In cross-section, the thigh is divided up into three separate compartments, divided byfascia, each containing muscles. These compartments use the femur as an axis and are separated by toughconnective tissue membranes (orsepta). Each of these compartments has its ownblood andnerve supply, and contains a different group ofmuscles.
Because the major muscles of the thigh are the largest muscles of the body, resistance exercises (strength training) of them stimulate blood flow more than any other localized activity.[5]
The arterial supply is by thefemoral artery and theobturator artery. The lymphatic drainage closely follows the arterial supply and drains to the lumbar lymphatic trunks on the corresponding side, which in turn drains to thecisterna chyli.
Runner's knee (patellofemoral pain) is a direct consequence of the kneecap rubbing against the end of the thigh bone (femur). Tight hamstrings and weak thigh muscles, required to stabilize the knee, increase the risk of developing of runner's knee.[9]
Western societies generally tolerate clothing that displays thighs, such asshort shorts andminiskirts.Beachwear and manyathleisure styles often display thighs as well. Professional dress codes may require covering up bare thighs.
ManyIslamic countries disapprove of or prohibit the display of thighs, especially by women.
Strategic covering or display of thighs is used in popular fashion around the world, such asthigh-high boots andzettai ryoiki.
^Bojsen-Møller, Finn; Simonsen, Erik B.; Tranum-Jensen, Jørgen (2001).Bevægeapparatets anatomi [Anatomy of the Locomotive Apparatus] (in Danish) (12th ed.). pp. 239–241.ISBN978-87-628-0307-7.