Thigh

Question 1

Name the muscles in the anterior compartment of the thigh.

Answer 1

Iliopsoas, Quadriceps femoris, Sartorius, Pectineus

Question 2

What 4 muscles make up the quadriceps femoris?

Answer 2

vastus lateralis, vastus medialis, vastus intermedus, rectus femoris

Question 3

What 2 muscles make up the iliopsoas?

Answer 3

Psoas major and the iliacus

Question 4

What is the origin site of the Psoas Major?

Answer 4

Lumbar vertebrae

Question 5

What is the origin site of the iliacus?

Answer 5

Iliac fossa

Question 6

What is the origin site of the vastus lateralis?

Answer 6

Greater trochanter and the lateral lip of the linea aspera

Question 7

What is the origin site of the vastus medialis?

Answer 7

intertrochanteric line and the medial lip of linea aspera

Question 8

What is the origin site of the vastus intermedus?

Answer 8

Anterior and lateral surfaces of the femoral shaft

Question 9

What is the origin site of the rectus femoris?

Answer 9

Ilium, just superior the acetebulum

Question 10

What is the origin site of the sartorius?

Answer 10

Anterior superior iliac spine

Question 11

What is the origin site of the pectineus?

Answer 11

pectineal line on the anterior surface of the pelvis

Question 12

What is the attachment site of the psoas major?

Answer 12

Joins with the iliacus and inserts onto the lesser trochanter of the femur

Question 13

What is the attachment site of the iliacus?

Answer 13

Joins with the psoas major onto the lesser trochanter of the femur

Question 14

What is the attachment site of the vastus medialis?

Answer 14

Attach to patella via the patella tendon

Question 15

What is the attachment site of the vastus laterialis?

Answer 15

Attach to patella via the patella tendon

Question 16

What is the attachment site of the vastus intermedus?

Answer 16

Attach to patella via the patella tendon

Question 17

What is the attachment site of the rectus femoris?

Answer 17

Attach to patella via the patella tendon

Question 18

What is the attachment site of the sartorius?

Answer 18

Superior, medial surface of tibia

Question 19

What are the nerves of the anterior compartment?

Answer 19

L1-L3 innervate Psoas Major

Femoral Nerve innervates everything else

Question 20

What is the attachment site of the pectineus?

Answer 20

Pectineal line on the posterior side of the femur

Question 21

What is the action of the iliopsoas?

Answer 21

flexes the lower limb at the hip joint and assists in lateral rotation at the hip joint

Question 22

What is the action of the vastus lateralis?

Answer 22

Extends the knee joint and stabilises the patella

Question 23

What is the action of the vastus intermedus?

Answer 23

Extends the knee joint and stabilises the patella.

Question 24

What is the action of the vastus medialis?

Answer 24

Extends the knee joint and stabilises the patella (due to horizontal fibres)

Question 25

What is the action of the rectus femoris?

Answer 25

It flexes the leg at the hip joint, and extends at the knee joint

Question 26

What is the action of the sartorius?

Answer 26

At the hip joint, it is a flexor, abductor and lateral rotator. At the knee joint, it is also a flexor

Question 27

What is the action of the pectenus?

Answer 27

Adduction and flexion at the hip joint.

Question 28

What are the muscles of the posterior compartment?

Answer 28

Adductor magnus, adductor longus, adductor brevis, obturator externus, gracillis

Question 29

What is the origin of the adductor magnus?

Answer 29

Adductor part - inferior rami of the pubis, rami of ischium | Hamstring part - ischial tuberosity

Question 30

What is the origin of the adductor longus?

Answer 30

The pubis

Question 31

What is the origin of the adductor brevis?

Answer 31

The body and inferior rami of the pubis

Question 32

What is the origin of the obturator externus?

Answer 32

Membrane of the obturator foremen

Question 33

What is the origin of the gracilis?

Answer 33

Inferior rami of pubis

Question 34

What is the attachment of the adductor magnus?

Answer 34

Adductor part- linea aspera of the femur | Hamstring part - adductor tubercle an the medial supracondylar line of the femur

Question 35

What is the attachment of the adductor longus?

Answer 35

Linea Aspera

Question 36

What is the attachment of the adductor brevis?

Answer 36

Linea Aspera

Question 37

What is the attachment of the obturator foremen?

Answer 37

Posterior of the greater trochanter

Question 38

What is the attachment of the gracillis?

Answer 38

Medial surface of tibia

Question 39

What are the nerves of the medial compartment of the thigh?

Answer 39

Hamstring of adductor magnus - tibial nerve (L4-S3) | rest is the Obturator nerve (L2-L4)

Question 40

What is the action of the adductor magnus?

Answer 40

Adduction of the hip Adductor part - flexion of thigh Hamstring - extension of thigh

Question 41

What is the action of adductor longus?

Answer 41

Adduction and medial rotation of thigh

Question 42

What is the action of adductor brevis?

Answer 42

Adduction of thigh

Question 43

What is the action of obturator foremen?

Answer 43

Laterally rotates the thigh

Question 44

What is the action of gracillis?

Answer 44

Adduction of the thigh at the hip, and flexion of the leg at the knee

Question 45

What are the muscles of the posterior compartment of the thigh?

Answer 45

Biceps femoris, semitendinosus , semimembranosus

Question 46

What are the origins of the biceps femoris?

Answer 46

Long head - Ischial tuberosity and the Short head - linea aspera on the posterior surface of the femur

Question 47

What are the origins of the semitendinosus?

Answer 47

Ischial tuberosity

Question 48

What are the origins of the semimembranosus?

Answer 48

Ischial tuberosity

Question 49

What is the attachment of the biceps femoris?

Answer 49

Inserts into the head of the fibulla

Question 50

What is the attachment of the semitendinosus?

Answer 50

Medial surface of the tibia

Question 51

What is the attachment of the semimembranosus?

Answer 51

Medial tibial condyle

Question 52

What are the nerves of the posterior compartment?

Answer 52

Biceps short head - common fibular nerve | Everything else is tibial part of sciatic nerve

Question 53

What is the action of the biceps femoris?

Answer 53

Flexion at the knee, extends the leg at the hip and laterally rotates at the hip and knee

Question 54

What is the action of the semitendinosus?

Answer 54

Flexion of the leg at the knee joint. Extension of thigh at the hip, Medially rotates the thigh at the hip joint and the leg at the knee joint/

Question 55

What is the action of the semimembranosus?

Answer 55

Flexion of the leg at the knee joint. extension of the thigh at the hip. Medially rotates the thigh at the hip joint and the leg at the knee joint.