Muscles of the Foot (Groups, Origin, Insertion, Function)

Content 0:00 Introduction 0:20 Division of the Foot Muscles 00:45 Dorsal Group 1:00 Extensor Digitorum Brevis 1:21 Extensor Hallucis Brevis 1:40 Medial Group 1:49 Adductor Hallucis 2:19 Flexor Hallucis Brevis 2:42 Abductor Hallucis 3:01 Lateral Group - Flexor Digiti Minimi Brevis 3:22 Opponens Digiti Minimi 3:48 Abductor Digiti Minimi 4:10 Middle Group 4:23 Flexor Digitorum Brevis 4:50 Quadratus Plantae 5:11 Plantar Interossei 5:52 Dorsal Interossei 6:22 Lumbricals ------------------------------- 🫀 Join: youtube.comhttps://www.seevid.ir/fa/result?ytch=UCEr7pkSXVsHcBLLBcJAGV-Q/join 📷 Follow my IG: www.instagram.com/taimtalksmed/ 💝 Donation link: www.buymeacoffee.com/taimtalksmed ------------------------------- Muscles of the Foot Dorsal Group [2] Medial Group [3] Lateral Group [3] Middle Group [2] Interossei [2] Lumbricals [1] Dorsal Group [2] Extensors of the toes Innervated by the deep fibular nerve Extensor Digitorum Brevis musculus extensor digitorum brevis O: Calcaneus I: Tendons of extensor digitorum longus (2nd, 3rd, 4th toes) F: Extension of 2nd-4th toe Extensor Hallucis Brevis musculus extensor hallucis brevis O: Calcaneus I: Tendons of extensor hallucis longus F: Extension of big toe Medial Group [3] Innervated by the Tibial Nerve Adductor Hallucis musculus adductor hallucis Oblique Head O: Base of 2nd – 4th metatarsal Cuboid Bone Lateral Cuneiform Transverse Head ○ O: 3rd – 5th Metatarsophalangeal Joints I: Base of the proximal phalanx of the big toe F: Adduction + Flexion of big toe Flexor Hallucis Brevis musculus flexor hallucis brevis O: Medial Cuneiform Long Plantar Ligament I: Base of the proximal phalanx of the big toe F: Flexion of the big toe Abductor Hallucis musculus abductor hallucis O: Calcaneal tuberosity tuber calcanei I: Base of the proximal phalanx of the big toe F: Abduction + Flexion of the big toe Lateral Group [3] Flexor Digiti Minimi Brevis musculus flexor digiti minimi brevis O: Base of the 5th metatarsal Long plantar ligament I: Base of the proximal phalanx of the little toe F: Flexion of little toe Opponens Digiti Minimi musculus opponens digiti minimi O: Base of the 5th metatarsal Long Plantar Ligament I: Lateral Surface of the 5th Metatarsal F: Adduction + Opposition of little toe Abductor Digiti Minimi musculus abductor digiti minimi O: Calcaneal Tuberosity Base of the 5th metatarsal I: Base of the proximal phalanx of the little toe F: Abduction + Flexion of little toe Middle Group [2] Maintain the longitudinal arch of the foot Innervated by the lateral and medial plantar nerves Flexor Digitorum Brevis musculus flexor digitorum brevis O: Calcaneal Tuberosity Plantar Aponeurosis I: Base of the middle phalanx of the 2nd – 5th toes F: Flexion of 2nd – 5th toe at the middle and proximal phalanx Quadratus Plantae musculus quadratus plantae O: Calcaneal Tuberosity Long Plantar Ligament I: Tendons of the flexor digitorum longus F: Participates in flexion of toes Interossei [2] Plantar Interossei Musculi interossei plantares O: Metatarsal bones of 3rd – 5th Toe (Tibial Side) I: Proximal Phalanx of 3rd - 5th toes (Medial Side) F: Adduction of the toes (towards the 2nd toe) Assist with flexion of the toes Dorsal Interossei Musculi interossei dorsales O: Metatarsal bones of 1st – 5th Toe I: Proximal Phalanx of 2nd – 4th toes F: Abduction of the toes (away from 2nd toe) Lumbricals [1] Lumbricals Musculi lumbricales pedis O: Tendons of the flexor digitorum longus I: Base of proximal phalanges of the 2nd-5th toe (medial side) Extensor tendons of the 4 lateral toes F: Flexion of proximal phalanges Extension middle and distal phalanges

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