turkish saddle

WordNet

1. put a saddle on; "saddle the horses"
2. a piece of leather across the instep of a shoe
3. a seat for the rider of a horse or camel
4. posterior part of the back of a domestic fowl
5. cut of meat (especially mutton or lamb) consisting of part of the backbone and both loins
6. load or burden; encumber; "he saddled me with that heavy responsibility"
7. of or relating to or characteristic of Turkey or its people or language; "Turkish towels"
8. a Turkic language spoken by the Turks
9. subject to an imposed burden; "left me saddled with the bill"; "found himself saddled with more responsibility than power"
10. having a saddle on or being mounted on a saddled animal; "saddled and spurred and ready to ride"

PrepTutorEJDIC

1. 〈C〉(馬や他の動物の背にのせる)『くら』 / 〈C〉(くらを置く)動物の背 / 〈C〉(自転車などの)サドル / 〈C〉(二つの峰の間の尾根の)あん部 / 《おもに英》〈U〉〈C〉(羊などの)くら下肉 / 〈馬など〉‘に'くらを置く(つける)《+『up』+『名』,+『名』+『up』》 / (重荷・責任などを)〈人など〉‘に'負わせる《+『名』〈人など〉+『with』+『名』(do『ing』)》 / (人などに)〈重荷・責任など〉‘を'負わせる《+『名』+『on』+『名』〈人など〉》
2. 『トルコの』;トルコ人(語)の / トルコ語

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/01/01 21:32:46」(JST)

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For the 2010 film, see Sella Turcica (film).

Sella turcica
Human skull seen from side (parietal bones and temporal bones have been removed). Sella turcica shown in red.
Sella turcica and pituitary gland.
Details
Latin	Sella turcica
Identifiers
Gray's	p.147
Dorlands /Elsevier	s_07/12728179
TA	A02.1.05.006
FMA	54079
Anatomical terms of bone

The sella turcica (Turkish Chair) is a saddle-shaped depression in the body of the sphenoid bone of the human skull and of the skulls of other Hominidae including chimpanzees, orangutans, and gorillas. It serves as a cephalometric landmark.

Structure

The seat of the saddle is known as the hypophyseal fossa, which holds the pituitary gland. The hypophyseal fossa is located in a depression in the body of the sphenoid bone. Located anteriorly to the hypophyseal fossa is the tuberculum sellae.

Completing the formation of the saddle posteriorly is the dorsum sellae, which is continuous with the clivus, inferoposteriorly. The dorsum sellae is terminated laterally by the posterior clinoid processes.

Development

Function

The sella turcica forms a bony seat for the pituitary gland.

Clinical significance

Empty sella syndrome is the condition of a shrunken or flattened pituitary gland.

Since the sella turcica forms a bony caudal border for the pituitary gland, a pituitary tumor usually extends upward in the rostral direction into the suprasellar region. This can result in compression of the optic chiasm, which lies on top of the pituitary, enveloping the pituitary stalk. Compression of the optic chiasm can lead to bitemporal hemianopsia, and, when there is no relevant trauma, this clinical finding is pathognomonic for a pituitary tumor.

Some pituitary adenomas can extend inferiorly, growing downward and invading the sphenoid bone and cavernous sinus. Adenomas greater than 10mm (macroadenomas) can cause remodeling of the underlying sphenoid bone altering the shape of the sella turcica.

Sella turcica is also usually used as a reference point with nasion to establish the base of the skull in cephalometric analysis. This is commonly done prior to orthodontic treatment.

Etymology

Sella turcica is from the Latin words sella, meaning seat, and turcica, meaning Turkish.

See also

This article uses anatomical terminology; for an overview, see anatomical terminology.

• Sphenoidal sinuses
• Empty sella syndrome

Additional images

• Human skull seen from side (parietal bones and temporal bones have been removed). Sella turcica shown in red.

• Sphenoid bone seen from above. Sella turcica shown in red.

• Human skull seen from top (parietal bones have been removed). Sella turcica shown in red.

• Sphenoid bone. Upper surface. (There is no label for "Sella turcica", but "Tuberculum sellae" and "Fossa hypophyseos" are visible near center.)

• Medial wall of left orbit. (Sella turcica labeled in upper right.)

• Lateral wall of nasal cavity, showing ethmoid bone in position.

• Base of skull - sella turcica

• Base of skull - dorsum sellae

• Base of skull - tuberculum sellae and hypophyseal fossa

References

• Marieb, Elaine Nicpon (2004). Human Anatomy & Physiology (6th ed.). Pearson Education. p. 209. ISBN 0-8053-5462-X. 

External links

• Image at Indiana.edu

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English Journal

• [60-year-old patient with saddle nose deformity and Turkish saddle destruction].

• Mussig K, Keuler A, Beckervordersandforth J.SourceAbteilung fur Endokrinologie, Diabetologie, Angiologie, Nephrologie und Klinische Chemie, Medizinische Universitatsklinik Tubingen, Germany. Karsten.Muessig@med.uni-tuebingen.de
• Deutsche medizinische Wochenschrift (1946).Dtsch Med Wochenschr.2010 Sep;135(37):1799-800. Epub 2010 Sep 7.
• PMID 20824602

Japanese Journal

• 男性中部九州人蝶形骨の局所解剖学的研究

• 平本 嘉助
• 九州齒科學會雜誌 : Kyushu-Shika-Gakkai-zasshi 36(5), 767-783, 1982-10-25
• … Although there have been many roentgenologic studies of the turkish saddle, a few topographic anatomical studies of the dried sphenoid bone have been referred to. … The sphenoid bone not only has the round, oval and spinous foramen, but also makes the internal orifice of carotid canal and the turkish saddle. …
• NAID 110003003340

Related Links

• Sella turcica - Wikipedia, the free encyclopedia

[nominative case, singular] meaning Turkey (as in the country not the food), indirectly translating to Turkish chair. ... The sella turcica (literally Turkey Chair - indirectly translating to Turkish Chair) is a saddle-shaped depression in the sphenoid ...

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