Occipital ridge

Anatomical feature of the human skull

Overview

The occipital ridge is a prominent anatomical feature located at the back of the human skull. It is part of the occipital bone, which forms the posterior portion of the cranium. The occipital ridge serves as an attachment point for several muscles and ligaments that support the head and neck.

Diagram showing the location of the occipital ridge on the human skull.

Anatomy

The occipital ridge is situated at the base of the skull, where the occipital bone meets the parietal bones. It is characterized by a bony prominence that can be felt through the skin at the back of the head. This ridge is part of the external occipital protuberance, a feature that varies in size and shape among individuals.

External Occipital Protuberance

The external occipital protuberance is a midline bony prominence on the occipital bone. It is more pronounced in some individuals and serves as an important landmark in anatomy and forensic science.

Muscle Attachments

Several muscles attach to the occipital ridge, including the trapezius and sternocleidomastoid muscles. These muscles play a crucial role in head and neck movement and posture.

Function

The primary function of the occipital ridge is to provide structural support and attachment points for muscles and ligaments. It helps stabilize the head and allows for a range of movements, including flexion, extension, and rotation.

Clinical Significance

The occipital ridge can be involved in various medical conditions, such as occipital neuralgia, which is characterized by chronic pain in the back of the head. This condition may arise from irritation or injury to the nerves that pass over the occipital ridge.

Related pages

• Occipital bone
• External occipital protuberance
• Trapezius muscle
• Sternocleidomastoid muscle
• Occipital neuralgia