Anterior and Medial Thigh

Question 1

What is the insertion of ALL quadriceps muscles?

Answer 1

Base of patella

Question 2

What is the origin of the rectus femoris m.?

Answer 2

Anterior inferior iliac spine

Question 3

What is the origin of the vastus intermedialis m. ?

Answer 3

Anterior and lateral surfaces of femoral body

Question 4

What is the origin of the vastus medialis m.?

Answer 4

Intertrochanteric line and linea aspera of femur

Question 5

What is the origin of the vastus lateralis m.?

Answer 5

Greater trochanter of lateral lip of femur

Question 6

What is the function of ALL quadriceps muscles?

Answer 6

Extend leg at knee joint

Rectus femoris also helps in thigh flexion

Question 7

What is the innervation for ALL quadriceps muscles?

Answer 7

Femoral n.

Question 8

What is the blood supply for ALL quadriceps muscles?

Answer 8

Lateral circumflex femoral a. (remember that this is a branch of the profunda femoral a.*)

Question 9

What subgroups of muscles make up the iliopsoas m.?

Answer 9

Psoas major m., Psoas minor m. , Iliacus m.

Question 10

What is the origin of the psoas major m.

Answer 10

T12-L5 transverse processes

Question 11

What is the insertion of the psoas major m.

Answer 11

Lesser trochanter of femur

Question 12

What is the action of the iliopsoas m.

Answer 12

Flex thigh @ hip

Question 13

What is the innervation of both psoas major m. and psoas minor m. ?

Answer 13

Lumbar n.

Question 14

What is the blood supply of the iliopsoas muscles?

Answer 14

Lumbar branch of iliopsoas branch of internal iliac a.

Question 15

What is the origin of the psoas minor m.

Answer 15

T2-L1 transverse processes

Question 16

What is the insertion of the psoas minor m

Answer 16

Pectinal line/Iliopectinal eminence

Question 17

What is the origin of the iliacus m. ?

Answer 17

Iliac crest, ala of sacrum, anterior sacroiliac ligaments

Question 18

What is the insertion of the iliacus m. ?

Answer 18

Tendon of psoas major m.

Question 19

What is the innervation of the iliacus m.?

Answer 19

Femoral n.

Question 20

What is the origin of the sartorius m.?

Answer 20

ASIS

Question 21

What is the insertion of the sartorius m. ?

Answer 21

Per Aserinus

Question 22

What is the action of the sartorius m. ?

Answer 22

Flex, aBduct, laterally rotate thigh, flex leg

Question 23

What innervates the sartorius m. ?

Answer 23

Femoral n.

Question 24

What supplies the sartorius m.

Answer 24

Femoral a.

Question 25

The thigh has three compartments-what are they?

Answer 25

Anterior, medial, posterior

Question 26

What is located in the anterior compartment if the thigh?

Answer 26

Quadriceps muscles (Vastus medialis, lateralis, intermedialis, rectus femoris), IT band, femoral n.

Question 27

What separates the anterior and posterior compartments of the thigh?

Answer 27

Lateral intermuscular septum

Question 28

What is located in the posterior compartment of the thigh?

Answer 28

``` Sciatic n. Biceps femoris m. Semimembranosus m. Semitendinosis m. ADductor magnus m. Gracilis m. ```

Question 29

What is located in the medial compartment of the thigh?

Answer 29

``` ADductor longus m. ADductor brevis m. Sartorius m. Femoral a. Femoral vein Deep artery and vein of the thigh ```

Question 30

What separates the anterior and medial compartments of the thigh?

Answer 30

Medial intermuscular septum

Question 31

What are the ADductor muscles?

