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The suboccipital muscles are a group of muscles defined by their location to the occiput. Suboccipital muscles are located below the occipital bone . These are four paired muscles on the underside of the occipital bone; the two straight muscles ( rectus ) and the two oblique muscles ( obliquus ).
2) Dorsal ramus of nerve C1-suboccipital nerve 3) Suboccipital venous plexus. The purpose of these muscles is to provide fine motor function in movements of the head. The actions of trapezius, sternocleidomastoid and other larger muscles that move the head are refined by the relatively small suboccipital triangle muscles.
The obliquus capitis superior muscle (/ ə ˈ b l aɪ k w ə s ˈ k æ p ɪ t ɪ s /) is a small [citation needed] muscle in the upper back part of the neck. It is one of the suboccipital muscles. It attaches inferiorly at the transverse process of the atlas (first cervical vertebra); it attaches superiorly at the external surface of the ...
The obliquus capitis inferior muscle (/ ə ˈ b l aɪ k w ə s ˈ k æ p ɪ t ɪ s /) is a muscle in the upper back of the neck.It is one of the suboccipital muscles.Its inferior attachment is at the spinous process of the axis; its superior attachment is at the transverse process of the atlas.
The rectus capitis posterior major (or rectus capitis posticus major [citation needed]) is a muscle in the upper back part of the neck. It is one of the suboccipital muscles . Its inferior attachment is at the spinous process of the axis (Second cervical vertebra) ; its superior attachment is onto the outer surface of the occipital bone on and ...
It is one of the suboccipital muscles. Its inferior attachment is at the posterior arch of atlas; its superior attachment is onto the occipital bone at and below the inferior nuchal line. The muscle is innervated by the suboccipital nerve (the posterior ramus of first cervical spinal nerve). The muscle acts as a weak extensor of the head.
The myodural bridge or miodural ligament is a bridge of connective tissue that extends between the suboccipital muscles and the cervical spinal dura mater, [1] the outer membrane that envelops the spinal cord. It provides a physical connection between the musculoskeletal and nervous systems, and the circulation of cerebrospinal fluid. [2]
The suboccipital nerve (first cervical dorsal ramus) is the dorsal primary ramus of the first cervical nerve (C1). It exits the spinal cord between the skull and the first cervical vertebra, the atlas. [1] It lies within the suboccipital triangle along with the vertebral artery, where the artery enters the foramen magnum.