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]


Wikimedia Foundation. 2010.

Игры ⚽ Нужна курсовая?

Look at other dictionaries:

  • Vertex — (Latin: corner; plural vertices or vertexes) may refer to:Mathematics*Vertex (geometry), a corner point of a polygon, polyhedron, tesselation, etc. *Vertex (graph theory), a node in a graph *Vertex (curve), a local extreme point of curvature… …   Wikipedia

  • vertex — ► NOUN (pl. vertices or vertexes) 1) the highest point; the top or apex. 2) Geometry each angular point of a polygon, polyhedron, or other figure. 3) a meeting point of two lines that form an angle. 4) Anatomy the crown of the head. ORIGIN Latin …   English terms dictionary

  • vertex — [ və:tɛks] noun (plural vertices tɪsi:z or vertexes) 1》 the highest point; the top or apex. 2》 Geometry each angular point of a polygon, polyhedron, or other figure.     ↘a meeting point of two lines that form an angle. 3》 Anatomy the crown of… …   English new terms dictionary

  • vertex — /ˈvɜtɛks / (say verteks) noun (plural vertexes or vertices /ˈvɜtəsiz/ (say vertuhseez)) 1. the highest point of something; the apex; the top; the summit. 2. Anatomy, Zoology the crown or top of the head. 3. Astronomy a point in the celest …  

  • Outline of human anatomy — See also: Index of anatomy related articles Human anatomy, a branch of anatomy, is the scientific study of the morphology of the adult human. It is subdivided into gross anatomy and microscopic anatomy. Gross anatomy (also called topographical… …   Wikipedia

  • nervous system, human — ▪ anatomy Introduction       system that conducts stimuli from sensory receptors to the brain and spinal cord and that conducts impulses back to other parts of the body. As with other higher vertebrates, the human nervous system has two main… …   Universalium

  • Skeletal animation — Skeletal animation, sometimes referred to as rigging, is a technique in computer animation, particularly in the animation of vertebrates, in which a character is represented in two parts: a surface representation used to draw the character… …   Wikipedia

  • Insect morphology — Legend of body parts Tagmata : A Head, B Thorax, C Abdomen. 1. antenna 2. ocelli (lower) 3. ocelli (upper) 4. compound eye 5. brain (cerebral ganglia) 6. prothorax …   Wikipedia

  • Vértice (anatomía) — Para otros usos de este término, véase vértice. En la anatomía de los artrópodos y vertebrados, el vértice (vertex) o vértice craneal (TA: vertex) hace alusión a la superficie superior de la cabeza. Contenido 1 Vértice en los seres humanos 1.1… …   Wikipedia Español

  • Cephalic presentation — Classification and external resources Vertex presentation, occiput anterior, William Smellie, 1792 ICD 10 O …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”