red blood cells,
- Platelets,
- Proteins.
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Why are red blood cells, platelets and proteins not included in tissue fluid?
They’re too large to pass through.
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What causes diffusion to occur through capillary walls?
Diffusion occurs due to blood pressure.
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What do you call someone who can’t clot blood?
Haemophiliac
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What do lymph vessels do?
Lymph vessels, like capillaries, are present throughout all tissues and collect thus excess tissue fluid which is then called lymph.
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What is the excess tissue fluid called when collected by lymph vessels?
Lymph
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Give a note on the lymphatic system (5p)?
- Involves a one way system of vessels that returns excess tissue fluid to the bloodstream.
- Tissue Fluid- extremely thin layer of fluid (plasma) that surrounds all cells and comes from diffusion of plasma through capillary walls.
- It is plasma without red blood cells, platelets and proteins (too large).
- Diffusion occurs through the capillary wall due to blood pressure.
- Lymph vessels, like capillaries, are present throughout all tissues and collects this excess tissue fluid which is then called lymph.
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