What Are the Suboccipital Muscles?
The suboccipital muscle refers to the muscle group of the spinal region located at the back of the neck. From shallow to deep, it is the anterior rectus muscle, the lateral rectus muscle, the posterior large rectus muscle, the posterior small rectus muscle, the oblique muscle below the head, and the oblique head. muscle.
Suboccipital muscle
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- Chinese name
- Suboccipital muscle
- The suboccipital muscle refers to the muscle group of the spinal region located at the back of the neck. From shallow to deep, it is the anterior rectus muscle, the lateral rectus muscle, the posterior large rectus muscle, the posterior small rectus muscle, the oblique muscle below the head, and the oblique head. muscle.
- Related structure
- Under the occipital, deep in the upper part of the neck area, there is a triangle surrounded by the suboccipital muscles, which is called the suboccipital triangle. The inner boundary is the posterior head rectus muscle, the outer upper boundary is the superior oblique muscle, and the outer lower boundary is the oblique muscle of the head. The base of the triangle is the posterior atlanto-occipital membrane and posterior atlanto-vertebral arch. The superficial surface is attached to the clip and semispinalis muscle by dense connective tissue, with the great occipital nerve running in between. The suboccipital nerve and vertebral artery pass through the triangle. The vertebral artery turns inward after penetrating the transverse foramen of the atlas, and runs in the vertebral sulcus above the posterior arch of the atlas, then penetrates the posterior atlanto-occipital membrane into the spinal canal, and then enters the skull through the foramen magnum. Excessive rotation of the head or spasm of the suboccipital muscle can compress the vertebral artery and cause insufficient intracranial blood supply. The inferior occipital nerve is the posterior branch of the first cervical nerve, which penetrates between the vertebral artery and the posterior arch of the atlas, and passes through the inferior occipital triangle to control the infraoccipital muscle. [1]