Longus capitis muscle

Longus capitis muscle

The longus capitis muscle is a prevertebral muscle of the neck. It is situated anterior to the cervical vertebrae and plays a crucial role in the flexion of the head and neck.

Anatomy

The longus capitis muscle originates from the anterior tubercles of the transverse processes of the third to sixth cervical vertebrae (C3-C6). It inserts into the basilar part of the occipital bone.

Innervation

The longus capitis muscle is innervated by the anterior rami of the first to third cervical spinal nerves (C1-C3).

Function

The primary function of the longus capitis muscle is to flex the head and neck. It also assists in stabilizing the cervical spine.

Blood Supply

The blood supply to the longus capitis muscle is provided by branches of the vertebral artery and the ascending cervical artery.

Clinical Significance

Dysfunction or injury to the longus capitis muscle can result in neck pain and limited range of motion. It may also contribute to conditions such as cervical spondylosis and tension headaches.

See Also

• Longus colli muscle
• Cervical vertebrae
• Neck muscles
• Vertebral artery