Flexor of hip joints are all except
Psaoas major
Saorius
Gluteus maximus
Rectus femoris
Muscles assisting in flexion are psoas major ,iliacus,saorius ,rectus femoris and pectineus. Gluteus maximus is the chief extensor of the hip joint. Reference: Textbook of anatomy,Abdomen and Lower limb, Vishram Singh, 2nd editon, page no.383
Lower limb