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Ankle and Foot Joint. Anatomy and Physiology of Human Movement 420:050. Ankle and Foot Joints. Complex 26 bones ~ 30 joints > 20 muscles Simplification Tarsals Extrinsic muscles only 9 joints. Objectives. 1. Be able to identify the bones of the ankle and foot joints.
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Ankle and Foot Joint Anatomy and Physiology of Human Movement 420:050
Ankle and Foot Joints • Complex • 26 bones • ~ 30 joints • > 20 muscles • Simplification • Tarsals • Extrinsic muscles only • 9 joints
Objectives • 1. Be able to identify the bones of the ankle and foot joints. • 2. Be able to identify the joints of the ankle and foot • 3. Be able to identify the landmarks of the lower tibia and lower fibula • 4. Be able to identify and describe the movements of the ankle and foot joints • 5. Be able to identify and describe the general attachments (distal/proximal), and movements of the ankle joint muscles
Ankle and Foot Joint Bones • Tibia • Fibula • Talus • Calcaneus • Tarsals (5) • Metatarsals (5) • Proximal phalanges (5) • Middle phalanges (4) • Distal phalanges (5)
Calcaneus Talus Tibia Tarsals Fibula Metatarsals Interosseus membrane
Proximal phalanges Middle phalanges Distal phalanges
Objectives • 1. Be able to identify the bones of the ankle and foot joints • 2. Be able to identify the joints of the ankle and foot • 3. Be able to identify the landmarks of the lower tibia and lower fibula • 4. Be able to identify and describe the movements of the ankle and foot joints • 5. Be able to identify and describe the general attachments (distal/proximal), and movements of the ankle joint muscles
Talocrural joint (ankle) Uniaxial hinge Subtalar joint Gliding/nonaxial Transverse tarsal joints Gliding/nonaxial Intertarsal joints Gliding/nonaxial Tarsometatarsal joints Gliding/nonaxial Metatarsophalangeal joints Biaxial ball and socket Proximal interphalangeal joints Little toes – Uniaxial hinge Distal interphalangeal joints Little toes – Uniaxial hinge Interphalangeal joint Big toe – Uniaxial hinge Ankle and Foot Joints
Talocrural joint Plantar/dorsiflexion Sagittal, ML axis Subtalar joint Eversion/inversion Frontal plane AP axis
Transverse tarsal joints Intertarsal joints Tarsometatarsal joints Metatarsophalangeal joints Proximal interphalangeal joints Distal interphalangeal joints Interphalangeal joint
Objectives • 1. Be able to identify the bones of the ankle and foot joints • 2. Be able to identify the joints of the ankle and foot • 3. Be able to identify the landmarks of the lower tibia and lower fibula • 4. Be able to identify and describe the movements of the ankle and foot joints • 5. Be able to identify and describe the general attachments (distal/proximal), and movements of the ankle joint muscles
Bony Landmarks • Lateral malleolus • Medial malleolus
Objectives • 1. Be able to identify the bones of the ankle and foot joints • 2. Be able to identify the joints of the ankle and foot • 3. Be able to identify the landmarks of the lower tibia and lower fibula • 4. Be able to identify and describe the movements of the ankle and foot joints • 5. Be able to identify and describe the general attachments (distal/proximal), and movements of the ankle joint muscles
Ankle and Foot Joint Movements • Flexion/Extension • Talocrural joint (plantar/dorsiflexion) • Proximal interphalangeal joints • Distal interphalangeal joints • Interphalangeal joint • Metatarsophalangeal joints (Biaxial B+S) • Inversion/Eversion • Subtalar joint • Transverse tarsal joints • Abduction/Adduction/Circumduction • Metatarsophalangeal joints (Biaxial B+S)