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Muscles That Move the Leg (Table 8.13, p.198). These muscles connect the tibia or fibula to the femur or pelvic girdle. The muscles either flex or extend the knee. The muscles include the hamstring group and the quadriceps femoris group. . Muscles That Move the Leg, cont….
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Muscles That Move the Leg (Table 8.13, p.198) • These muscles connect the tibia or fibula to the femur or pelvic girdle. • The muscles either flex or extend the knee. • The muscles include the hamstring group and the quadriceps femoris group.
Muscles That Move the Leg, cont…. • Flexors (aka, ???): • Biceps femoris • Semitendinosus • Semimembranosus • Sartorius • Extensors: • Quadriceps femoris group – 4 parts: • Rectus femoris • Vastuslateralis • Vastusmedialis • Vastusintermedius
Muscles That Move the Ankle, Foot, and Toes (Table 8.14, p.199) • Attach the femur, tibia, and fibula to the bones of the foot • Responsible for dorsiflexion, plantar flexion, inversion, and eversion, and are grouped by these catagories: • Dorsal flexors • Plantar flexors • Invertors • Evertors
Muscles That Move the Ankle, Foot, and Toes, continued….. • Dorsal flexors: • Tibialis anterior • Peroneus (fibularis) tertius • Extensor digitorumlongus • Plantar flexors: • Gastrocnemius • Soleus • Flexor digitorumlongus • Invertor: tibialis posterior • Evertor: peroneus (fibularis) longus