Complete Pelvis & Thigh Muscles Chart with Origins, Insertions, Innervation & Actions

​Trail Guide -Pelvis & Thigh: Page 291​

​Pelvis & Thigh Chart:​

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

​Biceps Femoris​ ​Long head:​ ​-Head of the​ -​ ​Flex the​ ​Long head:​​Sciatic​
f​ ibula​ ​knee​ (​ tibial branch) beest​
​(Posterior Thigh)​ -​ Ischial​ ​(tibiofemoral​ ​2,3 Short head:​
​tuberosity​ ​joint)​ ​Sciatic (fibular​
​(Hamstrings)​ ​branch) L5, S1, 2​
​Short head:​ ​-Laterally​
​rotate the​ ​Sciatic nerve​
-​ Lateral lip of​ ​flexed knee​
​linea aspera​ ​(T/F joint) .​

​Long head:​

-​ ​Extend the​
​hip​​(coxal​
​joint)​

​Long head:​

-​ Assist to​
​laterally​
​rotate the​
​hip​​(coxal​
​joint)​

-​ Tilt the​
​pelvis​
​posteriorly​

​Semitendinosus​ -​ Ischial​ -​ Proximal,​ |​​​-Flex the​ ​|​​Sciatic​​(tibial​
​tuberosity​ ​medial shaft of​ ​knee​ ​ ranch) L4, 5, S1, 2​
b
​the tibia​​at pes​ ​(tibiofemoral​
​(Posterior Thigh)​ ​anserinus tendon​ ​joint)​

​(Hamstrings)​ -​ ​Medially​
​rotate the​
​flexed knee​
​(T/F joint)​

​-​Extend the​

, ​ ip​​(coxal​
h
​joint)​

-​ Assist to​
​medially​
​rotate the​
​hip​​(coxal​
​joint)​

-​ Tilt the​
​pelvis​
​posteriorly​

​Semimembranosus​ -​ Ischial​ -​ Posterior aspect​ -​ ​Flex the​ ​-​Sciatic​​nerve​
​tuberosity​ ​of​​medial​ ​knee​
​(Posterior Thigh)​ ​condyle of tibia​ ​(tibiofemoral​
​joint)​
​(Hamstrings)​
-​ Medially​
*​ *more medial than​ ​rotate the​
​semitendinosus​ ​flexed knee​
​(T/F joint)​

-​ Extend the​
​hip​​(coxal​
​joint)​

-​ Assist to​
​medially​
​rotate the​
​hip​​(coxal​
​joint)​

-​ Tilt the​
​pelvis​
​posteriorly​

​Gluteus Maximus​ ​ occyx​​, edge​
C -​ iliotibial tract​ ​All fibers:​ I​ nferior gluteal​​L5,​
​of sacrum,​ ​(upper fibers)​ ​S1, 2​
​posterior iliac​ -​ ​Extend​​the​
​(Gluteals)​ ​crest​​,​ ​-​gluteal​ ​hip (coxal​
​sacrotuberous​ ​tuberosity​​(lower​ ​joint)​
​and sacroiliac​ ​fibers)​
​ligaments​ ​-​Laterally​
​-PSIS​ ​-gluteal tubercle​ ​rotate​​the​
​hip (coxal​