Thigh

Question 1

What muscles are in the anterior thigh?

Answer 1

Articularis genus
Illiopsoas
Sartorius
Rectus femoris, vastus intermedius, lateralis and medialis

Question 2

What muscles are anterior thigh flexors?

Answer 2

Articularis genus
Iliopsoas
Sartorius

Question 3

What muscles are anterior thigh extensors?

Answer 3

Rectus femoris
Vastus intermedius
Vastus lateralis
Vastus medialis

Question 4

Of all the anterior thigh muscles, which one is not supplied by the femoral nerve?

Answer 4

Psoas major (Iliopsoas)

Question 5

What nerve is the psoas major supplied by?

Answer 5

Ventral rami of first lumbar nerve

Question 6

Which muscles of the anterior thigh flexors are not supplied by the femoral artery?

Answer 6

Iliopsoas

Question 7

What artery is the iliopsoas supplied by?

Answer 7

Illiacus - iliac branches of iliolumbar artery

Psoas major - lumbar braches of iliolumbar artery

Question 8

What do all 4 quadriceps femoris muscles do?

Answer 8

Extend the leg at the knee joint

Rectus femoris also flexes the thigh at the hip joint

Question 9

What is the action of the Sartorius?

Answer 9

Abducts
Laterally rotates the hip
Flexes thigh
Flexes knee

Question 10

What is the action of the Illiacus?

Answer 10

Flexes thigh at hips

Stabilises the hip joint

Question 11

What is the function of the Psoas major?

Answer 11

Flexes hip

Question 12

What is the action of the Articularus genus?

Answer 12

Pulls suprapatellar bursa superiorly

Extension of knee

Question 13

What are the attachments of the Sartorius?

Answer 13

ASIS to medial tibia

Question 14

What are the attachments of the Articularis genus?

Answer 14

Distal femur to supra patellar bursa?

Question 15

What are the attachments of the Illiacus?

Answer 15

Iliac crest to lesser trochanter of femur

Question 16

What are the attachments of the Psoas major?

Answer 16

Lumbar vertebrae (T12 - L5) to lesser trochanter of femur

Question 17

What are the attachments of the Rectus femoris?

Answer 17

AIIS to tibia

Question 18

What are the attachments of the Vastus intermedius?

Answer 18

Body of femur to base of patella and tibial tuberosity (via patellar ligament)

Question 19

What are the attachments of the Vastus lateralis?

Answer 19

Greater trochanter to base of patella and tibial tuberosity (via patellar ligament)

Question 20

What are the attachments of the Vastus medialis?

Answer 20

Intertrochanteric line to base of patella and tibial tuberosity (via patellar ligament)

Question 21

Where do all vastus muscles attach to inferiorly?

Answer 21

Base of patella and tibial tuberosity (via patellar ligament)

Question 22

Name the muscles of the medial thigh

Answer 22

Adductor brevis
Adductor longs
Adductor magnus
Gracillis
Obturator externus
Pectineus

Question 23

What nerve are most of these muscles innervated by?

Answer 23

Obturator nerve

Question 24

What nerve is the adductor magnus supplied by?

Answer 24

Obturator nerve

Sciatic nerve - hamstring

Question 25

What nerve is the pectineus supplied by?

Answer 25

Obturator nerve | Femoral nerve

Question 26

What is the action of medial thigh muscles?

Answer 26

Adduct thigh at the hip

Question 27

What is the action of the adductor magnus?

Answer 27

Adducts thigh Flexes thigh Extends thigh - hamstring

Question 28

What is the action of the gracilis?

Answer 28

Adducts thigh | Flexes and medially rotates the leg

Question 29

What is the action of the obturator externus?

Answer 29

Adducts thigh Laterally rotates thigh Stabilises HOF in acetabulum

Question 30

What is the action of the pectineus?

Answer 30

Adducts thigh | Flexes thigh

Question 31

What are the attachments of the adductor brevis?

Answer 31

Inferior pubic ramus to linea aspera of femur

Question 32

What are the attachments of the adductor longus?

Answer 32

Inferior pubic ramus to middle 1/3rd of linea aspera of femur

Question 33

What are the attachments of the adductor magnus?

Answer 33

Inferior pubic ramus to gluteal tuberosity | Ischial tuberosity to adductor tubercle of femur - hamstring

Question 34

What are the attachments of the gracilis?

Answer 34

Inferior pubic ramus to tibia

Question 35

What are the attachments of the obturator externus?

Answer 35

Obturator foramen to trochanteric fossa of femur

Question 36

What are the attachments of the pectineus?

Answer 36

Superior pubic rami to pectineal line of femur

Question 37

What is the arterial supply to the medial muscles?

Answer 37

Profundal femoris Medial circumflex Femoral Obturator (all except gracilis and longus)

Question 38

Name the posterior thigh muscles

Answer 38

Biceps femoris Semimebranous Semitendinosus

Question 39

What nerve innervates the posterior thigh muscles?

Answer 39

Sciatic nerve

Question 40

What is the arterial supply to the posterior thigh muscles?

Answer 40

Profundal femoris Medial circumflex Femoral

Question 41

What are the attachments of the semimembranosus?

Answer 41

Ischial tuberosity to posterior of medial condyle of tibia

Question 42

What are the attachments of the semitendinosus?

Answer 42

Ischial tuberosity to superior part of medial surface of tibia

Question 43

What are the attachments of the biceps femoris?

Answer 43

Ischial tuberosity to lateral side of head of fibula - long head Linea aspera to tibia - short head

Question 44

What is the action of the semi muscles?

Answer 44

Flexes leg | Extends thigh

Question 45

What is the action of the biceps femoris?

Answer 45

Flexes leg Laterally rotates leg Extends thigh at hip

Question 46

What do all the quadratus femoris muscles attach to inferiorly?

Answer 46

Base of patella and tibial tuberosity via patella ligament