The neck muscles (cervical muscles)
Cervical Muscles: Anatomy, Function, and Clinical Relevance Introduction The neck, or cervical region is a critically important area of anatomy because it supports the head, provides spanning movement, and protects the neurovascular structures. The cervical muscles contribute to posture, head movement, respiration and stabilize the cervical spine. The airflow of these muscles can be painful, grim, headache and limitation. Notifying the anatomy and clinical significance of them is important for physiotherapists, clinicians and students. The cervical muscles can be broadly divided into superficial, intermediate, and deep groups , with each group performing specific functions. 1. Superficial Muscles Sternocleidomastoid (SCM): Origin: Manubrium of sternum and medial third of clavicle Insertion: Mastoid process of temporal bone and superior nuchal line Nerve supply: Spinal accessory nerve (cranial nerve XI) and cervical plexus (C2–C3) Function: Rotates head to opposite sid...