Lecture 5 - Anterior & Medial Thigh Muscles + Femoral Triangle

Question 1

What are the three compartements of the thigh?

Answer 1

Anterior compartment, medial compartment, posterior compartment

Question 2

What is the membrane tissue that surrounds and seperates each compartment called? (above knee and below knee)

Answer 2

fascia lata (above knee) deep fascia of the leg (below knee)

Question 3

what muscles fuse with the fascia lata? (2)

Answer 3

gluteus maximus and tensor fascia latae muscles

Question 4

What action do the muscles in the anterior compartment primarily do? (2)

Answer 4

Extend leg at knee joint and flex thigh at hip joint

Question 5

What muscles are part of the anterior compartment? (7)

Answer 5

psoas + illiacus (iliopsoas), rectus femoris + vasus lateralis + vastus intermedius + vastus medialis (quad muscle group), sartorius

Question 6

Where does the psoas majro and iliacus become the ilipsoas?

Answer 6

at the inguinal ligament

Question 7

Psoas major: origin

Answer 7

transverse process and vertebral bodies of T12-L5

Question 8

Iliacus: origin

Answer 8

iliac fossa

Question 9

Iliopsoas: insertion

Answer 9

lesser trochanter of femur

Question 10

Iliopsoas: actions (2)

Answer 10

flexes the thigh at the hip joint and lateral roation of the thigh

Question 11

Psoas major, Iliacus and Iliopsoas: innervation

Answer 11

femoral nerve

Question 12

Sartorius: origin

Answer 12

anterior superior iliac spine

Question 13

Sartorius: insertion

Answer 13

Medial surface of tibia

Question 14

Sartorius: actions (2)

Answer 14

flexes thigh at hip joint and flexes leg at knee joint

Question 15

Sartorius: innervation

Answer 15

femoral nerve

Question 16

What is the sartorius muscle often refered to as and why?

Answer 16

the “seatbelt” muscle because it originates on the lateral side and crosses the thigh to insert on the medial side

Question 17

Rectus femoris: origin

Answer 17

anterior inferior iliac spine

Question 18

Rectus femoris: insertion

Answer 18

quadriceps femoris tendon

Question 19

Rectus femoris: actions (2)

Answer 19

felxes thigh at hip joint and extends leg at knee joint

Question 20

Rectus femoris: innervation

Answer 20

femoral nerve

Question 21

What are the three “vastus” muscles?

Answer 21

vastus lateralis, vastus medialis, vastus intermedius

Question 22

Vastus lateralis: origin

Answer 22

lateral intertrochanteric line of femur

Question 23

Vastus lateralis: insertion

Answer 23

lateral patella via quadriceps femoris tendon

Question 24

Vastus lateralis: action

Answer 24

extend leg at knee joint

Question 25

Vastus lateralis: innervation

Answer 25

femoral nerve

Question 26

Vastus medialis: origin

Answer 26

medial intertrochanteric line of femur

Question 27

Vastus medialis: insertion

Answer 27

medial patella via quadriceps femoris tendon

Question 28

Vastus medialis: action

Answer 28

extend leg at knee joint

Question 29

Vastus medialis: innervation

Answer 29

femoral nerve

Question 30

Vastus intermedius: origin

Answer 30

Upper 2/3 of anterior and lateral femur

Question 31

Vastus intermedius: insertions (3)

Answer 31

quadriceps femoris tendon, lateral patella and lateral condyle of tibia

Question 32

Vastus intermedius: action

Answer 32

extend the leg at the knee joint

Question 33

Vastus intermedius: innervation

Answer 33

femoral nerve

Question 34

What muscles are part of the medial compartment? - superficial (3)

Answer 34

pectineus, adductor longus, gracilis

Question 35

What muscles are part of the medial compartment? - deep (3)

Answer 35

adductor brevis, adductor magnus, adductor hiatus

Question 36

What action do the muscles in the medial compartment primarily do?

Answer 36

adduct the thigh at the hip joint

Question 37

Gracilis: origins (2)

Answer 37

inferior pubic ramus, ramus of ischium

Question 38

Gracilis: insertion

Answer 38

medial surface of proximal tibia

Question 39

Gracilis: actions (2)

Answer 39

- adduct thigh at hip joint - flex the leg at knee joint

Question 40

Gracilis: innervation

Answer 40

obturator nerve

Question 41

Pectineus: origin

Answer 41

pectineal line

Question 42

Pectineus: insertion

Answer 42

pectineal line of femur

Question 43

Pectineus: actions (2)

Answer 43

- adduct thigh at hip joint - flex thigh at hip joint

Question 44

Pectineus: innervation

Answer 44

femoral nerve

Question 45

Adductor Longus: origin

Answer 45

external surface of pubis

Question 46

Adductor Longus: insertion

Answer 46

linea aspera on femur

Question 47

Adductor Longus: actions (2)

Answer 47

- adduct thigh at hip joint - medially rotate thigh at hip joint

Question 48

Adductor Longus: innervation

Answer 48

obturator nerve

Question 49

Adductor brevis: origins (2)

Answer 49

- external surface of pubis - inferior pubic ramus

Question 50

Adductor brevis: insertions (2)

Answer 50

- posterior surface of femur - upper 1/3 of linea aspera

Question 51

Adductor brevis: actions (2)

Answer 51

-adduct thigh at hip joint -medially roatte thigh at hip joint

Question 52

Adductor brevis: innervation

Answer 52

obturator neve

Question 53

What are the two parts to the adductor ramus?

Answer 53

adductor part and hamstring part

Question 54

Adductor magnus - adductor part: origin

Answer 54

ischiopubic ramus

Question 55

Adductor magnus - adductor part: insertions (3)

Answer 55

- posterior surface of proximal femur - linea aspera - medial supracondylar line

Question 56

Adductor magnus - adductor part: actions (2)

Answer 56

- adduct thigh at hip joint - medially rotate thigh at hip joint

Question 57

Adductor magnus - adductor part: innervation

Answer 57

obturator nerve

Question 58

Adductor magnus - hamstring part: origin

Answer 58

ischial tuberosity

Question 59

Adductor magnus - hamstring part: insertion

Answer 59

surpacondylar line

Question 60

Adductor magnus - hamstring part: actions (2)

Answer 60

- adduct thigh at hip joint - medially rotate thigh at hip joint

Question 61

Adductor magnus - hamstring part: innervation

Answer 61

sciatic nerve

Question 62

What are the bounderies of the femoral triangle? from lateral to medial (3)

Answer 62

sartorius - adductor longus and pectineus - inguinal ligament

Question 63

What are the contents of the femoral triangle ? (4)

Answer 63

Femoral Nerve, Femoral Arterie, Femroal Veine and Lymoh node (NAVL)

Question 64

What does the lymph node pass through in the femoral triangle?

Answer 64

the femoral canal

Question 65

What does the lymph node in the femoral triangle do?

Answer 65

drains lymph from lower limbs