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surgical joining of two surfaces

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2018/03/31 14:24:54」(JST)

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The lambdoid suture (or lambdoidal suture) is a dense, fibrous connective tissue joint on the posterior aspect of the skull that connects the parietal bones with the occipital bone. It is continuous with the occipitomastoid suture.

Its name comes from its uppercase lambda-like shape.

Clinical significance

At birth, the bones of the skull do not meet. If certain bones of the skull grow too fast, then craniosynostosis (premature closure of the sutures) may occur. This can result in skull deformities. If the lambdoid suture closes too soon on one side, the skull will appear twisted and asymmetrical, a condition called "plagiocephaly". Plagiocephaly refers to the shape and not the condition. The condition is craniosynostosis.

The lambdoidal suture articulates with the occipital bone and parietal bones.

Additional images

Animation. Lambdoid suture shown in red.
Parietal bones (above) and occipital bone (below).
Skull seen from behind. Showing Λ-like shape of the lambdoid suture.
Lambdoid suture seen from above.
Lambdoid suture seen from inside.
Lambdoid suture, medial view. Indicated by yellow line.
Lambdoid suture with wormian bones, seen from behind.

References

"Sagittal suture." Stedman's Medical Dictionary, 27th ed. (2000).
Moore, Keith L., and T.V.N. Persaud. The Developing Human: Clinically Oriented Embryology, 7th ed. (2003).

External links

Anatomy figure: 22:01-03 at Human Anatomy Online, SUNY Downstate Medical Center (Posterior)
Anatomy figure: 22:03-02 at Human Anatomy Online, SUNY Downstate Medical Center (Lateral)
"Anatomy diagram: 34256.000-2". Roche Lexicon - illustrated navigator. Elsevier. Archived from the original on 2014-01-01.

English Journal

Children's cranial lesions from Neolithic.

Shbat A1, Smrcka V.
Prague medical report.Prague Med Rep.2009;110(2):114-9.
In skeletal material from the neolithic settlement at Makotrasy, county Kladno, were analysed two children's craniums (identification numbers Ao 8218 and Ao 4184) with pathological cases. Case 1 (Object 127, Ao 8218) is the individual about 4 to 5 years old. There is oval aperture with the diameter
PMID 19591385

[Contribution to the problem of the persistent sutura frontalis and sutura mendosa (author's transl)].

Schmitt HP.
Virchows Archiv. A, Pathological anatomy and histology.Virchows Arch A Pathol Anat Histol.1975 Oct 30;368(3):213-27.
Investigation of the cranial vaults of 336 adult autopsy cases from two continuous series, one from the Institute of Forensic Medicine of Cologne and the other from the Institute of Pathology of Heidelberg, revealed the incidence of an open sutura frontalis in 15 cases and an open sutura mendosa in
PMID 810953

[On an unusual case of intra-uterine synostosis of the sutura coronalis and sutura lambdoidea: its possible relations with the Holtermuller and Wiedemann syndrome].

Moscatelli P, Gilli G, Perfumo F.
La Clinica pediatrica.Clin Pediatr (Bologna).1968 Dec;50(12):972-8.
PMID 5753559

Japanese Journal

エゾヒグマ頭蓋の形態学的研究 : II. 縫合および軟骨結合の消滅順位について

末永義圓
日本獸醫學雜誌 34(2), 71-78_2, 1972-04-25
… The closing degrees of suturas andsynchondroses were determined by the method employed by FREDERIC (Table I).In both male and female skulls, the obliteration of sutrae and synchondroses wasobserved earlier in the intraoccipital synchondroses, sutura lambdoidea, and S. … sphenosquamosa had been closed later in the maleskulls than in the female.The sutura and synchondrosis which were not closed event in the oldest skull wereS. …
NAID 110003980501

エゾヒグマ頭蓋の形態学的研究 : II. 縫合および軟骨結合の消滅順位について

末永義圓
日本獸醫學雜誌(The Japanese Journal of Veterinary Science) 34(2), 71-78_2, 1972
… The closing degrees of suturas andsynchondroses were determined by the method employed by FREDERIC (Table I).In both male and female skulls, the obliteration of sutrae and synchondroses wasobserved earlier in the intraoccipital synchondroses, sutura lambdoidea, and S. … sphenosquamosa had been closed later in the maleskulls than in the female.The sutura and synchondrosis which were not closed event in the oldest skull wereS. …
NAID 130003480691

後頭骨ニ於ケル二三形態異常ニ就テ

森川政三
耳鼻咽喉科臨床 19(2), 177-183, 1926
… Ihre Entfernung von Asterion, links 8.6 und rechts 8.7 cm, und von Inion 1.8 cm.<BR>Die Laenge der Sutura lambdoidea, links 7.3 und rechts 7.2 cm; … in 12 Faellen in Pars lambdoidea; …
NAID 130001802234

「ラムダ縫合」

Lambdoid suture
	Lambdoid suture (shown in red line)
	Lambdoid suture (labeled at bottom right)
Details
Identifiers
Latin	sutura lambdoidea
TA	A03.1.02.004
FMA	52933
	Anatomical terms of bone [edit on Wikidata]

　　[★]

英: lambdoid suture
ラ: sutura lambdoidea
同: ラムダ状縫合、人字縫合

v t e Fibrous joints of the human skull
Syndesmosis	Pterygospinous ligament Stylohyoid ligament
Sutures	Involving the frontal bone frontoethmoidal suture frontal suture coronal suture occipitomastoid lambdoid sagittal Involving the sphenoid bone sphenoethmoidal with frontal bone with parietal bone sphenosquamosal Involving the Petrous part of the temporal bone sphenopetrosal petrosquamous squamosal Facial: palatomaxillary suture Involving the zygomatic process with sphenoid bone with temporal bone with frontal bone
Mouth	Gomphosis Periodontal fiber Periodontium Dental alveolus Gingiva Cementum

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案内

案内

sutura lambdoidea