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Base of the skull, inferior or inner surface. Base of the skull, exterior or outer surface. Showing various muscle attachments. Details; ... The base of skull, ...
The inner surface of the skull-cap is concave and presents depressions for the convolutions of the cerebrum, together with numerous furrows for the lodgement of branches of the meningeal vessels. Along the middle line is a longitudinal groove, narrow in front, where it commences at the frontal crest, but broader behind; it lodges the superior ...
Inner surface of occipital bone. The inner surface of the occipital bone forms the base of the posterior cranial fossa. The foramen magnum is a large hole situated in the middle, with the clivus, a smooth part of the occipital bone travelling upwards in front of it.
In human anatomy, the neurocranium, also known as the braincase, brainpan, or brain-pan, [1] [2] is the upper and back part of the skull, which forms a protective case around the brain. [3] In the human skull, the neurocranium includes the calvaria or skullcap. The remainder of the skull is the facial skeleton.
The under surface of the jugular process is rough, and gives attachment to the Rectus capitis lateralis muscle and the lateral atlanto-occipital ligament; from this surface an eminence, the paramastoid process, sometimes projects downward, and may be of sufficient length to reach, and articulate with, the transverse process of the atlas.
The posterior surface forms the anterior part of the posterior cranial fossa of the base of the skull, and is continuous with the inner surface of the mastoid portion. Near the center is a large orifice, the internal acoustic opening , the size of which varies considerably; its margins are smooth and rounded, and it leads into the internal ...
A copper beaten skull is a phenomenon wherein intense intracranial pressure disfigures the internal surface of the skull. [18] The name comes from the fact that the inner skull has the appearance of having been beaten with a ball-peen hammer, such as is often used by coppersmiths. The condition is most common in children.
Inner surface of the base of skull, showing cranial foramina. The foramen is situated just anterior to the sphenopetrosal suture. [1]: 509 It is located posterolateral to the foramen ovale, and anterior to the sphenoidal spine. [2] A groove for the middle meningeal artery and vein extends anterolaterally from the foramen. [1]: 509