Knee Joint

Question 1

RECTUS FEMORIS

Answer 1

O: AIIS
I: TIBIAL TUBEROSITY 
N: FEMORAL NERVE L3-L4
K:
1) Extension of leg at knee jt
2) Flexion of thigh at hip jt
RMA:
1) Extension of thigh at knee jt
2) Anteriorly tilts pelvis at hip jt

Question 2

VASTUS LATERALIS

Answer 2

O: LATERAL LIP OF LINEA ASPERA 
I: TIBIAL TUBEROSITY
N: FEMORAL NERVE (L3-L4)
K:
1) Extension of leg at knee jt
RMA:
2) Extension of thigh at knee jt

Question 3

VASTUS MEDIALIS

Answer 3

O: LINEA ASPERA OF FEMUR (medial lip)
I: TIBIAL TUBEROSITY
N: FEMORAL NERVE (L3-L4)
K:
1) Extension of leg at knee jt
RMA:
2) Extension of thigh at knee jt

Question 4

VASTUS INTERMEDIUS

Answer 4

O: ANTERIOR SHAFT AND LINEA ASPERA OF FEMUR
I: TIBIAL TUBEROSITY
N: FEMORAL NERVE (L3-L4)
K:
1) Extension of leg at knee jt
RMA:
2) Extension of thigh at knee jt

Question 5

BICEPS FEMORIS

Answer 5

O: ISCHIAL TUBEROSITY, sacrotuberous ligament + LINEA ASPERA, lateral supracondylar line of femur
I: FIBULAR HEAD, lateral tibial condyle
N: SCIATIC NERVE (tibial + common fibular nerve)
K: 
1) Flexion of leg at knee
2) Extension of thigh at hip
RMA:
3) Posteriorly tilts pelvis at hip jt

Question 6

SEMITENDINOSUS

Answer 6

O: ISCHIAL TUBEROSITY
I: PES ANSERINE TENDON
N: SCIATIC NERVE (tibial, S1)
K:
1) Flexion of leg at knee
2) Extension of thigh at hip
RMA:
3) Posteriorly tilts pelvis at hip jt

Question 7

SEMIMEMBRANOSUS

Answer 7

O: ISCHIAL TUBEROSITY
I: POSTERIOR SURFACE OF MEDIAL TIBIAL CONDYLE
N: SCIATIC NERVE (tibial, S1)
K:
1) Flexion of leg at knee joint
2) Extension of thigh at hip jt
RMA:
3) Posteriorly tilts pelvis at hip jt

Question 8

POPLITEUS

Answer 8

O: LATERAL SURFACE OF LATERAL FEMORAL CONDYLE
I: PROXIMAL POSTEROMEDIAL TIBIA
N: TIBIAL NERVE
K:
1) Medial rotation of leg at knee jt
2) Flexion of leg at knee jt
RMA:
1) Lateral rotation of thigh at knee jt