Unit 3 Ankle/Foot muscles Flashcards
(30 cards)
Tibialis Anterior
Origin: Lateral condyle of Tibia
Insertion: Plantar surface of 1st metatarsal and medial plantar surface of first cuneiform
Nerve: Deep peroneal
Extensor Digitorum Longus
Origin: Lateral condyle of Tibia
Insertion: Dorsal surface of the middle and distal phalanges on toes 2-5
Nerve: Deep Peroneal
Extensor Hallucis Longus
Origin: Middle of Tibia/interosseous membrane
Insertion: Dorsal surface of distal phalanx on big toe
Nerve:Deep peroneal
Peroneus Tertius
Origin: Lower part of anterior fibula
Insertion:Dorsal base of 5th metatarsal
Nerve: Deep peroneal
Peroneus Longus
Origin: Just below head of fibula on lateral side
Insertion: Plantar surface of 1st cuneiform and base of 1st metatarsal
Nerve: Superficail peroneal
Peroneus Brevis
Origin: Lower 2/3 of fibula on lateral surface
Insertion: Tuberosity of 5th metatarsal
Nerve: Superficial peroneal
Gastrocnemius
Origin: Lateral head-Lateral condyle on posterior femur
Medial head-Medial condyle on posterior femur
Insertion: Posterior surface of calcaneus y means of Achillies tendon
Nerve:Tibial
Soleus
Origin: posterior of proximal fibula and proximal 2/3 of posterior tibia
Insertion: Posterior surface of calcaneus by achillies tendon
Nerve:Tibia
Plantaris
Origin: Lower part of lateral supracondyle on femur
Insertion: Posterior of calcaneus medial to achillies tendon
Nerve: Tibial
Flexor Digitorum Longus
Origin: Posterior surface on tibia just above middle of bone
Insertion:Plantar surfaces of the distal 2nd-5th phalanges
Nerve: Tibial
Flexor Hallucis Longus
Origin: On posterior fibula just above middle of bone
Insertion: Plantar surface of distal phalanx on big toe
Nerve: Tibial
Tibialis Posterior
Origin: Lateral part of posterior tibia into the proximal 2/3 medial surface of fibula
Insterion: Navicular bone, plantar surface of all cuneiforms, bases of the 2nd-4th metatarsals
Nerve: Tibial
Anterior compartment
Tibialis ant., peronus tertius, EDL, EHL
Lateral compartment
Peronus longus & peronus brevis
Superficial posterior compartment
Gastrocnemius, soleus, plantaris
Deep posterior Compartment
FDL, FHL, popliteus, tibialis post.
Dorsiflexors
Prime: Tibialis anterior
secondaries: Peronis tertius, EDL, EHL
Plantarflexors
Prime: Gastrocnemius, soleus, FDL, FHL
Secondaries: Tibialis post., Peronus longus, peronus brevis, plantaris
Inversion
Prime: Tibialis posterior Secondaries: Tibialis ant, FDL, FHL, soleus, EHL
Eversion
Peronus longus, peronus brevis, peronus tertius Secondaries: EDL
Medial Longitudinal Arch
Used in shock absorption
From calcaneus to talus, navicular, all cuneiforms, 3 medial metatarsals
Lateral Longitudinal Arch
Used in balance
From calcaneus to cuboid and 4th &5th metatarsals
Transverse Arch
Adapting foot to ground
Extends acroos fot from 1st metatarsal to 5th metatarsal
Tibial nerve fires what compartment of muscles and what other muscle group?
Intrinsic Muscles
