Anterior& medial thigh muscles +femoral triangle

Question 1

compartments of the thigh

Answer 1

anterior compartment
- leg extensors
- hip flexors
medial compartment
- thigh adductors
- medially rotate thigh
posterior compartment
- leg flexion
- thigh extension
deep fascia of the leg

Question 2

fascia lata

Answer 2

• forms a “stocking-like” membrane
• separates the compartments
• gluteus maximus and tensor fascia latae muscles fuse with the fascia lata

Question 3

anterior compartment

Answer 3

leg extensors at the knee joint and hip flexors
- iliopsoas (psoas, iliacus)
- rectus femoris
- vasus lateralis
- sartorius
- vastus medialis
- vastus intermedius
- quadriceps femoris tendon

Question 4

psoas major

Answer 4

O: transverse process and vertebral bodies of T12-L5

Question 5

Iliacus

Answer 5

O: iliac fossa

Question 6

iliopsoas

Answer 6

Psoas major origin + iliacus origin
I: lesser trochanter of femur
A: flexes the thigh at hip joint + lateral rotation of the thigh
In: femoral n

Question 7

sartorius

Answer 7

O: anterior superior iliac spine
I: medial surface of tibia
A: flexes thigh at hip joint and flexes leg at knee joint
In: femoral n

Question 8

rectus femoris

Answer 8

O: anterior inferior iliac spine
I: quadriceps femoris tendon
A: flexes thigh as hip joint & extend leg at knee joint
In: femoral n

Question 9

vastus lateralis

Answer 9

O: lateral intertrochanteric line of femur
I: lateral patella via quadriceps femoris tendon
A: extend leg at knee joint
In: femoral n

Question 10

vastus medialis

Answer 10

O: medial intertrochanteric line of femur
I: medial patella via quadriceps femoris tendon
A: extend leg at knee joint
In: femoral n

Question 11

vastus intermedius

Answer 11

O: upper 2/3 of anterior and lateral femur
I: quadriceps femoris tendon + lateral patella and lateral condyle of tibia
A: extend the leg at knee joint
In: femoral n

Question 12

what are the vastus muscles

Answer 12

• vastus medialis
• vastus laterialis
• vastus intermedius

Question 13

which of the following is a function of the sartorius muscles
A) flex thigh at hip joint
B) extend the leg at the knee joint
C) flex leg at the knee joint
D) extend thigh at hip joint
E) A and C
F) B and D

Answer 13

E)

Question 14

medial compartment

Answer 14

• pectineus
• adductor longus
• gracilis
• adductor brevis
• adductor magnus
• adductor hiatus

Question 15

medial superficial muscles

Answer 15

• gracilis
• pectineus
• adductor longus

Question 16

gracilis

Answer 16

O: inferior pubic ramus and ramus of ischium
I: medial surface of proximal tibia
A: adduct thigh at hip joint and flex the leg at knee joint
In: obturator n

Question 17

pectineus

Answer 17

O: pectineal line
I: pectineal line of the femur
A: adduct and flexes thigh at hip joint
In: femoral n

Question 18

adductor longus

Answer 18

O: external surface pubis
I: linea aspera on femur
A: adducts and medially rotate thigh at hip joint
In: obturator n

Question 19

medial deep muscles

Answer 19

• adductor brevis
• adductor magnus

Question 20

adductor brevis

Answer 20

O: external surface pubis and inferior pubic ramus
I: posterior surface of femur and upper 1/3 of linea aspera
A: adducts and medially rotate thigh at hip joint
In: obturator n

Question 21

adductor magnus adductor part

Answer 21

O: ischiopubic ramus
I: posterior surface of proximal femur, linea aspera, and medial supracondylar line
A:adducts and medially rotates thigh at hip joint
In: obturator n

Question 22

adductor magnus hamstring part

Answer 22

O: ischial tuberosity
I: supracondylar line
A: adducts and medially rotates thigh at hip joint
In: sciatic n.

Question 23

a patient has expressed they are unable to point their feet inwards when skiing, what muscles?
a) gracilis
b) adductor brevis
c) sartorius
d) adductor longus
e) A and C
f) B and D

Answer 23

f)

Question 24

femoral triangle

Answer 24

lateral border: sartorius
medial border: adductor longus, pectineus
superior border: Inguinal ligament

Question 25

contents of the femoral triangle

Answer 25

femoral nerve
femoral artery
femoral vein
(lateral to medial) nerve, artery, vein, lymph node
- lymph nodes
- femoral sheath
- femoral canal