Leg & Foot Muscles – Trail Guide To The Body(Page 359) – Leg & Foot Muscle Chart Study Summary

​Leg & Foot Muscle Chart:​

​Trail Guide Leg & foot: page 359​



​Muscle:​ ​Origin:​ ​Insertion:​ ​Action:​ ​Innervation:​

​Gastrocnemius​ -​ Condyles of the​ -​ ​Calcaneus​​via​ -​ ​Flex​​the knee​ ​-Tibial S​​1​,​​2​
​femur, posterior​ ​calcaneal tendon​ ​(tibiofemoral​
​surfaces​ ​joint)​
(​ Posterior​
​Compartment)​ -​ ​Plantar flex​
​the ankle​
(​ Superficial​ ​(talocrural joint)​
​Group)​


​Soleus​ -​ Soleal line;​ -​ ​Calcaneus​​via​ -​ ​Plantar flex​ ​-Tibial L5, S​​1​,​​2​
​proximal,​ ​calcaneal tendon​ ​the ankle​
(​ Posterior​ ​posterior​ ​(talocrural joint)​
​Compartment)​ ​surface of tibia;​

(​ Superficial​ -​ posterior aspect​
​Group)​ ​of head of fibula​


​Plantaris​ -​ ​Lateral​ -​ ​Calcaneus​​via​ -​ ​Weak plantar​ -​ Tibial L4,​​5​, S​​1​,​
​supracondylar​ ​calcaneal tendon​ ​flexion of the​ ​(2)​
​line of​​femur​ ​ankle​​(talocrural​
(​ Posterior​ ​joint)​
​Compartment)​
-​ ​Weak flexion​
(​ Superficial​ ​of the knee​
​Group)​ ​(tibiofemoral​
​joint)​


​Popliteus​ -​ Lateral condyle​ -​ Proximal,​ -​ ​Medially​ ​-​Tibial L4,​​5​, S​​1​
​of the femur​ ​posterior aspect​ ​rotate the​
(​ Deep​ ​of tibia​ ​flexed knee​
​Posterior)​ ​(tibiofemoral​
​joint)​

-​ ​Flex the knee​
​(T/F joint)​

, ​ ibialis​
T -​ Proximal,​ -​ All five tarsal​ ​-​Invert the foot​ -​ Tibial L(4),​​5​,​
​Posterior​ ​posterior shafts​ ​bones and bases​ ​S​1​
​of tibia and​ ​of second​ -​ ​Plantar flex​
​fibula; and​ ​through fourth​ ​the ankle​
(​ Deep​ ​interosseous​ ​metatarsals​ ​(talocrural joint)​
​Posterior)​ ​membrane​

​ lexor​
F -​ Middle,​ -​ ​Distal​ -​ ​Flex the​ -​ Tibial L​​5​, S​​1​,​
​Digitorum​ ​posterior surface​ ​phalanges of​ ​second through​ ​(2)​
​Longus​ ​of​​tibia​ ​second through​ ​fifth toes​
​fifth toes​ ​(metatarsophala​
​ngeal and​
(​ Deep​
​interphalangeal​
​Posterior)​
​joints)​

-​ ​Weak plantar​
​flexion of ankle​
​(talocrural joint)​

​-​Invert the foot​


​ lexor Hallucis​ -​ Middle half of​
F -​ Distal phalanx​ -​ ​Flex the first​ ​-​Tibial L​​5​, S​​1​,​​2​
​Longus​ ​posterior fibula​ ​of first toe​ ​toe​
​(metatarsophala​
(​ Deep​ ​ngeal and​
​Posterior)​ ​interphalangeal​
​joints)​

-​ Weak plantar​
​flexion of ankle​
​(talocrural joint)​

​-Invert the foot​


​ ibularis​
F -​ Head of fibula​ -​ Base of the first​ -​ ​Evert the foot​ -​ Superficial​
​Longus​ ​and proximal​ ​metatarsal and​ ​fibular L4,​​5​, S​​1​
​two-thirds of​ ​medial​ ​-​Assist to​
(​ Lateral​ ​lateral fibula​ ​cuneiform​ ​plantar flex the​
​Compartment)​ ​ankle​​(talocrural​
​joint)​


​Fibularis Brevis​ ​-Distal​ ​-Tuberosity of​ ​-Evert the foot​ ​-Superficial​