Week 10: OIA Lower Extremity Flashcards
Origin of Tibialis Posterior
Proximal, posterior shaft tibia and fibula, interosseous membrane
PP - TF
T for tibia F for fibula
Insertion of Tibialis Posterior
5 tarsal bones, base 2-4 met
Action of Tibialis posterior
plantarflexion and inversion
Origin of Flexor Hallucis Longus
Middle 1/2 posterior fibula
Middel 1/2 PF
Hall = half
Insertion of flexor Hallucis Longus
Distal Phalanx 1st toe
Action of flexor Hallucis Longus
Flexion of 1st toe, invert foot and assist in plantar flexion
Origin of Flexor Digitorum Longus
Middle, posterior tibia
T in digit = T in tibia
Back side of tibia
Insertion of flexor digitorum longus
Distal phalanx 2-5th toes,
Action of flexor digitorum longus
Flex 2-5 toe, invert foot, assist in plantar flexion
Origin of extensor digitorum brevis
Dorsal surface calcaneus
Digitorum (D) = D in dorsal
D-E (ABCDE)
Insertion of Extensor digitorum brevis
2-4 toe via EDL tendon
EDB = EDL
ED = ED
action of Extensor digitorum brevis
Extend 2-4th toes
Origin of flexor digitorum brevis
Medial calcaneus; plantar aponeurosis
M at the end of digitorum = M in medial
Insertion of flexor digitorum brevis
Middle phalange 2-5th toe
Action of flexor digitorum brevis
Flexion and middle phalange 2-5 toe
Origin of extensor hallucis brevis
Dorsal surface of calcaneus
Insertion of extensor hallucis brevis
Proximal phalanx 1st toe
Action of extensor hallucis brevis
Extension of 1st toe
Origin of flexor hallucis brevis
Plantar surface cuboid, lateral cuneiform
Plan cube and lateral cuneiform
Insertion of flexor hallucis brevis
Med, lat surface base proximal 1st toe
FHB = ML-1
Action of flexor hallucis brevis
Flexion of 1st toe
Origin of abductor Hallucis
Medial calcaneus, plantar aponeurosis
Insertion of abductor Hallucis
Proximal phalanx 1st toe, medial sesamoid bone
1st toe and medial sesamoid
Action of abductor hallucis
Abductor 1st toe, assist flexion of 1st toe
Origin of adductor hallucis
Oblique H: base 2-4 toe
Transverse H: plantar ligament, 3-5 MTP joint
O: 2-4
T: 3-5 MTP
Insertion of adductor Hallucis
Lateral surface base proximal phalanx 1st toe
Action of adductor Hallucis
Adduction, assist flexion 1st toe, assist maintain arch
Adds flexion and assistance
Origin of abductor digiti minimi
Lateral calcaneus; plantar aponeurosis
Insertion of abductor digiti minimi
Proximal phalanx 5th
Action of abductor digiti minimi
flexion of 5th, assist in abduction of 5th
Origin of flexor digiti minimi
base 5th metacarpal
Insertion of flexor digiti minimi
Base proximal phalanx 5th toe
Action of flexor digiti minimi
Flexion of 5th
Origin of Quadratus plantae
medial and lateral sides plantar surface calcaneus
MLC
Insertion of Quadratus plantae
Posterior, lateral aspect FDL tendon
Action of Quadratus Plantae
Assist FD in 2-5 flexion
Origin of Dorsal Interossei
Adjacent surface of all metacarpals
Insertion of dorsal interossei
1st: medial, proximal of 2nd
2-4: lateral, proximal 2-4th
Action of dorsal interossei
Abduction and flexion 2-4th
Abd(minus) flexion
Origin Plantar interossei
Medial surface 3-5th metacarpal
Insertion of plantar interossei
Medial surface proximal 3-5th toe
Action of plantar interossei
Adduction and flexion 3-5th
Origin of lumbricals
Tendon FDL
Insertion of lumbricals
Base proximal 2-5th toes, EDL tendon, dorsal surface
Action of lumbricals
Flexion proximal 2-5 MTP, extend middle and distal phalanx 2-5 PIP and DIP