| I: | The interstitial fluid or tissue fluid has the same mineral distribution as that in plasma. |
| II: | Exchange of nutrients, gases, etc., between the blood and the cells always occur through this fluid. |
| III: | The lymphatic system collects this fluid and drains it back to the major veins. |
| I: | has the same mineral distribution as that in plasma. |
| II: | has more protein than that in plasma. |
| 1. | haemoglobin | 2. | Na+ |
| 3. | K+ | 4. | albumin |