Muscles And Their Actions Flashcards
Actions of Quadratus Lumborum
Stabilization of 12th rib during inspiration
-Unilateral action-
Lateral flexion of trunk
Elevation of pelvis while thorax and vertebral column are fixed
Actions of Rectus Abdominis
Flexion of trunk
Compression and Support of AV
Actions of External Oblique
Flexion of Trunk Compression and Support of AV -Unilateral actions- Lateral Flexion of Trunk Rotation of trunk to opposite side
Actions of Internal Oblique
Flexion of trunk Compression and Support of AV -Unilateral actions- Lateral flexion of trunk Rotation of trunk to same side
Actions of Transversus Abdominis
Compression and Support of AV
Actions of Pyramidalis
Reinforce lower rectus sheath
Actions of Sartorius
Flexion of femur Abduction of femur Lateral rotation of femur Flexion of knee Medial rotation of tibia while knee is in flexion
Actions of Iliopsoas
Flexion of trunk
Lateral flexion of trunk
Flexion of femur
Actions of Rectus Femoris
Flexion of femur
Extension of knee
Actions of Vastus Lateralis
Extension of knee
Actions of Vastus Medialis
Extension of the knee
Actions of Vastus Intermedius
Extension of knee
Actions of Pectineus
Flexion of femur
Adduction of femur
Medial rotation of femur
Actions of adductor longus
Flexion of femur
Adduction of femur
Actions of adductor brevis
Flexion of femur
Adduction of femur
Actions of Adductor Magnus
Adduction of femur Anterior head: Flexion of femur Medial rotation of femur Posterior head: Extension of femur Lateral rotation of femur
Actions of Gracilis
Adduction of femur
Flexion of femur
Medial rotation of tibia when knee is in flexion
Actions of Gluteus Maximus
Extension of femur
Lateral rotation of extended hip
Actions of Gluteus Medius
Abduction of femur
Prevent contralateral hip drop while walking
Anterior fibers:
Medial rotation of femur
Actions of Gluteus Minimus
Abduction
Medial rotation of femur
Actions of Tensor Fasciae Latae
Flexion of femur Abduction of femur Medial rotation of femur Extension of knee Stability of extended knee while standing and walking
Actions of Piriformis
Lateral rotation of hip joint
Abduction when hip is flexed
Actions of Quadratus Femoris
Lateral rotation of hip joint
Adduction of hip joint
Actions of Obturator Internus
Lateral rotation of hip
Abduction when hip is flexed
Actions of Obturator Externus
Lateral rotation of hip
Adduction of hip joint
Actions of Gemellus Superior
Lateral rotation of hip
Abduction when hip is flexed
Actions of Gemellus Inferior
Lateral rotation of hip
Abduction when hip is flexed
Actions of Biceps Femoris
Flexion of knee
Lateral rotation of tibia when knee is in flexion
Long head:
Extension of femur
Actions of Semimembranosus
Extension of femur
Flexion of knee
Medial rotation of tibia when knee is in flexion
Actions of Semitendinosus
Extension of Femur
Flexion of knee
Medial rotation of tibia while knee is in flexion
Actions of Tibialis Anterior
Dorsiflexion of ankle
Inversion of foot
Actions of Extensor digitorum longus
Dorsiflexion of ankle
Extension of 4 lateral toes at MP joints
Actions of Extensor Hallicus longus
Dorsiflexion of ankle
Extension of great toe at MP and IP joints
Actions of Fibularis Tertius
Dorsiflexion of ankle
Eversion of foot
Actions of Fibularis Longus
Plantarflexion of ankle
Eversion of foot
Actions of Fibularis Brevis
Plantarflexion of ankle
Eversion of foot
Actions of gastrocnemius
Flexion of knee
Plantarflexion of ankle
Actions of Soleus
Plantarflexion of ankle
Actions of Tibialis Posterior
Plantarflexion of ankle
Inversion of foot
Actions of Flexor Digitorum Longus
Plantarflexion of ankle
Flexion of 4 lateral toes at MP and IP joints
Actions of Flexor Hallicus Longus
Plantarflexion of ankle
Flexion of great toe at IP and MP joints
Actions of Plantaris
Flexion of knee
Plantarflexion of ankle
Actions of Popliteus
Lateral rotation of femur to initiate knee flexion OR Medial rotation of tibia
Actions of Extensor Digitorum Brevis
Extension of 4 lateral toes at MP and IP joints