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A detailed overview of the anterior medial hip muscles, including their origins, insertions, and actions. It covers the pectineus, psoas major (iliopsoas), iliacus (iliopsoas), sartorius, rectus femoris, adductor longus, adductor brevis, adductor magnus, gracilis, and obturator externus muscles. The information is presented in a concise and organized manner, making it a valuable resource for students preparing for an anatomy exam in 2024. Labeled diagrams and comprehensive descriptions of each muscle's function, making it a comprehensive study guide for understanding the complex musculature of the anterior medial hip region.
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Pectineus
psoas major (iliopsoas)
P: superior ramus of pubis D: pectineal line of femur, inferior to lesser trochanter Actions: adducts thigh, flexes thigh
P: transverse processes of lumbar vertebrae, sides of bodies of T12-L5 and discs D: strong tendon to lesser trochanter of femur Actions: acts with iliacus to flex thigh, stabilizes hip while standing
Iliacus (Iliopsoas)
Sartorius
P: iliac fossa and crest, sacrum and sacroiliac liga- ments D: strong tendon to lesser trochanter of femur Actions: acts with psoas major to flex thigh, stabi- lizes hip while standing
P: anterior superior iliac spine D: superior part of medial surface of tibia Actions: flexes thigh at hip, abducts thigh at hip, later- ally rotates thigh at hip
Adductor brevis
Adductor magnus
P: body and inferior ramus of pubis D: pectineal line and proxi- mal part of linea aspera of femur Actions: adducts thigh at hip
P: adductor part: inferior ramus of pubis, ramus of ischium hamstring part: ischial tuberosity D: adductor part: gluteal tuberosity,linea aspera, medial supracondylar line hamstring part: adductor tubercle of femur Actions: adducts thigh at hip, adductor part: flexes, hamstring part: extends
Gracilis
Obturator externus
P: body and inferior ramus of pubis D: superior part of medial surface of tibia Actions: adducts thigh at hip, flexes leg at knee, helps medially rotates leg at knee
P: margins of obturator foramen and obturator D: trochanteric fossa of fe- mur Actions: lateral rotates thigh, steadies head of fe- mur in acetabulum
