1 Larynx
2 Thyroid cartilage
3 Thyro-arytenoid muscle
4 Anterior jugular vein
5 Sternohyoid muscle
6 Transverse arytenoid muscle
7 Thyrohyoid muscle
8 Vagus nerve (X)
9 Sternothyroid muscle
10 Platysma
11 Cricoid cartilage (lamina)
12 Inferior constrictor muscle of pharynx
13 Thyroid gland
14 Longus colli muscle
15 Thyroid cartilage (inferior horn)
16 Longus capitis muscle
17 Common carotid artery
18 Anterior scalene muscle
19 Internal jugular vein
20 Sternocleidomastoid muscle
21 External jugular vein
22 Cervical vertebra (C6)
23 Phrenic nerve
24 Spinal nerves (C4, C5, and C6)
25 Esophagus
26 Vertebral artery
27 Middle scalene muscle
28 Longissimus capitis muscle
29 Posterior scalene muscle
30 Longissimus cervicis muscle
31 Levator scapulae muscle
32 Spinal nerve root (C7)
33 Articular process and posterior arch of C7 vertebra
34 Semispinalis capitis muscle
35 Spinal cord
36 Splenius cervicis muscle
37 Spinalis cervicis muscle and multifidus muscle
38 Anterior and posterior spinal nerve roots (C8)
39 Semispinalis cervicis muscle
40 Trapezius muscle
41 Splenius capitis muscle
42 Spinous process of vertebra
2 Thyroid cartilage
3 Thyro-arytenoid muscle
4 Anterior jugular vein
5 Sternohyoid muscle
6 Transverse arytenoid muscle
7 Thyrohyoid muscle
8 Vagus nerve (X)
9 Sternothyroid muscle
10 Platysma
11 Cricoid cartilage (lamina)
12 Inferior constrictor muscle of pharynx
13 Thyroid gland
14 Longus colli muscle
15 Thyroid cartilage (inferior horn)
16 Longus capitis muscle
17 Common carotid artery
18 Anterior scalene muscle
19 Internal jugular vein
20 Sternocleidomastoid muscle
21 External jugular vein
22 Cervical vertebra (C6)
23 Phrenic nerve
24 Spinal nerves (C4, C5, and C6)
25 Esophagus
26 Vertebral artery
27 Middle scalene muscle
28 Longissimus capitis muscle
29 Posterior scalene muscle
30 Longissimus cervicis muscle
31 Levator scapulae muscle
32 Spinal nerve root (C7)
33 Articular process and posterior arch of C7 vertebra
34 Semispinalis capitis muscle
35 Spinal cord
36 Splenius cervicis muscle
37 Spinalis cervicis muscle and multifidus muscle
38 Anterior and posterior spinal nerve roots (C8)
39 Semispinalis cervicis muscle
40 Trapezius muscle
41 Splenius capitis muscle
42 Spinous process of vertebra