Leg & Foot Flashcards
Muscle Attachments (26 cards)
Tibialis Anterior
O - Lateral condyle of tibia, upper-half of tibial shaft, and interosseous membrane
I - Medial and inferior surfaces of medial cuneiform and base of first metatarsal bone
Extensor Digitorum Longus
O - Lateral condyle of tibia, superior 3/4 surface of fibula, and interosseus membrane
I - Middle and distal phalanges of toes 2-5
Fibularis (Peroneus) Tertius
O - Inferior-third of anterior surface of fibula, and interosseus membrane
I - Dorsum of base of fifth metatarsal
Extensor Hallucis Longus
O - Anteromedial fibula shaft, and interosseus membrane
I - Dorsal aspect of base of distal phalanx of great toe
Fibularis (Peroneus) Longus
O - Head and superior two-thirds of lateral surface of fibula
I - Base of first metatarsal, and medial cuneiform
Fibularis (Peroneus) Brevis
O - Inferior two-thirds of lateral surface of fibula
I - Dorsal surface of tuberosity on lateral side of base of 5th metatarsal
Gastrocnemius
O - (Lateral Head) Lateral aspect of lateral condyle of femur; (Medial Head) Popliteal surface of femur, and superior to medial condyle
I - Posterior surface of calcaneus via calcaneal tendon
Soleus
O - Soleal line and middle-third of medial border of tibia, posterior aspect of head and superior-quarter of posterior surface of fibula, and tendinous arch coming from between bony attachments
I - Posterior surface of calcaneus via calcaneal tendon
Plantaris
O - Inferior end of lateral supracondylar line of femur, and oblique popliteal ligament
I - Posterior surface of calcaneus via calcaneal tendon
Popliteus
O - Lateral surface of lateral condyle of femur, and lateral meniscus
I - Posterior surface of tibia (proximal, or superior to soleal line)
Flexor Digitorum Longus
O - Medial part of posterior surface of tibia inferior to soleal line, and fibula in proximity to that region
I - Base of distal phalanges of toes 2-5
Flexor Hallucis Longus
O - Inferior two-thirds of posterior surface of fibula, and inferior portion of interosseus membrane
I - Base of distal phalanx of great toe (hallux)
Tibialis Posterior
O - Posterior surface (inferior to soleal line) of tibia, posterior surface of fibula, and interosseus membrane
I - Tuberosities of navicular, cuneiforms, cuboid, and sustentaculum tali of calcaneus, and bases of 2nd-4th metatarsal
Extensor Digitorum Brevis
O - Calcaneus (floor of tarsal sinus), interosseus talocalcaneal ligament, stem of inferior extensor retinaculum
I - Long extensor tendons of toes 2-4
Flexor Digitorum Brevis
O - Medial tubercle of tuberosity of calcaneus, plantar aponeurosis, and intermuscular septa
I - Both sides of middle phalanges of toes 2-5
Abductor Hallucis
O - Medial tubercle of tuberosity of calcaneus, flexor retinaculum, and plantar aponeurosis
I - Medial side of base of proximal phalanx of great toe
Abductor Digiti Minimi
O - Medial and lateral tubercles of tuberosity of calcaneus, plantar aponeurosis, and intermuscular septa
I - Lateral side of base of proximal phalanx of 5th digit
Quadratus Plantae (Flexor Accessorius)
O - Medial and lateral sides of plantar surface of calcaneus
I - Posterolateral margin of flexor digitorum longus tendon
Lumbricals
O - From each tendon of flexor digitorum longus
I - Medial side of extensor expansion on proximal phalanx of toes 2-5
Flexor Hallucis Brevis
O - Plantar surfaces of cuboid and lateral cuneiforms
I - Both sides of base of proximal phalanx of great toe
Adductor Hallucis
O - Bases of metatarsals 2-4, from fibularis longus tendon sheath (oblique head), and from plantar ligaments across metatarsophalangeal joints (transverse head)
I - Lateral side on base of proximal phalanx of great toe
Flexor Digiti Minimi Brevis
O - Base of fifth metatarsal
I - Base of proximal phalanx of fifth digit
Plantar Interossei
O - Bases and medial sides of metatarsals 3-5
I - Medial sides of bases of phalanges of 3rd-5th digits
Dorsal Interossei
O - Adjacent sides of metatarsals 1-5
I - (First Muscle) Medial side of proximal phalanx of 2nd digit; (2nd-4th Muscles) Lateral sides of 2nd-4th digits
