- Iliacus muscle
Muscle infobox
Name = Iliacus muscle
Latin = musculus iliacus
GraySubject = 127
GrayPage = 467
Caption = The iliacus and nearby muscles
Caption2 = Righthip bone . Internal surface. (Iliac fossa visible at upper left.)
Origin =iliac fossa
Insertion =lesser trochanter offemur
Action =flexes androtates laterally thigh
Antagonist = Gluteus maximus
Blood =medial femoral circumflex artery ,iliac branch of iliolumbar artery
Nerve =femoral nerve
MeshName =
MeshNumber =
DorlandsPre = m_22
DorlandsSuf = 12549271
The Iliacus is a flat, triangular muscle, which fills theiliac fossa .It arises from the upper two-thirds of this fossa, and from the inner lip of the
iliac crest ; behind, from the anteriorsacroiliac and theiliolumbar ligament s, and base of thesacrum ; in front, it reaches as far as theanterior superior iliac spine andanterior inferior iliac spine , and the notch between them.The fibers converge to be inserted into the lateral side of the tendon of the
Psoas major , which contributes to flexing the femur anteriorly onto the pelvis. Some of the iliacus fibers may reach the body of thefemur , for about 2.5 cm. below and in front of thelesser trochanter .The Iliacus is sometimes considered a part of the
Iliopsoas group ofhip flexor muscles.This muscle is innervated by the anterior branches of the Femoral nerve (anterior branches of L2-3).
=AdditionalExternal links
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* [http://www.ptcentral.com/muscles/musclelegs.html#illiacus PTCentral]
* - "Muscles and nerves of the posterior abdominal wall."
* (NormanAnatomyFig|femalepelvicdiaphragm, NormanAnatomyFig|malepelvicdiaphragm)
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