Anterior& medial thigh muscles +femoral triangle Flashcards
compartments of the thigh
anterior compartment
- leg extensors
- hip flexors
medial compartment
- thigh adductors
- medially rotate thigh
posterior compartment
- leg flexion
- thigh extension
deep fascia of the leg
fascia lata
- forms a “stocking-like” membrane
- separates the compartments
- gluteus maximus and tensor fascia latae muscles fuse with the fascia lata
anterior compartment
leg extensors at the knee joint and hip flexors
- iliopsoas (psoas, iliacus)
- rectus femoris
- vasus lateralis
- sartorius
- vastus medialis
- vastus intermedius
- quadriceps femoris tendon
psoas major
O: transverse process and vertebral bodies of T12-L5
Iliacus
O: iliac fossa
iliopsoas
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
sartorius
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
rectus femoris
O: anterior inferior iliac spine
I: quadriceps femoris tendon
A: flexes thigh as hip joint & extend leg at knee joint
In: femoral n
vastus lateralis
O: lateral intertrochanteric line of femur
I: lateral patella via quadriceps femoris tendon
A: extend leg at knee joint
In: femoral n
vastus medialis
O: medial intertrochanteric line of femur
I: medial patella via quadriceps femoris tendon
A: extend leg at knee joint
In: femoral n
vastus intermedius
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
what are the vastus muscles
- vastus medialis
- vastus laterialis
- vastus intermedius
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
E)
medial compartment
- pectineus
- adductor longus
- gracilis
- adductor brevis
- adductor magnus
- adductor hiatus
medial superficial muscles
- gracilis
- pectineus
- adductor longus
gracilis
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
pectineus
O: pectineal line
I: pectineal line of the femur
A: adduct and flexes thigh at hip joint
In: femoral n
adductor longus
O: external surface pubis
I: linea aspera on femur
A: adducts and medially rotate thigh at hip joint
In: obturator n
medial deep muscles
- adductor brevis
- adductor magnus
adductor brevis
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
adductor magnus adductor part
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
adductor magnus hamstring part
O: ischial tuberosity
I: supracondylar line
A: adducts and medially rotates thigh at hip joint
In: sciatic n.
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
f)
femoral triangle
lateral border: sartorius
medial border: adductor longus, pectineus
superior border: Inguinal ligament
contents of the femoral triangle
femoral nerve
femoral artery
femoral vein
(lateral to medial) nerve, artery, vein, lymph node
- lymph nodes
- femoral sheath
- femoral canal
