Skeletal Muscles - Leg
Tibialis Anterior
Anterior muscle of the lower leg Dorsiflexion (Standing on heels)
Adductor Longus
Attached to the inner pelvis and femur This muscle adducts the thigh; with the other members of the Adductor group (Brevis and Magnus) has other minor actions such as lateral rotation of the thigh
Vastus Lateralis
Broader/Wider muscle lateral to the rectus femoris Extends the lower leg
Vastus Medialis
Broader/Wider muscle medial to the rectus femoris Extends the lower leg
Biceps Femoris
Bulges slightly on the lateral posterior thigh Flexes the lower leg
Soleus
Deeper "calf muscle" of the posterior lower leg Same action as gastrocnemius
Peroneus Longus
Lateral muscle of the lower leg "Fibularis Longus" Everts the foot (Walking on side of the foot)
Hamstrings Group
Located mostly on the posterior thigh, but not quite as centered As a group, All three flex the lower leg
Semimembranosus
Most medial of the three; seems to be wrapped close to previous muscle by connective tissue Flexes the lower leg
Semitendinosus
Mostly central muscle; Seems to be wrapped close to the following muscle by connective tissue Flexes the lower leg
Vastus Intermedialis
Not easily seen since it is directly behind the Rectus Femoris; In between the other two Vastus Muscles Extends the lower leg
Sartorius
Relatively thin, belt-like muscle that runs diagonally across the thigh from near the hip to inside the knee Flexes and laterally rotates the thigh; Pretzel sitting
Rectus Femoris
Slender, straight muscle in the center of the anterior thigh this muscle may also help to flex the thigh (raising the knee)
Gastrocnemius
Superficial "calf muscle" of the posterior lower leg With the soleus, plantar flexion of the foot (Standing on toes)
Quadriceps Femoris Group
This group is located on the anterior side of the thigh As a group, all four may extend the lower leg