Squamous part of occipital bone: Difference between revisions
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File:Squamous_part_of_occipital_bone05.png|Squamous part of occipital bone | |||
File:Gray131_Squama_occipitalis.png|Squama occipitalis | |||
File:Squamous_part_of_occipital_bone_-_animation2.gif|Squamous part of occipital bone - animation 2 | |||
File:Squamous_part_of_occipital_bone_-_animation.gif|Squamous part of occipital bone - animation | |||
File:Gray130.png|Squamous part of occipital bone | |||
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Latest revision as of 05:01, 18 February 2025
Squamous part of occipital bone
The Squamous part of occipital bone is the largest part of the occipital bone, one of the bones that make up the human skull. It is located at the back of the skull, below the parietal bones and above the foramen magnum.
Etymology[edit]
The term "squamous" comes from the Latin word "squama", meaning "scale", which refers to the flat, scale-like appearance of this part of the bone. The term "occipital" comes from the Latin "occiput", which means "back of the skull".
Anatomy[edit]
The squamous part of the occipital bone is marked by a prominent ridge called the external occipital protuberance. Above this feature, the bone is divided into two halves by a groove for the superior sagittal sinus. The halves are called the right and left occipital planes. Below the protuberance, the bone is divided into two halves by the median nuchal line. These halves are called the right and left nuchal planes.
Clinical significance[edit]
The squamous part of the occipital bone is important in clinical medicine because it forms part of the cranial cavity, which houses the brain. It is also the attachment site for several muscles, including the sternocleidomastoid, trapezius, and splenius capitis muscles. Damage to this area can lead to serious neurological problems.
