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Low. Extremity Musc.

Hip, Knee, Ankle & Foot Muscles

QuestionAnswer
Iliopsoas Prime Mover: Hip Flexion Action(s): Hip Flexion
Sartorius Prime Mover: Hip External Rotation Action(s): Hip Flexion/Abduction/External Rotation; Knee Flexion
Adductor Magnus Prime Mover: Hip Adduction Action(s): Hip Adduction/External Rotation
Adductor Longus Prime Mover: None Action(s): Hip Adduction/Flexion/External Rotation
Gluteus Maximus Prime Mover: Hip Extension Action(s): Hip Extension (esp. with knee flexed)/External Rotation
Gluteus Medius Prime Mover: Hip Abduction Action(s): Hip Abduction/Internal Rotation
Gluteus Minimus Prime Mover: Hip Internal Rotation Action(s): Hip Abduction/Internal Rotation
Quadriceps Prime Mover: Knee Extension Muscles that make up Quad: Rectus Femoris, Vastus Lateralis, Intermedius and Medialis
Rectus Femoris Prime Mover: Knee Extension Action(s): Hip Flexion (w/ Straight Leg Raising), Knee Extension
Vastus Lateralis, Intermedius and Medialis Prime Mover: Knee Extension Action(s): Knee Extension (Medialis- last 10-15 degrees)
Hamstrings Prime Mover: Knee Flexion Muscles that make up Ham: Biceps Femoris, Semitendinosis, Semimembranosis
Biceps Femoris Prime Mover: Knee Flexion Action(s): Knee Flexion
Semitendinosis, Semimembranosis Prime Mover: Knee Flexion Action(s): Knee Flexion, Hip Extension (w/ knee extended)
Anterior Tibialis Prime Mover: Ankle Dorsiflexion Action(s): Ankle Dorsiflexion/Inversion (antagonist of Peroneus Longus, Brevis & Tertius, co-synergist of Peroneus Tertius)
Peroneus Longus Prime Mover: Ankle Eversion Action(s): Ankle Plantar Flexion/Eversion (antagonist of Anterior Tibialis, co-synergist of Peroneus Tertius)
Peroneus Brevis Prime Mover: None Action(s): Ankle Plantar Flexion/Eversion (antagonist of Anterior Tibialis, co-synergist of Peroneus Tertius)
Peroneus Tertius Prime Mover: None Action(s): Ankle Dorsiflexion/Eversion (antagonist of Anterior Tibialis, co-synergist of Anterior Tibialis, Peroneus Longus & Brevis)
Posterior Tibialis Prime Mover: Ankle Inversion Action(s): Ankle Plantar Flexion/Inversion
Gastrocnemius "Calf Muscle" Prime Mover: Ankle Plantar Flexion Action(s): Knee Flexion, Ankle Plantar Flexion
Soleus Prime Mover: None Action(s): Ankle Plantar Flexion
Flexor Digitorum Longus Action(s): Flexion of 4 lesser toes, Ankle Plantar Flexion/Inversion
Flexor Hallicis Longus Action(s): Flexion of great toe, Ankle Plantar Flexion/Inversion
Extensor Digitorum Longus Action(s): Extension of 4 lesser toes, Ankle Dorsiflexion
Extensor Digitorum Brevis Action(s): Extension of 4 lesser toes
Extensor Hallicis Longus Action(s): Extension of great toe, Ankle Dorsiflexion
"Tom, Dick & Harry" Posterior Tibialis, Flexor Digitorum Longus, Flexor Hallicis Longus: All Plantar Flexors & Invertors
Hip Flexion Prime Mover: Iliopsoas Other(s): Adductor Longus, Rectus Femoris, Sartorius
Hip Extension Prime Mover: Gluteus Maximus Other(s): Semitendinosis, Semimembranosis
Hip Abduction Prime Mover: Gluteus Medius Other(s): Gluteus Minimus, Sartorius
Hip Adduction Prime Mover: Adductor Magnus Other(s): Adductor Longus
Hip Internal Rotation Prime Mover: Gluteus Minimus Other(s): Gluteus Medius
Hip External Rotation Prime Mover: Sartorius Other(s): Adductor Magnus, Adductor Longus, Gluteus Maximus
Knee Flexion Prime Mover: Hamstrings (Biceps Femoris, Semitendinosis, Semimembranosis) Other(s): Sartorius, Gastrocnemius
Knee Extension Prime Mover: Quadriceps (Rectus Femoris, Vastus Lateralis, Intermedius, Medialis) Other(s): None
Dorsiflexion Prime Mover: Anterior Tibialis Other(s): Peroneus Tertius, Extensor Digitorum Longus, Extensor Hallicis Longus
Plantar Flexion Prime Mover: Gastrocnemius Other(s): Peroneus Long, Peroneus Brevis, Posterior Tibialis, Soleus, Flexor Digitorum Longus, Flexor Hallicis Longus
Inversion Prime Mover: Posterior Tibialis Other(s): Anterior Tibialis, Flexor Digitorum Longus, Flexor Hallicis Longus
Eversion Prime Mover: Peroneus Longus Other(s): Peroneus Brevis, Peroneus Tertius
Created by: bfwiley315