Anterior and Medial Thigh

Question 1

Nerve Roots: Femoral Nerve

Answer 1

L2-L4

Question 2

Nerve Roots: Obturator Nerve

Answer 2

L2-L4

Question 3

Nerve Roots: Sciatic Nerve

Answer 3

L4-S3

Question 4

Nerve Roots: Tibial Nerve (from Sciatic Nerve)

Answer 4

L4-S3

Question 5

Nerve Roots: Common Fibular Nerve

Answer 5

L4-S2

Question 6

illiopsoas m.: Origin

Answer 6

Lateral portion of centra/bodies of T12-L5

Question 7

illiopsoas m.: Insertion

Answer 7

Lesser trochanter

Question 8

illiacus m.: Innervation

Answer 8

Femoral nerve

Question 9

Psoas major m.: Innervation

Answer 9

L1-L3 ventral rami

Question 10

Psoas minor: Innervation

Answer 10

L1-L2 ventral rami

Question 11

iliopsoas m.: Action

Answer 11

Chief flexor of the thigh

Question 12

Sartorius m. : Origin

Answer 12

ASIS

Question 13

Sartorius m. : Insertion

Answer 13

Pes Anserinus

Question 14

Sartorius m. : Innervation

Answer 14

Femoral nerve

Question 15

Sartorius m. : Functions

Answer 15

• Flex, abduct, laterally rotate thigh
• flex leg

(longest muscle)

Question 16

What three tendons are a part of Pes Anserinus?

Answer 16

• Sartorius tendon
• Gracilis tendon
• Semitendinosus tendon

Question 17

Quadriceps Femoris M. : Origin

Answer 17

• Rectus femoris= AIIS

- Vasti= Shaft of femur

Question 18

Quadriceps Femoris M.: Insertion

Answer 18

All quads = tibial tuberosity

Question 19

Quadriceps Femoris M.: Functions

Answer 19

• Vasti extend leg
• Rectus extends leg and flexes thigh
• Chief extensors of the leg
• Rectus Femoris also assists in flexion of the thigh

Question 20

Quadriceps Femoris M.: Innervation

Answer 20

Femoral nerve

Question 21

Pectineus M. :Origin

Answer 21

Pecten line of pubis

Question 22

Pectineus M. : Insertion

Answer 22

Pectineal line (inferior to lesser trochanter)

Question 23

Pectineus M. : Innervation

Answer 23

Femoral nerve (occasionally a branch from the obturator n.)

Question 24

Pectineus M. : Functions

Answer 24

Adduct and flex thigh

Question 25

Adductor Longus M.: Origin

Answer 25

Body of pubis (inferior to pubic crest)

Question 26

Adductor Longus M.: Insertion

Answer 26

Middle 1/3 of linea aspera

Question 27

Adductor Longus M.: Innervation

Answer 27

Obturator nerve (L2-L4)

Question 28

Adductor Longus M.: Functions

Answer 28

Adducts and flexes thigh

Question 29

Gracilis M. : Origin

Answer 29

Pubis body & inferior ramus

Question 30

Gracilis M. : Insertion

Answer 30

Superior part of medial surface of tibia (Part of pes anserinus)

Question 31

Gracilis M. : Innervation

Answer 31

Obturator nerve

Question 32

Gracilis M. : Functions

Answer 32

- Adduct thigh | - Flex and medially rotate leg

Question 33

Adductor Brevis M.: Origin

Answer 33

Pubis body & inferior ramus

Question 34

Adductor Brevis M.: Insertion

Answer 34

Proximal linea aspera

Question 35

Adductor Brevis M.: Innervation

Answer 35

Obturator nerve

Question 36

Adductor Brevis M.: Functions

Answer 36

Adducts and flexes thigh

Question 37

Obturator Externus M.: Origin

Answer 37

External margins of obturator foramen

Question 38

Obturator Externus M.: Insertion

Answer 38

Trochanteric fossa

Question 39

Obturator Externus M.: Innervation

Answer 39

Obturator nerve

Question 40

Adductor Magnus M. : Origins

Answer 40

- Hamstring part = Ischial tuberosity | - Adductor part= Ischiopubic ramus

Question 41

Adductor Magnus M. : Insertion (Adductor part)

Answer 41

Gluteal tuberosity, linea aspera, medial supracondylar line

Question 42

Adductor Magnus M. : Nerve (Adductor part)

Answer 42

Obturator nerve

Question 43

Adductor Magnus M. : Functions (Adductor part)

Answer 43

Adducts and flexes thigh

Question 44

Adductor Magnus M. : Insertion (Hamstring part)

Answer 44

Adductor tubercle (medial epicondyle)

Question 45

Adductor Magnus M. : Innervation (Hamstring part)

Answer 45

Tibial division of sciatic nerve

Question 46

Adductor Magnus M. : Functions (Hamstring part)

Answer 46

Adducts and extends thigh

Question 47

Obturator Externus M.: Function

Answer 47

Lateral rotator of the thigh