Vertex (anatomy)

Vertex (anatomy)

In arthropod and vertebrate anatomy, the vertex (or "cranial vertex") refers to the upper surface of the head.

In humans, the vertex is formed by four bones of the skull: the frontal bone, the two parietal bones, and the occipital bone. These bones are connected by the coronal suture between the frontal and parietal bones, the sagittal suture between the two parietal bones, and the lambdoid suture between the parietal and occipital bones. "Vertex baldness" refers to a form of male pattern baldness in which the baldness is limited to the vertex, resembling a tonsure. In childbirth, "vertex birth" refers to the common head-first presentation of the baby, as opposed to the buttocks-first position of a breech birth.

In entomology, the color, shape and structures arising from an insect's vertex are commonly used in identifying species.

References

*cite book
url = http://books.google.com/books?id=PxyXYkP5xY8C&printsec=toc&dq=vertex+skull+anatomy#PPA203,M1
title = Anatomy, Descriptive and Surgical
author = Gray, Henry; Keen, William Williams
year = 1887
pages = page 203
publisher = Lea brothers & co.

*cite journal
title = Nomenclature proposal for the zones and landmarks of the balding scalp
author = Beehner, Michael L., M.D.
journal = Dermatologic Surgery
volume = 27
pages = 385–390
year = 2001
doi = 10.1046/j.1524-4725.2001.00289.x

* [http://www.roberth.u-net.com/glossary.htm#VV Glossary of veterinary entomology: V]


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