17785296
Descrição
FlashCards por Sam Gunnell, atualizado more than 1 year ago
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Criado por Sam Gunnell
mais de 5 anos atrás
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| Questão | Responda |
| What is tissue fluid? | Fluid surrounding the cells that make up tissue |
| How is tissue fluid made? | As blood flows through capillaries, plasma leaks out of the capillary walls ad into the spaces between cells |
| What is tissue fluid made up of? | Oxygen, water and nutrients |
| What is tissue fluids' function? | To provide cells with oxygen and nutrients and allow the cells to release waster products into it |
| By what process does substances move out of the capillaries? | Pressure filtration |
| What is hydrostatic pressure? | Pressure of the blood from heart contractions (blood pressure) |
| At which of end of the capillaries do substances leave the capillaries into the spaces between cells, arterial end or venous end? Why? | Arterial as the hydrostatic pressure at the arterial end is greater than that of the tissue fluid, forcing fluid out of the capillaries and into the spaces around the cells, forming tissue fluid |
| What is ontonic pressure? | A net loss of water from capillaries, giving them a reduced water potential |
| Is the net amount of fluid moving in or out of the cell greater at the arterial or venous end? | Venous (more enters than leaves) |
| Why does some water enter the capillaries at the venous end? | The capillaries have a lower water potential than the tissue fluid as water left the capillaries at the arterial end to form tissue fluid |
| What is lymph? | The fluid released from the capillaries at the arterial end that doesn't immediately re-enter the capillaries at the venous end |
| What are the differences between lymph and tissue fluid? (think about what the tissue fluid does) | Lymph was less O2 but more CO2 and more proteins |
| What happens to lymph? | It is transported in lymph vessels back the the heart |
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