Thigh Muscles

Question 1

Origin of Semimembranosus

Answer 1

lateral ischial tuberosity

Question 2

Insertion of Semimembranosus

Answer 2

posterior medial tibial condyle

Question 3

Origin of Semitendinosus and long head of Biceps Femoris

Answer 3

medial ischial tuberosity

Question 4

Insertion of Semitendinosus

Answer 4

superior medial tibial shaft

Question 5

Insertion of Biceps Femoris

Answer 5

fibular head

Question 6

Origin of Short head of Biceps Femoris

Answer 6

lateral lip of linea aspera

Question 7

Innervation to all Hamstring muscles

Answer 7

Tibial branch of sciatic nerve (L4,L5,S1,S2,S3)

Question 8

Innervation to short head of Biceps Femoris

Answer 8

Common Fibular nerve (L4,L5,S1,S2)

Question 9

Action of the Hamstrings

Answer 9

Extend thigh, flex knee

Question 10

Action of short head of Biceps Femoris

Answer 10

Flexes the knee

Question 11

Origin of Adductor Magnus

Answer 11

inferior ischiopubic ramus

Question 12

Insertion of Adductor Magnus

Answer 12

Medial lip of linea aspera, adductor tubercle

Question 13

Innervation of adductor part of Adductor muscles

Answer 13

Obturator Nerve (L2,L3,L4)

Question 14

Action of Adductor muscles

Answer 14

Adduct and flex thigh

Question 15

Innervation of Pectineus

Answer 15

Femoral nerve (L2,L3,L4)

Question 16

Innervation to Anterior Compartment

Answer 16

Femoral nerve (L2,L3,L4)

Question 17

Origin of Pectineus

Answer 17

Superior pubic rami

Question 18

Insertion of Pectineus

Answer 18

Pectineal line

Question 19

Origin of Gracilis

Answer 19

Posterior Pubic Symphysis

Question 20

Insertion of Gracilis

Answer 20

Medial tibial shaft

Question 21

Origin of Obturator Externus

Answer 21

external obturator membrane and anteriorr obturator foramen

Question 22

Insertion of Obturator Externus

Answer 22

Tucked nicely in the posterior medial suface of greater trochanter

Question 23

Origin of Sartorius

Answer 23

ASIS

Question 24

Insertion of Sartorius

Answer 24

Medial tibial shaft

Question 25

Action of Sartorius

Answer 25

Extends knee, flexes thigh

Question 26

Action of Obturator Externus

Answer 26

Laterally rotates thigh, helps in abduction

Question 27

Action of Pectineus

Answer 27

Adducts and flexes thigh

Question 28

Action of Gracilis

Answer 28

Flexes knee, adducts thigh

Question 29

Origin of Tensor Facia Lata

Answer 29

ASIS

Question 30

Insertion of Tensor Facia Lata

Answer 30

Iliotibial tract

Question 31

Innervation of Tensor Facia Lata

Answer 31

Superior Gluteal Nerve (L4,L5,S1)

Question 32

Action of Tensor Facia Lata

Answer 32

Stabilise Knee

Question 33

Origin of Iliacus

Answer 33

Internal lip of iliac crest

Question 34

Origin of Psoas Major

Answer 34

L1-L5 transverse processes, bodies of T12-L5

Question 35

Insertion of illiapsoas

Answer 35

Lesser trochanter

Question 36

Innervation of Iliacus

Answer 36

Femoral nerve (L2,L3,L4)

Question 37

Innervation of Psoas Major

Answer 37

Direct fibres

Question 38

Action of iliapsoas

Answer 38

Flex torso and thigh

Question 39

Medial Rotator of Thigh

Answer 39

Gluteus Minimus, Gluteus Medius

Question 40

Lateral Rotators

Answer 40

Gluteus Medius, Piriformis, Obturator Internus and Externus, Gemelli, Quadratus Femoris

Question 41

Action of Anterior Compartment

Answer 41

Extend Knee

Question 42

Origin of Rectus Femorus

Answer 42

AIIS and Superior acetabulum

Question 43

Origin of Vastus Lateralis

Answer 43

Inferior border of greater trochanter, Superior portion of lateral lip of linea aspera

Question 44

Origin of Vastus Intermedius

Answer 44

Anterior femur

Question 45

Origin of Vastus Medialis

Answer 45

Posterior lesser trochanter and medial lip pf linea aspera (lateral to adductor insertions)

Question 46

Insertion of anterior compartment

Answer 46

Quadriceps tendon

Question 47

Origin of Adductor Longus

Answer 47

Superior pubic symphysis

Question 48

Insertion of Adductor Longus

Answer 48

Medial lip of Linea aspera, inferior to brevis, lateral to magnus, medial to vastus medialis

Question 49

Origin of Adductor Brevis

Answer 49

Posterior to Pubic Tubercle

Question 50

Insertion of Adductor Brevis

Answer 50

Pectineal Line and medial lip of linea aspera, lateral to magnus