Sphenoid bone. Upper surface. (Dorsum sellae is labeled in the white portion in the center.)
Base of the skull. Upper surface. (Dorsum sellae is not labeled, but sphenoid bone is in yellow, and Dorsum sellae would horizontally be at the exact center, and vertically at the level of the posterior clinoid process.)
Details
Identifiers
Latin
dorsum sellae, dorsum sella turcica
TA98
A02.1.05.010
TA2
594
FMA
54718
Anatomical terms of bone
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The dorsum sellae is part of the sphenoid bone in the skull. Together with the basilar part of the occipital bone it forms the clivus.
In the sphenoid bone, the anterior boundary of the sella turcica is completed by two small eminences, one on either side, called the middle clinoid processes, while the posterior boundary is formed by a square-shaped plate of bone, the dorsum sellae, ending at its superior angles in two tubercles, the posterior clinoid processes, the size and form of which vary considerably in different individuals.
The dorsumsellae is part of the sphenoid bone in the skull. Together with the basilar part of the occipital bone it forms the clivus. In the sphenoid...
hypothalamus. The diaphragma sellae is an important neurosurgical landmark. The diaphragma sellae has a posterior boundary at the dorsumsellae and an anterior boundary...
sellae. Completing the formation of the saddle posteriorly is the dorsumsellae, which is continuous with the clivus, inferoposteriorly. The dorsum sellae...
superior angles of the petrous portions of the temporal bones and the dorsumsellae; laterally by the temporal squamae, sphenoidal angles of the parietals...
and pons. Anteriorly, the posterior cranial fossa is bounded by the dorsumsellae, posterior aspect of the body of sphenoid bone, and the basilar part...
posterior boundary is formed by a square-shaped plate of bone, the dorsumsellae, ending at its superior angles in two tubercles, the posterior clinoid...
(or basal cistern) is the subarachnoid cistern situated between the dorsumsellae (anteriorly): 440 and the two cerebral peduncles: 440 of the mesencephalon...
the notch for the passage of the abducent nerve on either side of the dorsumsellae of the sphenoid bone. It articulates with the apex of the petrous portion...
where it ends in a hook-like extremity in the region of the future dorsumsellae of the sphenoid bone. Initially, it exists between the neural tube and...
tubercles of the sphenoid bone situated at the superior angles of the dorsumsellæ (one on each angle) which represents the posterior boundary of the sella...
base of the brain, between the two cerebral peduncles of midbrain and dorsumsellae and continuous below with the pontine cistern and superiorly with the...
groove) 2: Posterior borders of the lesser wings of the sphenoid 3: Dorsumsellae of the sphenoid bone 4: Superior borders of the petrous part of the...
brain is ambiguous at this point.[citation needed] Also, the tuberculum sellae is found at the base of the skull, which holds the hypophysis. Areolar glands...
structures are placed at risk. The upper third lies inferior to the dorsumsellae and posterior clinoid processes and superior to the petrous apex, the...
The sella turcica is bound in front by the tuberculum sellae and behind by the dorsumsellae. Behind the chiasm lies the floor of the third ventricle...
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