| Question | Answer |
| Blood vessel with large lumen, relatively thin walls | |
| Blood vessel with small lumen, relatively thick walls | |
| Something found in the former vessel but not the latter | |
| Function of these | |
| Blood vessel whose walls are a single cell thick | |
| Only vein in body to carry oxygenated blood | |
| Only artery in body to carry deoxygentaed blood | |
| Type of circulatory system in humans (__________ circulation) | |
| Pale yellow fluid comprising 50-55% of blood, carries carbon dioxide, urea and solutes | |
| Cells comprising around 45% of blood | |
| Cells comprising under 1% of blood | |
| Respiratory pigment in RBCs | |
| Gas transported by this pigment | |
| Shape of RBCs | |