1
.
| Rib VIII |
2
.
| Costal groove VII |
3
.
| Posterior intercostal vein |
4
.
| Posterior intercostal artery (a piece of this vessel several cms. in length has been removed laterally) |
5
.
| Intercostal nerve VII |
6
.
| Endothoracic fascia |
7
.
| Costal pleura |
8
.
| Diaphragm |
9
.
| Posterior intercostal vein VI (cut off) |
10
.
| Posterior intercostal artery VI (cut off) |
11
.
| Intercostal nerve VI (cut off) |
12
.
| Costal pleura |
13
.
| Innermost intercostal muscle |
14
.
| Internal intercostal membrane |
15
.
| External intercostal muscle |
16
.
| Rib VII (cut off) |
17
.
| External intercostal muscle (reflected laterally) |
18
.
| Innermost intercostal muscle (reflected inward) |
19
.
| Internal intercostal muscle |
20
.
| Muscular branch of intercostal nerve |
21
.
| Lateral cutaneous branch intercostal nerve VII |