Flashcards
Tissue Fluid and Lymph Vessels
Flashcards do conjunto (21)
- 1What is tissue fluid?Tissue fluid is the fluid surrounding cells in tissue. It is made from oxygen, water and nutrients
- 2Outline the process of pressure filtrationq1. At the arteriole end, the hydrostatic pressure inside capillaries is greater than that in the tissue fluid - this forces fluid out of capillaries, forming tissue fluid
2. As fluid leaves, the hydrostatic pressure reduces in capillaries; it is lower at the venous end
3. As water leaves capillaries, the water potential decreases
4. Plasma proteins in capillaries generate oncotic pressure; at the venous end there is lower water potential and high oncotic pressure
5. As water potential in capillaries is lower than in the tissue fluid, some water re-enters the capillaries from the tissue fluid at the venous end - 3TRUE OR FALSE Pressure is highest at the end of the capillary bedFALSE
Pressure is highest at the START of a capillary bed nearest the arteriole - 4What is the high pressure at the start of the capillary bed caused by?The high pressure is caused by the left ventricle contracting and sending blood out of the heart at high pressure
- 5TRUE OR FALSE: Not all of the tissue fluid re-enters at the venous endTRUE
Some excess tissue fluid is left over - 6What is the lymphatic system?A drainage system made up of lymph vessels
- 7What happens to the extra fluid that does not re-enter at the venous end of the capillary bed?Excess tissue fluid passes into lymph vessels and are eventually returned to the blood through the lymphatic system
- 8Excess tissue fluid passes into lymph vessels. Once inside, what is the tissue fluid called?Lymph
- 9Complete the sentence: _________ in the vessels stop the lymph going ______________.VALVES in the vessels stop the lymph going BACKWARDS.
- 10Where in the body is excess tissue returned to the blood?Lymph gradually moves towards the main lymph vessels in the thorax. Here, it is returned to the blood near the heart
- 11Where are red blood cells found?Blood
- 12Red blood cells are NOT found in tissue fluid or lymph. Why?Red blood cells are too big to get through capillary walls
- 13Where are white blood cells found?Blood
Tissue fluid (very few)
Lymph - 14There are very few white blood cells tissue fluid. Why?Most white blood cells are in the lymphatic system. They only enter tissue fluid if there is an infection
- 15Where are platelets found?Blood
- 16In what circumstances are platelets found in tissue fluid?Platelets are only in tissue fluid if the capillaries are damaged
- 17Where are proteins found?Blood
Tissue fluid (very few)
Lymph (only antibodies) - 18Why are there only very few proteins in tissue fluid/lymph?Most plasma proteins are too big to get through capillary walls
- 19Where is water found?Blood
Tissue fluid
Lymph - 20TRUE OR FALSE: Tissue fluid and lymph have a lower water potential than bloodFALSE
Tissue fluid and lymph have a HIGHER water potential than blood - 21Where are dissolved solutes found?Blood
Tissue fluid
Lymph
(Solutes, e.g. salt, can move freely between the three)
Informações
- Descrição
- O usuário eliminou as informações de disciplina FlashCards sobre Tissue Fluid and Lymph Vessels, criado por Usuário eliminado em 05-03-2018.
- Criado por
- Usuário eliminado
- Visualizações
- 23
- Histórico
-
- Criado por Yinka F · 1 fev 2018
- Copiado por Yinka F · 5 mar 2018
- Avaliação