ata e ▁shares ▁its ▁origin ▁with ▁the ▁gl ute us ▁maxim us ▁at ▁the ▁il ium ▁and ▁also ▁shares ▁the ▁insert ion ▁at ▁the ▁il iot ib ial ▁tract . ▁ ▁Ad duct or ▁group ▁ ▁The ▁ad duct or ▁bre vis , ▁ad duct or ▁long us , ▁ad duct or ▁magn us , ▁p ect ine us , ▁and ▁g rac ilis ▁make ▁up ▁the ▁ad duct or ▁group . ▁The ▁ad duct ors ▁all ▁origin ate ▁on ▁the ▁pub is ▁and ▁insert ▁on ▁the ▁med ial , ▁posterior ▁surface ▁of ▁the ▁fem ur , ▁with ▁the ▁exception ▁of ▁the ▁g rac ilis ▁which ▁inser ts ▁just ▁below ▁the ▁med ial ▁cond yle ▁of ▁the ▁tib ia . ▁ ▁I li op so as ▁group ▁ ▁The ▁il ia cus ▁and ▁p so as ▁major ▁compr ise ▁the ▁il iop so as ▁group . ▁The ▁p so as ▁major ▁is ▁a ▁large ▁mus cle ▁that ▁runs ▁from ▁the ▁bodies ▁and ▁disc ▁of ▁the ▁L 1 ▁to ▁L 5 ▁verte bra e , ▁joins ▁with ▁the ▁il ia cus ▁via ▁its ▁tend on , ▁and ▁connect s ▁to ▁the ▁less er ▁tro chan ter ▁of ▁the ▁fem ur . ▁The ▁il ia cus ▁origin ates ▁on ▁the ▁il iac ▁f ossa ▁of ▁the ▁il ium . ▁T ogether ▁these ▁mus cles ▁are ▁commonly ▁referred ▁to ▁as ▁the ▁" ili op so as ". ▁ ▁Later al ▁rot ator ▁group ▁ ▁This ▁group ▁consists ▁of ▁the ▁extern us ▁and ▁intern us ▁obt ur