Dorsum sellae

Dorsum sellae
Bone: Dorsum sellae
Gray145.png
Sphenoid bone. Upper surface. (Dorsum sellae is labeled in the white portion in the center.)
Gray193.png
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.)
Gray's subject #35 147

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 sellæ, ending at its superior angles in two tubercles, the posterior clinoid processes, the size and form of which vary considerably in different individuals.

Additional images

  • Tentorium cerebelli from above.

External links

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.

v · d · eBones of head and neck: the neurocranium of the skull (TA A02.1.01–07, GA 2.129–155)
Occipital
Other
Parietal
Frontal
Ethmoidal notch · Fossa for lacrimal gland · Trochlear fovea · Frontal sinus · Frontonasal duct
Temporal
Sphenoid
Surfaces
fossae (Pterygoid, Scaphoid) · pterygoid plates (Lateral, Medial) · Pterygoid canal · Hamulus
Other
Ethmoid
Plates
Surfaces
Ethmoid sinus · ethmoidal foramina (Posterior, Anterior)

M: BON/CAR

anat(c/f/k/f, u, t/p, l)/phys/devp/cell

noco/cong/tumr, sysi/epon, injr

proc, drug(M5)

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