1 Sternohyoid muscle
2 Thyrohyoid muscle
3 Omohyoid muscle
4 Larynx
5 Thyroid cartilage (lamina)
6 Anterior jugular vein
7 Platysma
8 Piriform recess
9 Arytenoid cartilage
10 Thyroid gland
11 Cricoid cartilage
12 Hypopharynx
13 Common carotid artery
14 Inferior constrictor muscle of pharynx
15 Internal jugular vein
16 Vagus nerve (X)
17 Longus colli muscle
18 Phrenic nerve
19 External jugular vein
20 Longus capitis muscle
21 Cervical vertebra C5 (body)
22 Anterior scalene muscle
23 Sternocleidomastoid muscle
24 Posterior scalene muscle
25 Longissimus cervicis muscle
26 Spinal nerve (C4)
27 Anterior and posterior nerve roots
28 Middle scalene muscle
29 Spinal cord
30 Vertebral artery
31 Spinalis cervicis muscle and multifidus muscle
32 Spinal nerve (C5)
33 Splenius cervicis muscle
34 Levator scapulae muscle
35 Semispinalis capitis muscle
36 Inferior articular process of vertebra
37 Splenius capitis nerve
38 Spinal nerve root (C6)
39 Trapezius muscle
40 Posterior arch of C6 vertebra
41 Semispinalis cervicis muscle
42 Spinous process of C6 vertebra