• Origin

Spinous and transverse processes of the cervical vertebrae (C1–C7), primarily from the posterior elements of the vertebrae including laminae and articular processes.

Includes contributions from deeper intrinsic muscles such as semispinalis cervicis, multifidus, longissimus cervicis, iliocostalis cervicis, and splenius cervicis

• Insertion

Spinous and transverse processes above the level of origin.

Occipital bone (for upper attachments, especially of semispinalis capitis).

Ribs and other vertebral structures depending on the specific muscle.

• Agonist(s)

- Upper trapezius,

- Levator scapulae,

- Splenius capitis and cervicis (for extension and rotation),

- Erector spinae group (cervical portion).

• Antagonist(s)

- Sternocleidomastoid (in cervical flexion),

- Scalenes (in cervical flexion and lateral flexion),

- Longus capitis and longus colli (deep neck flexors).

• Function

Extension, lateral flexion, and rotation of the cervical spine.

Postural support of the head and neck.

Stabilization and coordination of fine motor head movements.

TRIGGER POINT(S)

• Location

Trigger points commonly develop along the posterior neck, particularly near the spinous and transverse processes of the cervical vertebrae (C2–C7).

Often found deep to the trapezius and splenius muscles.

Clusters may be noted along the lamina groove and upper cervical attachments.

• Pain Referral Pattern

Pain may refer to the posterior neck, base of the skull, and upper shoulders.

Referred pain can radiate to the occiput, mimicking tension headaches.

Some patterns extend into the upper thoracic region or behind the eyes.

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Potential Causes

• Poor posture, particularly forward head posture and prolonged computer or phone use.

• Whiplash or cervical trauma.

• Sleeping with inadequate neck support.

• Repetitive or sustained neck extension (e.g., looking up for prolonged periods).

• Emotional stress leading to neck muscle tension.

• Lack of neck mobility and core control.

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Prevention Tips

• Maintain neutral head posture, especially during prolonged sitting or desk work.

• Use ergonomic setups that keep screens at eye level.

• Incorporate regular neck mobility and strengthening exercises.

• Apply heat and gentle stretching during periods of muscle tightness.

• Practice stress management and relaxation techniques to reduce muscle tension.

• Avoid sudden, jerky movements of the neck and ensure adequate warm-up before activity.