9 - Ankle and Foot - D3

9 - Ankle and Foot - D3 - ANKLE & FOOT Done By...

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Unformatted text preview: ANKLE & FOOT Done By : Rawan Jaradat ANATOMY There are 26 bones in the foot 7 tarsals , 5 metatarsals, 14 phalanges The tarsals are : Calcaneum ,talus,cuboid ,naviculum and the three cuniforms (medial, intermediate,lateral) ANATOMY ANKLE JOINT The ankle joint is a synovial hinge joint . Articulation : The lateral malleolus of the fibula and the medial malleolus of the tibia along with the inferior surface of the distal tibia articulate with three facets of the talus. These surfaces are covered by cartilage . Movements at the ankle joint are mainly dorsiflexion and plantarflexion The anterior talus is wider than the posterior talus. When the foot is dorsiflexed, the wider part of the superior talus moves into the articulating surfaces of the tibia and fibula, creating a more stable joint than when the foot is plantar flexed. The foot externaly rotates with dorsiflexion and internally rotates with plantarflexion ANATOMY Other joints in the foot : 1- the sub-talar joint. This joint lies between the calcaneum and the talus . 2- the mid-tarsal joint. This joint is really two joints - the joint between the talus and the navicular bone as well as the joint between the calcaneum and the cuboid bone. MUSCLES There is only one muscle on the dorsum of the foot ( digitorum brevis ). The muscles on the planter aspect of the foot are divided into four layers: first layer:abductor hallucis,flexor digitorum brevis,abductor digiti minimi. second layer:quadratus plantae,lumbricalis,flexor digitorum longus tendon,flexor hallucis longus tendon. third layer: flexor hallucis brevis,adductor hallucis,flexor digiti minimi brevis. Forth layer: interossei , peroneus longus tendon,tibialis posterior tendon ANATOMY Blood supply of the foot is from : 1-anterior tibial artery which gives dorsalis pedis artery. 2-posterior tibial which gives the medial and lateral plantar arteries....
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This note was uploaded on 12/24/2011 for the course STEP 1 taught by Professor Dr.aslam during the Fall '11 term at Montgomery College.

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9 - Ankle and Foot - D3 - ANKLE & FOOT Done By...

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