The occiput is the anatomical term for the posterior (back) portion of the head

Head

In anatomy, the head of an animal is the rostral part that usually comprises the brain, eyes, ears, nose and mouth . Some very simple animals may not have a head, but many bilaterally symmetric forms do....

, in insects

Insect

Insects are a class of living creatures within the arthropods that have a chitinous exoskeleton, a three-part body , three pairs of jointed legs, compound eyes, and two antennae...

 the posterior part of those head capsule.

Clinical significance

Trauma to the occiput can cause a basilar skull fracture

Basilar skull fracture

A basilar skull fracture is a fracture of the base of the skull, typically involving the temporal bone, occipital bone, sphenoid bone, and/or ethmoid bone....

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Prominent occiput is a feature of Trisomy 18 (Edward's Syndrome), along with small jaw, low-set ears, and mental retardation. It is also a feature of Trisomy 9

Trisomy 9

Trisomy 9 is a chromosomal disorder caused by having three copies of chromosome number 9. It can appear with or without mosaicism.-Characteristics:...

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Identification of the location of the fetal occiput is important in obstetrics

Obstetrics

Obstetrics is the medical specialty dealing with the care of all women's reproductive tracts and their children during pregnancy , childbirth and the postnatal period...

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Area of head shaved toward end of 14th century as part of a male hair style. Length of hair was a short bowl crop. The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.