thigh muscles

Question 1

name, origin, insertion, action, layer

Answer 1

bicep femoris (long head)
o: ischial tuberosity
i: head of fibula
a: extends the hip, flexes the knee
hamstring muscles

Question 2

name, origin, insertion, action, layer

Answer 2

semitendinosus
o: ischial tuberosity
i: tibia
a: extends the hip, medially rotates the leg
posterior hip muscles (hip extensors)

Question 3

name, origin, insertion, action, layer

Answer 3

semimebranosus
o: ischial tuberosity
i: tibia
a: extends the hip, flexes the knee, medially rotates the leg
posterior hip muscles (hip extensors)

Question 4

name, origin, insertion, action, layer

Answer 4

rectus femoris
o: iliac spine
i: patella
a: hip joint: thigh flexion, knee joint:leg extension

Question 5

name, origin, insertion, action, layer, what does it make up

Answer 5

vastus lateralis
o: gluteal tuberosity, linea aspera of femur
i: patella, tibia tuberosity
a: leg extension
anterior group - quadricep femoris

Question 6

name, origin, insertion, action, layer, what does it make up

Answer 6

vastus medialis
o: medial supracondylar line of femur
i: tibial tuberosity, patella
a: knee joint: leg extension

Question 7

name, origin, insertion, action, layer, what does it make up

Answer 7

vastus intermedius
o: anterior surface of femoral shaft
i: tibial tuberosity, patella
a: knee joint: leg extension
anterior group - quadriceps femoris

Question 8

name, origin, insertion, action, layer

Answer 8

sartorius
o: anteror superior iliac spine (ASIS)
i: medial surface of the proximal tibia
a: flexes, abducts and laterally rotates the hip, flexes the knee
anterior group

Question 9

name, origin, insertion, action, layer

Answer 9

adductor magnus
o: inferior pubic ramus
i: gluteal tuberosity
a: thigh movement, pelvis stabilization
medial group - deep plane

Question 10

name, origin, insertion, action, layer

Answer 10

adductor brevis
o: pubis
i: femur
a: thigh movement, pelvis stabilization
medial group - middle plane

Question 11

name, origin, insertion, action, layer

Answer 11

pectineus
o: ramus
i: femur
a: thigh movement, pelvis stabilization
medial group, middle plane

Question 12

name, origin, insertion, action, layer

Answer 12

adductor longus
o: body of pubis
i: femur
a: thigh movement, pelvis stabilization
medial group - superficial plane

Question 13

name, origin, insertion, action, layer

Answer 13

gracilis
o: ramus
i: tibia
a: thigh movement, leg flexion and internal rotation
medial group - superficial plane