Answer 31

``` Pectineus m. ADductor longus m. ADductor brevis m. ADductor magnus m. Gracilis m. (only adductor to cross knee joint) ```

Question 32

What is the origin of the pectineus m. ?

Answer 32

Superior pubic ramus

Question 33

What is the insertion of the pectineus m. ?

Answer 33

Pectineal line on femur

Question 34

What is the action of the pectineus m. ?

Answer 34

ADduct and flex thigh

Question 35

What is the innervation of the pectineus m.?

Answer 35

Femoral n.

Question 36

What is the origin of the adductor longus m. ?

Answer 36

Inf to pubic crest

Question 37

What is the insertion of the adductor longus m. ?

Answer 37

Middle 1/3 of linea aspera (on medial shaft of femur)

Question 38

What is the action of the adductor longus m. ?

Answer 38

Adduct thigh

Question 39

What is the innervation of the adductor longus m. ?

Answer 39

Obturator n.

Question 40

What is the origin of the adductor brevis m. ?

Answer 40

Inf to pubic ramus

Question 41

What is the insertion of the adductor brevis m. ?

Answer 41

Pectineal line and proximal linea aspera

Question 42

What is the action of the adductor brevis m. ?

Answer 42

Adduct thigh

Question 43

What is the innervation of the adductor brevis m. ?

Answer 43

Obturator n.

Question 44

What is the origin of the adductor magnus m. ?

Answer 44

Ischiopubic ramus and ischial tuberosity

Question 45

What is the insertion of the adductor magnus m. ?

Answer 45

Gluteal tuberosity

Question 46

What is the action of the adductor magnus m. ?

Answer 46

UP: Flex thigh Low: Extend thigh

Question 47

What innervates the adductor magnus? Two nerves!

Answer 47

Upper: Obturator n. Lower: Tibial division of the sciatic n.

Question 48

What is the origin of the gracilis m.?

Answer 48

Inf pubic ramus/ body of pubis

Question 49

What is the insertion of the gracilis m. ?

Answer 49

Med aspect proximal tibia

Question 50

What is the action of the gracilis m.?`

Answer 50

ADduct and medially rotate thigh; flex leg

Question 51

What is the innervation of the gracilis m.?

Answer 51

Obturator n. (anterior division)

Question 52

What are the boundaries of the adductor canal?

Answer 52

Lateral border: Vastus medialis m. Anterior border: Sartorius m. Posterior border: Adductor longus and adductor magnus ms.

Question 53

What are the contents of the adductor canal?

Answer 53

Femoral a.-becomes popliteal artery upon exiting Femoral n. -becomes popliteal vein upon exiting N to vastus medialis Saphenous n.

Question 54

What is a possible cause of a groin tear and which muscles are commonly affected?`

Answer 54

Strain, stretching, tearing of anteromedial thigh muscles Flexor and adductor muscles of thigh ) insertions found in the inguinal region

Question 55

What is a hip pointere? What causes it?

Answer 55

Contusion of iliac crest; contact sports

Question 56

Why is a hip contusion potentially dangerous?

Answer 56

Ruptured capillaries can bleed into muscles, tendons, and other soft tissues

Question 57

What is an avulsion fracture? Give an example.

Answer 57

Avulsion of bony muscle attachments EX: Sartorius or rectus femoris to anterior superior iliac spines of hamstring of ischium ***

Question 58

What causes a charly horse?

Answer 58

Tearing of fibers of the rectus femoris?

Question 59

What is a psoas abscess and what causes it?

Answer 59

TB or secondary to Chron's Abscess passing between psoas and fascia to inguinal and proximal thigh regions May be mistaken for femoral or indirect inguinal hernia

Question 60

Paralysis of quadriceps | What occurs?

Answer 60

Can't extend leg against resistance Walk on distal end of thigh to prevent flexion at knee joint Weakness of vastus medialis or lateralis can cause abnormal patellar movement and joint instability

Question 61

What causes Chondromalacia patellae/Runner's knee? (Anatomically speaking)

Answer 61

Quadriceps imbalance Blow to patella Extreme flexion of knee

Question 62

What causes a transverse patellar fracture?

Answer 62

Blow to knee | Sudden contraction of quadriceps (trying to catch yourself when you fall backwards)

Question 63

What happens physiologically w/ transverse patellar fracture?

Answer 63

Proximal patella pulled superiorly w/ quadriceps | Distal patella remains w/ patellar ligament