Muscles of the Lower Limb Flashcards
Origin, Insertion, and Action of the Gluteus Maximus
O:Dorsal ilium, sacrum, coccyx
I:Gluteal tuberosity of femur, iliotibial (IT) tract (band)
A:Thigh Extension, abduction, lateral (external) rotation @ hip
Origin, Insertion, and Action of the Gluteur Medius
O:Posterolateral ilium
I:Greater trochanter of femur
A:thigh abduction, medial (internal) rotation @ hip
Origin, Insertion, and Action of the Gluteus Minimus
O:Posterolateral ilium
I:Greater trochanter of femur
A:Thigh abduction, medial (internal) roation @ hip
Origin, Insertion, and Action of the Piriformis
O:Anterior Sacrum
I:Greater trochanter of femur
A:Thigh lateral (external) rotation @ hip
Origin, Insertion, and Action of the Semimembranosus
O:Ischial tuberosity of ischium
I:Medial condyle tibia
A:Thigh extension, medial (internal) rotation @ hip, Leg flexion @ knee
Origin, Insertion, and Action of the Semitendinosus
O:Ischial tuberosity of ischium
I:Medial condyle tibia
A:Thigh extension, medial (internal) rotation @ hip, Leg Flexion @ knee
Origin, Insertion, and Action of the Biceps Femoris
O:Ischial tuberosity of ischium (Long head), Linea aspera of femur
I:Head of fibula, lateral condyle of tibia
A:Thigh extension, lateral (external) rotation @ hip, Leg flexion
Origin, Insertion, and Action of the Adductor Brevis
O:Pubis
I:Linea apera of femur
A:Thich adduction, flexion and medial (internal) rotation @ hip
Origin, Insertion, and Action of the Adductor longus
O:Pubis
I:Linea aspera of femur
A:Thigh adduction, flexion and medial (internal) rotation @ hip
Origin, Insertion, and Action of the Adductor Magnus
O:Ischium Pubis (anterior); ischial tuberosity of ischium (posterior)
I:Linea aspera of femur, adductor tubercle of femur
A:Thigh adduction, flexion and medial (internal) rotation @ hip
Origin, Insertion, and Action of the Pectineus
O:Pubis
I:Proximal, Porterior femur
A:Thigh adduction, flexion and medial (internal) rotation @ hip
Origin, Insertion, and Action of the Gracilis
O:Pubis
I:Proximal, medial tibia
A:Thigh adduction, flexionand medial (internal) rotation @ hip
Origin, Insertion, and Action of the Iliopsoas (made of iliacus and psoas major muscles)
O:Iliac crest & internal ilium (iliacus), anterior of T12-L5 vertebrae (psoas major)
I:Lesser trochanter of femur
A:THigh Flexion @ hip, trun flexion @ hip (both), Lateral flexion of certebral column @ intervertebral joints (psoas only)
Origin, Insertion, and Action of the Sartorius
O:Anterior superior iliac spine (ASIS) of ilium
I:Proximal, medial tibia
A:Thigh flexion, abduction, lateral (external) rotation @ hip; weak leg flexion @ knee
Origin, Insertion, and Action of the Tensor fasciae latae
O:Iliac crest, anterior superior iliac spine (ASIS) of ilium
I:Iliotibial (IT) Tract (Band)
A:Thigh flexion, abduction and medial (internal) rotation @ hip
Origin, Insertion, and Action of the Rectus femoris (part of Quadriceps femoris)
O:Anterior inferior iliac spine (AIIS) of ilium, acetabulum of os coxa
I:Tibial tuberosity of tibia via patellar ligament
A:Thigh flexion @ hip, Leg extension @ knee
Origin, Insertion, and Action of the Vastus Lateralis (Part of quads)
O:Greater trochanter and linea aspera of femur
I:tibial tuberosity of tibia via patellar ligament
A:Leg extension @ knee
Origin, Insertion, and Action of the Vastus Intermedius (Part of quads)
O:Proximal, anterior femur
I:Tibial tuberosity of tibia via patellar ligament
A:Leg extension @ knee
Origin, Insertion, and Action of the Vastus Medialis (Part of quads)
O:Linea aspera of femur
I:Tibial tuberosity of tibia via patellar ligament
A: Leg extension @ knee
Origin, Insertion, and Action of the Tibialis anterior
O:Proximal, lateral aspects of tibia, IOM
I:Medial cuniform, 1st metatarsal
A:Foot dorsiflexion, inversion @ ankle
Origin, Insertion, and Action of the Extensor digitorum longus
O:Lateral condyle of tibia, Most of anterior fibula, IOM
I:Phalanges of toes 2-5
A:Toe extension @ several joints, foot dorsiflexion @ ankle
Origin, Insertion, and Action of the Extensor Hallucis longus
O:Proximal, medial fibula, IOM
I:Distal phalanx of great toe
A:Great toe extension @ several joints, foot dorsiflexion @ ankle
Origin, Insertion, and Action of the Fibularis (peroneus) Longus
O:Proximal, Lateral Fibula
I:1st metatarsal, medial cuneiform
A:Foot plantar flexion, eversion @ ankle
Origin, Insertion, and Action of the Fibularis (Peroneus) brevis
O:Distal fibula
I:5th metatarsal
A:Foot eversion, plantar flexion @ ankle
Origin, Insertion, and Action of the Tibialis posterior
O:Proximal, posterior tibia, fibula IOM
I:Navicular, cuniform, cubiod bones, 2nd and 4th metatarsals
A:Foot iversion, plantar flexion @ ankle
Origin, Insertion, and Action of the Flexor digitorum longus
O:Posterior tibia
I:Phalanges of toes 2-5
A:Toe flexion @ several joints, weak foot plantar flexion, inversion @ ankle
Origin, Insertion, and Action of the Flexor hallucis longus
O:Posterior fibula, IOM
I:Distal phalanx of great toe
A:Great to flexion @ several joints, foot plantar flexion, inversion @ ankle
Origin, Insertion, and Action of the Plantaris
O:Lateral epicondyle of femur
I:calcaneus
A:Foot plantar flexion @ ankle (weak) leg flexion @ knee (weak)
Origin, Insertion, and Action of the Gastrocnemius
O:Medial and lateral condyles of femur
I:Calcaneus
A:Foot plantar flexion @ ankle, Leg flexion @ knee
