▁reconst ruction . ▁Su fficient ▁gra ft ▁size ▁could ▁typically ▁be ▁obtained ▁using ▁either ▁a ▁sem it end inos us / g rac ilis ▁tend on ▁double - bundle ▁technique , ▁or ▁a ▁quad ru ple - bundle ▁technique ▁using ▁a ▁single ▁tend on . ▁ ▁Add itional ▁images ▁ ▁See ▁also ▁ ▁Sem im emb ran os us ▁B ice ps ▁fem oris ▁ ▁References ▁ ▁External ▁links ▁ ▁P TC ent ral ▁ ▁Category : H ip ▁extens ors ▁Category : K ne e ▁flex ors ▁Category : K ne e ▁med ial ▁rot ators ▁Category : Th igh ▁mus cles ▁Category : Post er ior ▁compart ment ▁of ▁th igh ▁Category : Mus cles ▁of ▁the ▁lower ▁lim b <0x0A> </s> ▁The ▁ 2 0 2 1 ▁FI A ▁Formula ▁One ▁World ▁Championship ▁is ▁a ▁planned ▁motor ▁racing ▁championship ▁for ▁Formula ▁One ▁cars ▁which ▁will ▁be ▁the ▁ 7 2 nd ▁running ▁of ▁the ▁Formula ▁One ▁World ▁Championship . ▁It ▁is ▁recogn ised ▁by ▁the ▁F édération ▁Intern ationale ▁de ▁l ' Autom obile ▁( FI A ), ▁the ▁gover ning ▁body ▁of ▁international ▁mot ors port , ▁as ▁the ▁highest ▁class ▁of ▁competition ▁for ▁open - w heel ▁racing ▁cars . ▁The ▁championship ▁is ▁due ▁to ▁be ▁cont ested ▁over ▁a ▁series ▁of ▁races , ▁or ▁Gr ands ▁Prix , ▁held ▁around ▁the ▁world . ▁D ri vers ▁and ▁teams ▁are ▁scheduled ▁to ▁comp ete ▁for ▁the ▁titles ▁of ▁World ▁D ri vers ' ▁Champion ▁and ▁World ▁Con struct