Muscles of the Thigh (Anterior/Posterior) Flashcards
Biceps Femoris Long Head (Origin & Insertion)
O: Ischial tuberosity
I: Fibular head
Biceps Femoris Long Head (Actions)
Prime mover for flexing knee & extending hip
Externally rotate knee
Biceps Femoris Long Head (Nerve & Artery)
N: Sciatic N
A: Deep femoral A
Biceps Femoris Short Head (Origin & Insertion)
O: Linea aspera & lat supracondylar line of the femur
I: Fibular head
Biceps Femoris Short Head (Actions)
Prime mover for flexing the knee
Externally rotates the knee
Biceps Femoris Short Head (Nerve & Artery)
N: Sciatic N
A: Deep femoral A
Semimembranosus (Origin & Insertion)
O: Ischial tuberosity
I: Med post tibial condyle
Semimembranosus (Actions)
Prime mover for flexing the knee
Extends hip
Internally rotates Knee
Semimembranosus (Nerve & Artery)
N: sciatic N
A: Deep femoral A
Semitendinosus (Origin & Insertion)
O: Ischial tuberosity
I: Sup anteromed tibia
Semitendinosus (Actions)
Prime mover for flexing the knee
Extends hip
Internally rotates knee
Gracilis (Origin & Insertion)
O: Inf pubic body & inf pubic ramus
I: Sup anteromedial tibia
Gracilis (Actions)
Adducts & internally rotates hip
Flexes & internally rotates knee
Gracilis (Nerve & Artery)
N: Obturator N
A: Femoral & deep femoral Aa
Adductor Magnus (Origin & Insertion)
O: Inf pubic ramus to ischial tuberosity
I: Linea aspera, med supracondylar ridge, & adductor tubercle
Adductor Magnus (Actions)
Adducts hip
Flexes & extends hip
Adductor Magnus (Nerve & Artery)
N: Obturator & sciatic N
A: Femoral & deep femoral Aa
Adductor Longus (Origin & Insertion)
O: Ant pubic body
I: Central linea aspera of femur
Adductor Longus (Actions)
Adducts & internally rotates hip
Aids in hip flexion
Adductor Longus (Nerve & Artery)
N: Obturator N
A: Femoral & deep femoral Aa
Adductor Brevis (Origin & Insertion)
O: Inf pubic body & inf pubic ramus
I: Inf pectineal line & sup linea aspera of femur
Adductor Brevis (Actions)
Adducts & internally rotates hip
Flexes hip
Adductor Brevis (Nerve & Artery)
N: Obturator N
A: Femoral & deep femoral Aa
Pectineus (Origin & Insertion)
O: Pectineal line of sup pubic ramus
I: Femoral pectineal line
Pectineus (Actions)
Adducts & flexes hip
Internally rotation of hip
Pectineus (Nerve & Artery)
N: Femoral N
A: Femoral & deep femoral Aa
Sartorius (Origin & Insertion)
O: Ant sup iliac spine
I: Sup anteromed tibia
Sartorius (Actions)
Externally rotates, abducts, & flexes hip
Flexes knee
Sartious (Nerve & Artery)
N: Femoral N
A: Femoral & deep femoral Aa
Articularis Genu (Origin & Insertion)
O: Ant inf femoral diaphysis
I: Synovial sac of the knee
Articularis Genu (Actions)
Elevates suprapatellar bursa/synovial sac during knee extension
Articularis Genu (Nerve & Artery)
N: Femoral N
A: Femoral & deep femoral Aa
Rectus Femoris (Origin & Insertion)
O: Ant inf iliac spine
I: Tibial tuberosity via patellar tendon
Rectus Femoris (Actions)
Prime mover for extending knee
Flexes Hip
Rectus Femoris (Nerve & Artery)
N: Femoral N
A: Femoral & deep femoral Aa
Vastus Intermedius (Origin & Insertion)
O: Ant & lat femoral shaft
I: Tibial tuberosity via patellar tendon
Vastus Intermedius (Actions)
Prime mover for extending the knee
Vastus Intermedius (Nerve & Artery)
N: Femoral N
A: Femoral & deep femoral Aa
Vastus Medialis (Origin & Insertion)
O: Femoral linea aspera & med femoral diaphysis
I: Tibial tuberosity via patellar tendon
Vastus Medialis (Actions)
Prime mover for extending the knee
Vastus Medialis (Nerve & Artery)
N: Femoral N
A: Femoral & deep femoral Aa
Vastus Lateralis (Origin & Insertion)
O: Greater trochanter, linea aspera & lat diaphysis of femur
I: Tibial tuberosity via patellar tendon
Vastus Lateralis (Actions)
Prime mover for extending the knee
Vastus Lateralis (Nerve & Artery)
N: Femoral N
A: Femoral & deep femoral Aa