Muscle and Muscle Actions Flashcards
What is the primary function of the anterior tibialis?
Dorsiflexion of ankle, inversion of foot
What is the primary function of the Gastrocnemius?
Plantar flexion of ankle, flexion of knee
What is the primary function of the soleus?
Plantar flexion at ankle
What is the primary function of the Plantaris?
Flexion of knee, plantar flexion of the ankle.
What is the primary function of the rectus femoris relating to the knee??
Extension (most effective when the hip is extended)
What is the primary function of the Vastus lateralis, intermedius, and medialis?
Extension of the knee
What is the primary function of the Biceps femoris relating to the knee?
Flexion and external rotation
What is the primary function of the Semitendinosus relating to the knee?
Flexion and internal rotation.
What is the primary function of the Semimembranosus relating to the knee?
Flexion and internal rotation
What is the primary function of the Gracilis relating to the knee?
Flexion
What is the primary function of the Sartorius?
Flexion and external rotation of the hip, flexion of the knee.
What is the primary function of the Rectus femoris relating to the hip?
Flexion
What is the primary function of the Gluteus maximus relating to the hip?
Extension and external rotation
Superior Fibers - Abduction
What is the primary function of the biceps femoris relating to the hip?
Extension, abduction, and slight external rotation
What is the primary function of the Semitendinosus relating to the hip?
Extension, adduction, and slight internal rotation.
What is the primary function of the Gluteus medius and minimus relating to the hip?
Abduction
Anterior fibers - Internal rotation
Posterior fibers - external rotation
What is the primary function of the Tensor fasciae latae relating to the hip?
Flexion, abduction, and internal rotation
What is the primary function of the Gracilis relating to the hip?
Adduction
What is the primary function of the rectus abdominis relating to the spine?
Flexion and lateral flexion of the trunk.
What is the primary function of the external oblique relating to the spine?
Contralateral rotation, lateral flexion, and forward flexion.
What is the primary function of the internal oblique relating to the spine?
Ipsilateral rotation, lateral flexion and forward flexion.
What are the hamstring muscles?
Semitendinosus
Semimembranosus
Biceps Femoris
What muscles are considered hip flexors?
Iliacus
Psoas
Pectineus
Rectus femoris
Sartorius.
What muscles are considered hip extensors?
Gluteus Maximus
Hamstrings
What muscles are considered the quads?
Rectus femoris
Vastus lateralis
Vastus intermedius
Vastus medialis.
What muscles are considered part of the obliques?
External Obliques
Internal Obliques
What is the Plantaris?
Long narrow muscle in the calf that works with the achilles in flexing the knee and plantar flexion of the ankle.
What are the Vasus lateralis, intermedius, and medialis?
Muscles located in the thigh, part of the quadriceps muscle group.
What is the Semimembranosus?
Long muscle in the thigh, one of the hamstrings.
What is the Tensor Fasciae Latae?
Muscle in the thigh, helps stabilize hip and knee.
What is the transverse abdominus?
The deepest muscle of the abs. Compresses the abdomen. Used in prone plank, abdominal bracing.
What is the rectus abdominus?
An ab muscle, the “6 pack”. Flexion and lateral flexion of the trunk.
What is the Erector spinae?
Muscles that straighten and rotate the back.
What is the Latissimus dorsi?
Large muscle in the back that helps control shoulder movement.
What is the Palmaris longus?
A flexor muscle of the forearm.
