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Higher Human 2.5
2.5- Veins, Arteries + Capillaries
Question | Answer |
---|---|
What is the central lumen of all vessels lined with ? | Endothelial Cells |
What vessels has a thick outer wall made up of connective tissue and elastic fibres? | artery |
What vessel contains a thin outer wall? | veins |
What does does blood plasma contain that tissue fluid does not? | proteins |
What vessels absorb excess tissue fluid after pressure filtration? | Lymphatic vessels |
What causes plasma to pass through capillary walls into the tissue fluid surrounding the cells? | Pressure filtration |
What vessels allow exchange of substances with tissues through their thin walls? | capillaries |
What is the relaxation of artery walls to increase blood flow known as? | vasodilation |
What is the contraction of the artery walls to reduce blood flow known as? | vasoconstriction |
What vessel contains valves to prevent blood flowing in the wrong direction? | veins |
What happens to blood pressure as blood moves away from the heart? | decreases |
What is found in the middle layer of arteries that allows them to tolerate surge of blood? | elastic fibres |
What is the correct order of how blood circulates the body? | heart--> arteries--> capillaries--> veins--> heart |