1 — First rib [I]; 2 — Scalenus posterior; Posterior scalene; 3 — Scalenus medius; Middle scalene; 4 — Longissimus cervicis; 5 — Levator scapulae; 6 — Splenius cervicis; 7 — Semispinalis capitis; 8 — Longissimus capitis; 9 — Splenius capitis; 10 — Ligamentum nuchae; Nuchal ligament; 11 — Trapezius; 12 — Vertebra prominens [CVII], spinous process; 13 — Iliocostalis cervicis; 14 — Semispinalis thoracis; 15 — Second rib [II]
