Michaelis diamond
The Michaelis diamond , also Michaelis's diamond or loin diamond , is a surface relief on the lower back of the woman. It is named after the gynecologist Gustav Adolph Michaelis .
anatomy
The corner points of the diamond are
- Above: in the third to fourth lumbar spine (Processus spinosi ossa vertebralia lumbalia III – IV)
- Below: the last coccyx vertebrae (Vertebrae coccygeae III – IV) , this is the upper end of the gluteal groove (crena analis)
- Left and right: bilateral posterior upper pelvic spines (spinae iliacae posteriores superiores) , above which there may be lumbar dimples (fossae lumbales laterales) .
In the case of men, a sacral triangle (Trigonum sacrale) is sometimes used , which corresponds to the lower half of the Michaelis diamond.
With a normal structure of the pelvis, the Michaelis diamond is almost isosceles and corresponds to a square on its tip. Deviations from this shape can be used to identify malpositions of the pelvis, which are important in obstetrics , for example . In a pelvis that is badly deformed by rickets , the upper corner is lower and almost on the line between the two lateral corners.
eroticism
The Michaelis diamond was already highlighted in erotic depictions in ancient times. As a recessed area above the buttocks , which emphasizes the curves, it is sometimes seen as a counterpart to the décolleté above the bust . Not least for this reason, many women decorate this area with tattoos (" ass antlers ").
Individual evidence
- ↑ Michael Schünke: Functional anatomy topography and function of the movement system . Thieme, Stuttgart 2007, p. 133.
- ↑ Christine Geist, Ulrike Harder, Andrea Stiefel (ed.): Midwifery: Textbook for pregnancy, childbirth, childbed and work . 4th edition, Hippokrates, 2007, pp. 141 and 339.
- ↑ Klaus Holldack, Klaus Gahl: Auscultation and percussion, inspection and palpation . 14th edition, Thieme, Stuttgart 2005, p. 230.
- ^ Wilfried Seeburger: Small Medical Lexicon ( Memento from July 6, 2012 in the Internet Archive )