| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| protective membrane of brain | 0.93 | 1 | 4856 | 94 | 28 |
| protective | 1.69 | 0.6 | 6426 | 14 | 10 |
| membrane | 0.99 | 0.2 | 6173 | 19 | 8 |
| of | 1.89 | 0.8 | 1425 | 96 | 2 |
| brain | 1.24 | 0.5 | 7287 | 70 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| protective membrane of brain | 1.65 | 0.8 | 3219 | 49 |
| protective membrane surrounding the brain | 1.74 | 0.7 | 1923 | 45 |
| protective membrane layers of the brain | 0.17 | 0.4 | 1058 | 87 |
| membrane covering the brain | 1.49 | 0.8 | 8690 | 75 |
| membrane that covers the brain | 0.91 | 0.9 | 5481 | 80 |
| protective covering of the brain | 1.14 | 0.7 | 1853 | 25 |
| membrane of the brain | 0.5 | 0.5 | 6667 | 32 |
| membrane surrounding the brain | 0.98 | 0.7 | 1886 | 20 |
| membrane that protects spinal cord and brain | 0.9 | 1 | 761 | 42 |
| protective structures of the brain | 0.71 | 0.5 | 2459 | 67 |
| a membrane that surrounds the brain | 0.51 | 0.1 | 5623 | 60 |
| membranes that protect brain and spinal cord | 1.47 | 0.7 | 6361 | 6 |
| innermost membrane that covers brain | 0.31 | 0.1 | 6665 | 12 |
| brain is covered by which membrane | 1.06 | 0.4 | 9351 | 7 |
| protective layer surrounding the brain | 0.32 | 0.9 | 1046 | 47 |
| innermost membrane covering brain | 1.55 | 0.6 | 605 | 64 |
