Anatomical feature on the posterior of some primates
This article is about buttocks from an exterior,cultural, andlayman's point-of-view. For a more technical treatment of the corresponding musculature, seeGluteus maximus. For the anatomical description of the hip, seeHip."Hiney" redirects here. For other uses, seeHiney (surname).
Buttocks
Buttocks of a human female (upper) and a human male (lower)
In many cultures, the buttocks play a role insexual attraction.[2] Many cultures have also used the buttocks as a primary target forcorporal punishment,[3] as the buttocks' layer of subcutaneous fat offers protection against injury while still allowing for the infliction of pain.
Structure
The buttocks are formed by the masses of the gluteal muscles or "glutes" (thegluteus maximus muscle and thegluteus medius muscle) superimposed by a layer offat. The superior aspect of the buttock ends at theiliac crest, and the lower aspect is outlined by thehorizontal gluteal crease. The gluteus maximus has two insertion points:1⁄3 superior portion of thelinea aspera of thefemur, and the superior portion of the iliotibial tractus. The masses of the gluteus maximus muscle are separated by an intermediateintergluteal cleft or "crack" in which theanus is situated.
The analogous anatomical structures known asischial callosities allow primates to sit upright without resting their weight on their feet asfour-legged animals do. The pads enable the monkeys to sleep sitting upright on thin branches, beyond reach of predators, without falling. Humans do not possess ischial callosities due to thegluteal muscles being large enough to provide the same cushioning.[4] Females of certain species ofbaboon have red callosities that blush to attract males. In the case of humans, females tend to have proportionally wider and thicker buttocks due to highersubcutaneous fat and proportionally widerhips. In humans they also have a role in propelling the body in a forward motion and aiding bowel movement.[5][6]
Some baboons and allgibbons, though otherwisefur-covered, have characteristic nakedischial callosities on their rears. While human children generally have smooth buttocks, mature males and females have varying degrees of hair growth, as on other parts of their body. Females may have hair growth in the gluteal cleft (including around the anus), sometimes extending laterally onto the lower aspect of the cheeks. Males may have hair growth over some or all of the buttocks.
TheLatin name for the buttocks isnates (English pronunciation/ˈneɪtiːz/NAY-teez,[7] classical pronunciationnătes[ˈnateːs][8]) which is plural; the singular,natis (buttock), is rarely used. There are many colloquial terms for them.
Gallery of art
Prominent, muscular buttocks are a standard feature of athletic and military artwork fromAncient Greece, as demonstrated by this statue of a boxer.British Museum (c. 460 BC)
Japanese man in a traditional swimwearFundoshi-rokushaku
Posterior view of human female and male to show the comparison of their buttocks
Some female clothing, such as thebikini orpanties, show part of the female buttocks (woman on left).Thongs, in particular, leave almost all of the buttocks exposed (woman on right). Photo is of a beach inHolland, 1999.
^Norman Eizenberg et al.,General Anatomy: Principles and Applications (2008), p. 17.
^Hennig, Jean-Luc (1995).The rear view: A brief and elegant history of bottoms through the ages. London: Souvenir.ISBN0-285-63303-1.
^"Police".The Times. London. 22 March 1894.Archived from the original on 1 July 2014. Retrieved5 December 2010.Mr. Curtis Bennett deprecated caning on the hands and boxing the ears, and said they were exceedingly dangerous forms of punishment. Nature provided a special place for boys to be punished upon and it should be used.
%2c_Winning_at_the_ancient_Games%2c_British_Museum_(7642744838).jpg)
.jpg)
.jpg)
