Anterior and Medial Thigh

Question 1

What are the muscles of the anterior thigh?

Answer 1

Pectineus
Iliopsoas
Sartorius
Quadriceps Femoris

Question 2

What are the muscles of the medial thigh?

Answer 2

Adductor Longus/Brevis/Magnus
Gracilis
Pectineus
Obturator Externus

Question 3

Which muscles make up quadriceps femoris?

Answer 3

Rectus Femoris
Vastus Lateralis
Vastus Medialis
Vastus Intermedius

Question 4

Which nerve innervates muscles of the anterior thigh?

Answer 4

Femoral nerve

Question 5

Where does iliopsoas insert?

Answer 5

Lesser trochanter of femur

Question 6

What action does iliopsoas contribute to?

Answer 6

Flexion at hip

Question 7

Where does sartorius originate?

Answer 7

ASIS

Question 8

Where does sartorius insert?

Answer 8

Tibia: superior aspect of medial surface

Question 9

Which actions does sartorius contribute to?

Answer 9

Flex, Abduct, and Laterally Rotate Thigh at Hip Joint

Flex at Knee

Question 10

Which nerve innervates sartorius?

Answer 10

Femoral nerve

Question 11

Where does rectus femoris originate?

Answer 11

AIIS

Question 12

Where does rectus femoris insert?

Answer 12

Base of patella

Tibial tuberosity via Patellar ligament

Question 13

Which actions does rectus femoris contribute to?

Answer 13

Flexion at hip

Extension of leg at knee

Question 14

Where does vastus lateralis originate?

Answer 14

Greater trochanter

Lateral lip of linea aspera

Question 15

Where does vastus lateralis insert?

Answer 15

Base of patella

Tibial tuberosity via patellar ligament

Question 16

Where does vastus medialis originate?

Answer 16

Intertrochanteric line

Medial lip of linea aspera

Question 17

Where does vastus medialis insert?

Answer 17

Base of patella

Tibial tuberosity via Patellar ligament

Question 18

Which action do vastus lateralis and vastus medialis contribute to?

Answer 18

Extension of leg at knee

Question 19

Where does vastus intermedius originate?

Answer 19

Anterior and lateral surfaces of femur

Question 20

Where does vastus intermedius insert?

Answer 20

Base of Patella

Tibial tuberosity via patellar ligament

Question 21

Which action does vastus intermedius contribute to?

Answer 21

Extension of leg at knee

Question 22

Which 3 muscles insert at the superior aspect of medial surface of the tibia?

Answer 22

Sartorius
Semitendinosus
Gracilis

Question 23

Where does the tensor of vastus intermedius insert?

Answer 23

Medial aspect of patellar base

for tracking of patella

Question 24

Where is femoral nerve in relation to bony landmarks when it crosses under the inguinal ligament?

Answer 24

Halfway between AIIS and pubic bone

Question 25

What are the 2 'fringe' muscles of the medial thigh?

Answer 25

Pectineus | Adductor Magnus

Question 26

Where does pectineus originate?

Answer 26

On pubic bone

Question 27

Where does pectineus insert?

Answer 27

At pectineal line (inserts on posterior aspect of proximal femur)

Question 28

Which actions does pectineus contribute to?

Answer 28

Adduction of thigh at hip Flexion of thigh at hip Medial rotation at hip

Question 29

What nerves innervate pectineus?

Answer 29

Femoral nerve | Obturator nerve

Question 30

Where do adductor longus and adductor brevis lie in relation to each other?

Answer 30

Adductor longus is superficial to adductor brevis

Question 31

Where do adductor longus and brevis originate?

Answer 31

Pubic bone

Question 32

Where do adductor longus and brevis insert?

Answer 32

Linea aspera of femur

Question 33

What action do adductor longus and brevis contribute to?

Answer 33

Adduction of thigh

Question 34

What nerve innervates adductor longus and brevis?

Answer 34

Obturator nerve

Question 35

What are the 2 portions of adductor magnus?

Answer 35

Adductor portion | Hamstring portion

Question 36

Where does the adductor portion of adductor magnus originate and insert?

Answer 36

Pubic Bone/Ramus of Ischium --> Linea aspera of femur

Question 37

Which actions does the adductor portion of adductor magnus contribute to?

Answer 37

Adduction of thigh | Flexion of thigh

Question 38

What is the adductor portion of adductor magnus innervated by?

Answer 38

Obturator nerve

Question 39

Where does the hamstring portion of adductor magnus originate and insert?

Answer 39

Ischial tuberosity --> Adductor tubercle of femur

Question 40

What actions does the hamstring portion of adductor magnus contribute to?

Answer 40

Adduction of thigh | Extension of thigh

Question 41

What is the hamstring portion of adductor magnus innervated by?

Answer 41

Sciatic nerve (tibial division)

Question 42

Where does gracilis originate?

Answer 42

Pubic bone

Question 43

Where does gracilis insert?

Answer 43

Tibia: superior aspect of medial surface

Question 44

Which actions does gracilis contribute to?

Answer 44

Adduction of thigh Flexion at knee Medial rotation of leg

Question 45

Which nerve is gracilis innervated by?

Answer 45

Obturator nerve

Question 46

Where does obturator externus originate?

Answer 46

Obturator Membrane | Margins of Obturator Foramen

Question 47

Where does obturator externus insert?

Answer 47

Trochanteric fossa of femur

Question 48

Which actions does obturator externus contribute to?

Answer 48

Lateral rotation at hip joint | Stabilization of hip joint

Question 49

What is obturator externus innervated by?

Answer 49

Obturator nerve

Question 50

What are the two branches of the obturator nerve?

Answer 50

Posterior branch and anterior branch

Question 51

Which muscle do the branches of the obturator nerve go around?

Answer 51

Adductor brevis

Question 52

What are the boundaries of the femoral triangle?

Answer 52

Inguinal ligament Sartorius Adductor Longus

Question 53

What is contained in the femoral triangle?

Answer 53

Femoral nerve, artery, and vein

Question 54

What muscles make up the floor of the femoral triangle?

Answer 54

Iliopsoas | Pectineus