Tissue fluid Flashcards

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1
Q

What is tissue fluid?

A

The fluid that surrounds cells in tissues

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2
Q

What makes up tissue fluid?

A

Made from small molecules that leave the blood plasma such as water and oxygen and nutrients and small proteins

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3
Q

What is the function of tissue fluid?

A

Cells take in nutrients, oxygen and water from tissue fluid then releases metabolic waste back into it (eg CO2) for capillaries to take in

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4
Q

Arteriole end of a capillary

A

Hydrostatic pressure in capillaries is greater than in tissue fluid so fluid is forced out the capillary
Small osmosis of water into capillary as water potential in fluid > water potential in capillary but the net movement of water is out of capillary

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5
Q

What is the hydrostatic pressure in arteriole end caused by?

A

Ventricle contracting and sending blood from arteries to arterioles

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6
Q

Smaller osmosis of water into capillary

A

Due to higher water potential in the tissue fluid than capillary thus osmosis from high water potential to low water potential

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7
Q

Arteriole end net movement

A

Overall, water and nutrients and oxygen out of capillary into tissues

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8
Q

What proteins remain in the Arteriole end of capillary?

A

Plasma and large proteins remain in capillaries

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9
Q

Venule end of capillary

A

Net flow movement of water into capillary via osmosis
Smaller hydrostatic pressure outwards

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10
Q

What is the osmotic movement of water into capillary at the Venule end caused by?

A

Lower water potential in capillary than in fluid due to a high conc of plasma proteins remaining in capillary
So osmosis of water into the capillary

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11
Q

Smaller hydrostatic pressure at Venule end of capillary

A

Caused by lower hydrostatic pressure as the pressure begins to decrease thus small movement into capillary

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