ALEC muscles and acronyms Flashcards
Extensor digitorum brevis
Origin: anterior calcaneus
Insertion: basis of proximal phalanges of second, third, and fourth toes
Action: extends second third and fourth toes
Tibialis anterior
Origin: lateral condyle and shaft of tibia, interosseous membrane
Insertion: medial side and plantar surface of medial cuneiform bones and base of first metatarsal bone
Action: dorsiflexes ankle; inverts foot
Extensor Hallucis longest
Origin: anterior fibula and interosseous membrane
Insertion: base of distal phalanx of great toe
Action: extends great toe; Dorsey flexors and supinates foot
Peroneus longus
Origin: lateral proximal 2/3 of shaft of fibula
Insertion: base of first metatarsal and first cuneiform
Action: E version of foot assist plantar flexion of ankle
Peroneus brevis
Origin: lateral distal 2/3 of shaft of fibula
Insertion: base of fifth metatarsal
Action: E version of foot; assist plantar flexion of ankle
Peroneus tertius
Origin; anterior distal shaft of Sevilla
Insertion: base of fifth metatarsal
Action: E version of foot; assess Dorsiflexion of ankle
Quadricep rectus femoris
Origin: AIIS anterior inferior iliac spine
Insertion: patella and tuberosity of tibia, via patellar ligament
Action: extends knee; flexes hip
Vastus medialis
Origin: posterior femur
Insertion: patella and tuberosity of tibia via the patellar ligament
Action extends need
Vastus intermedius
Origin: anterior femur
Insertion: patella and tuberosity of tibia via patellar ligament
Action: extends knee
Vastus lateralis
Origin: posterior femur
Insertion: patella and tuberosity of tibia via the patellar ligament
Action: extends knee
Sartorius
Origin: ASIS anterior superior iliac spine
Insertion: Pes anserious - medial proximal tibial shaft
Action: flexes, abducts, And laterally rotates thigh at hip; medially rotates leg during knee flexion
Tensor fascia Latae
Origin: iliac crest - ASIS to PSIS
Insertion: lateral condyle of tibia via iliotibial tract
Action: flexes, abducts, and medially rotates thigh
Pectineus
Origin: anterior pubis
Insertion: upper medial and posterior shaft of femur
Action: flexes, adducts, and medially rotates thigh at hip
Adductor Magnus
Origin: anterior pubis to ischial tuberosity
Insertion: linea aspera; adductor tubercle of femur
Action: adducts hip; assist in lateral rotation, flexion (anterior fibers), and extension (posterior fibers) of hip
Gracilis
Origin: anterior pubis
Insertion: Pes anserinus - medial proximal tibial shaft
Action: flexes, adducts, and medial rotates thigh at hip; flexes Knee
The only adductor to attach to pubis and tibia
Shares attachment with adductor longus