2 Obliquus capitis superior muscle
3 Longissimus capitis muscle
4 Rectus capitis posterior major muscle
5 Rectus capitis posterior minor muscle
6 Sternocleidomastoid muscle
7 Deep cervical vein
8 Spinous process of axis (C2)
9 Nuchal ligament
10 Splenius capitis muscle
11 Semispinalis cervicis muscle
12 Semispinalis capitis muscle
13 Trapezius muscle
14 Spinous process
15 Rhomboid muscle
16 Multifidus muscle
17 Levator scapulae muscle
18 Interspinous ligament
19 Second rib
20 Intercostal muscle
21 Arch of T3 vertebra
22 Costotransverse joint (T3)
23 Lung (right)
24 Spinal cord