The lambdoid suture (sutura lambdoidea) is a dense, fibrous connective tissue joint that separates the parietal and temporal bones of the skull from the occipital bone. Its name comes from the lambda-like shape this suture makes on the back of the skull. At birth, the bones of the skull do not meet. If certain bones of the skull grow too fast then "premature closure" of the sutures may occur. This can result is skull deformities. If the lambdoid suture closes too soon on one side, the skull will appear twisted and asymmetrical, a condition called "plagiocephaly." Connective tissue is any type of biological tissue with an extensive extracellular matrix and often serves to support, bind together, and protect organs. ... This article is about a joint in zootomical anatomy. ... The parietal bones (os parietale) are bones in the human skull and form, by their union, the sides and roof of the cranium. ... The temporal bones (os temporales) are situated at the sides and base of the skull. ... A Hippopotamuss skull A skull, or cranium, is a bony structure of Craniates which serves as the general framework for a head. ... The occipital bone [Fig. ... Lambda (upper case Λ, lower case λ) is the 11th letter of the Greek alphabet. ... Cephalic disorders are congenital conditions that stem from damage to, or abnormal development of, the budding nervous system. ...

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).