Which structure is the dorsum sellae?

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Multiple Choice

Which structure is the dorsum sellae?

Explanation:
The dorsum sellae is the posterior boundary of the sella turcica, formed by a plate-like ridge of the sphenoid bone. This back wall defines the rear edge of the saddle-shaped depression that houses the pituitary gland (hypophyseal fossa). In other words, the structure described by the name dorsum sellae is that back ridge itself, not the entire sella turcica, not the body of the sphenoid alone, and not the occipital bone.

The dorsum sellae is the posterior boundary of the sella turcica, formed by a plate-like ridge of the sphenoid bone. This back wall defines the rear edge of the saddle-shaped depression that houses the pituitary gland (hypophyseal fossa). In other words, the structure described by the name dorsum sellae is that back ridge itself, not the entire sella turcica, not the body of the sphenoid alone, and not the occipital bone.

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