The interspinales cervicis is the cervical part of the interspinales muscle group. It is composed of six pairs of muscles that span the space between the tips of the spinous processes of successive vertebrae. Thus, they arise from the superior aspect of spinous processes of vertebrae C3-T1 and insert onto the spinous processes of vertebrae C2-C7.

Cesmebasi, Alper (1 January 2015), Tubbs, R. Shane; Rizk, Elias; Shoja, Mohammadali M.; Loukas, Marios (eds.), "Chapter 31 - Anatomy of the Cervical Plexus and Its Branches", Nerves and Nerve Injuries, San Diego: Academic Press, pp.441–449, doi: 10.1016/b978-0-12-410390-0.00032-9, ISBN 978-0-12-410390-0The nerve supply to the posterior scalene muscle is derived from the anterior rami of spinal nerves C6-C8, while its blood supply comes from the ascending cervical branch of the inferior thyroid artery and the transverse cervical branch of the thyrocervical trunk. In this article, we will explore the many functions of muscle in the human body as well as its basic structure, types and classifications. Fascicles or bundles (group of muscle fibres) of skeletal muscles can be arranged into four basic structural pattern, circular, parallel, convergent, and pennate. This difference in fascicular arrangement also accounts for the different shapes and functional capabilities of various skeletal muscles. The sternocleidomastoid muscle is innervated by the accessory nerve (CN XI) and anterior rami of spinal nerves C2 and C3. Vascular supply to this muscle is derived from branches of the occipital, posterior auricular, superior thyroid and suprascapular artery. The mylohyoid is a sheet-like muscle that forms the majority of the floor of the mouth. The mylohyoid arises from the mylohyoid line on the inner surface of mandible, and inserts into the mylohyoid raphe and superior aspect of the body of hyoid bone.

Merea, Valeria Silva; Pitman, Michael J. (1 January 2019), Chhetri, Dinesh K.; Dewan, Karuna (eds.), "Chapter 5 - Anatomy and Physiology of the Upper Esophageal Sphincter", Dysphagia Evaluation and Management in Otolaryngology, Elsevier, pp.29–34, doi: 10.1016/b978-0-323-56930-9.00005-x, ISBN 978-0-323-56930-9, S2CID 80855923

The anterior scalene muscle is innervated by the anterior rami of the spinal nerves C4-C6, and vascularized by the ascending cervical branch of inferior thyroid artery.

The inferior part arises from the anterior surface of bodies of vertebrae T1-T3 and inserts into the anterior tubercles of transverse processes of vertebrae C5-C6.M.H. Stone, M. Stone and W.A. Sands: Principles and Practice of Resistance Training, 1st edition, (2007), p. 175-182. The infrahyoid muscles are four muscles located inferior to the hyoid bone, that connect it to the larynx, sternum and scapula. These include the sternohyoid, omohyoid, sternothyroid and thyrohyoid muscles. Semispinalis capitis, that arises from the articular processes of vertebrae C4-C7 and transverse processes of vertebrae T1-T6. It then courses upwards to insert between the superior and inferior nuchal lines of the occipital bone.