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11 Cards in this Set
- Front
- Back
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Extensor Digitorum Brevis
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O: dorsal surface of calcaneus
I: medial tendon – dorsal surface of base of the proximal phalanx of great toe Other 3 tendons – join tendons of extensor digitorum longus on lateral sides N: deep peroneal A: extension of four lateral toes at MP joint |
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Flexor Digitorum Brevis
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O: tuberosity of calcaneus
I: middle phalanges of four lateral toes N: medial plantar A: flexion of four lateral toes at PIP joint |
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Abductor Hallucis
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O: tuberosity of the calcaneus (medial process)
Plantar aponeurosis I: base of proximal phalanx of great toe on medial side N: medial plantar A: abduction of great toe Flexion of great toe |
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Abductor Digiti Minimi
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O: tuberosity of calcaneus (lateral process)
Plantar aponeurosis I: lateral side of base of proximal phalanx of little toe N: lateral plantar A: abduction of little toe Flexion of little toe |
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Quadratus Plantae
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O: medial and lateral surface of calcaneus and plantar fascia
I: into tendon of flexor digitorum longus N: lateral plantar A: flexion of four lateral toes, adjusting pull of flexor digitorum longus |
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Lumbricals
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O: from tendons of flexor digitorum longus
I: extensor expansion at the base of proximal phalanx of four lateral toes on medial side N: medial plantar – 1st lumbrical lateral plantar – 2-4th lumbricals A: flexion at MP joints of four lateral toes extension at PIP joints of four lateral toes |
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Flexor Hallucis Brevis
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O: plantar surface of cuboid bone
Third cuneiform I: medial and lateral sides of base of proximal phalanx of great toe with sesamoid bones in each tendon. Sesamoids protect tendon of the flexor hallucis longus and brevis from pressure from head of 1st metatarsal bone during standing and walking. N: medial plantar A: flexion of proximal phalanx of great toe at MP joint |
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Adductor Hallucis
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O: bases of metatarsals II-IV & fibrous sheath of peroneus longus tendon (oblique head)
Plantar metatarsophalangeal ligaments of four lateral toes (transverse head) I: lateral side of base of proximal phalanx of great toe N: lateral plantar nerve A: flexion of great toe at MP joint (oblique head) Adduction of great toe (oblique head & transverse head) maintains curvature of transverse arch, draws metatarsal heads together (transverse head) |
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Flexor Digiti Minimi
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O: base of 5th metatarsal bone and sheath of peroneus longus
I: lateral side of base of proximal phalanx of little toe N: lateral plantar A: flexion of proximal phalanx of little toe |
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Plantar Interossei
(3 in number) |
O: medial sides of metatarsals III-V
I: medial side of bases of proximal phalanges and extensor expansion of 3rd, 4th 5th toes N: lateral plantar A: adduction of toes toward axis of second toe Flexion of toes at MP joints Extension of toes at PIP joints via insertion into extensor expansions |
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Dorsal Interossei
(4 in number) |
O: each by two heads from adjacent sides of metatarsal bones
I: lateral sides of bases of proximal phalanges of 3rd and 4th toes and extensor expansion of these toes. Insert into extensor expansion on both medial and lateral sides of second toe N: lateral plantar A: abduction of toes from longitudinal axis of second toe Flexion of toes at MP joints Extension of toes at PIP joints via insertion into extensor expansions |
