Anatomy Muscles 125-150
Terms
undefined, object
copy deck
- Flexor Digiti Minimi Brevis action
- Flexes little toe at metatarsophalangeal joint
- Flexor Digiti Minimi Brevis innervation
- Lateral plantar branch of tibial nerve
- Flexor Hallucis Brevis origin and insertion
- origin: Mostly from cuboid bone; insertion: Via two tendons onto both sides of the base of the proximal phalanx of big toe; each tendon has a sesamoid bone in it
- Adductor Hallucis action
- Helps maintain the transverse arch of foot; weak adductor of big toe
- Adductor Hallucis innervation
- Lateral plantar branch of tibial nerve
- Lumbricals origin and insertion
- origin: From each tendon of flexor digitorum longus; insertion: Extensor expansion on proximal phalanx of toes 2-5, medial side
- Flexor Hallucis Brevis action
- Flexes big toe’s metatarsophalangeal joint
- Flexor Hallucis Brevis innervation
- Medial plantar branch of tibial nerve
- Flexor Accessorius (Quadratus Plantae) origin and insertion
- origin: Medial and lateral sides of calcaneus; insertion: Tendon of flexor digitorum longus in midsole
- Lumbricals action
- By pulling on extensor expansion, flex toes at metatarsophalangeal joints and extend toes at interphalangeal joints
- Lumbricals innervation
- Medial plantar nerve (first lumbrical); Lateral plantar nerve (second to fourth lumbricals)
- Abductor Digiti Minimi origin and insertion
- origin: Tuber calcanei; insertion: Lateral side of base of little toe’s proximal phalanx
- Flexor Accessorius (Quadratus Plantae) action
- Straightens out the oblique pull of flexor digitorum longus
- Flexor Accessorius (Quadratus Plantae) innervation
- Lateral plantar branch of tibial nerve
- Abductor Hallucis origin and insertion
- origin: Tuber calcanei and flexor retinaculum; insertion: Proximal phalanx of big toe, medial side, via sesamoid bone in the tendon of flexor hallucis brevis
- Abductor Digiti Minimi action
- Abducts little toe
- Abductor Digiti Minimi innervation
- Lateral plantar branch of tibial nerve
- Flexor Digitorum Brevis origin and insertion
- origin: Tuber calcanei; insertion: Middle phalanx of toes 2-4
- Abductor Hallucis action
- Abducts big toe
- Abductor Hallucis innervation
- Medial plantar branch of tibial nerve
- Extensor Digitorum Brevis origin and insertion
- origin: Anterior part of calcaneus bone; extensor retinaculum; insertion: Base of proximal phalanx of big toe; extensor expansions on toes 2-4
- Flexor Digitorum Brevis action
- Helps flex toes
- Flexor Digitorum Brevis innervation
- Medial plantar branch of tibial nerve
- Tibialis Posterior origin and insertion
- origin: Extensive origin from superior tibia and fibula and interosseous membrane; insertion: Tendon passes behind medial malleolus and under arch of foot; inserts into several tarsals and metatarsals 2-4
- Extensor Digitorum Brevis action
- Helps extend toes at metatarsophalangeal joints