Midterm Op Group 2

Question 1

What is the origin of the Sartorius muscle?

Answer 1

ASIS

Question 2

Where does the Sartorius muscle insert?

Answer 2

Proximal anteromedial tibia (pes anserine)

“Say Grace before Tea” (sartorius, gracilis, semitendinosus)

Question 3

What are the actions of the Sartorius muscle?

Answer 3

Flexion, abduction, and lateral rotation of the hip joint; anterior pelvic tilt

Question 4

What is the innervation of the Sartorius muscle?

Answer 4

Femoral nerve

Question 5

What is the origin of the Vastus Medialis muscle?

Answer 5

Medial lip of linea aspera (intertrochanteric line)

Question 6

Where does the Vastus Medialis muscle insert?

Answer 6

Tibial tuberosity (via common quad tendon and patellar ligament)

Question 7

What is the action of the Vastus Medialis muscle?

Answer 7

Extension of the knee

Question 8

What is the innervation of the Vastus Medialis muscle?

Answer 8

Femoral nerve

Question 9

What is the origin of the Pectineus muscle?

Answer 9

Pectineal line of pubis (superior pubic ramus)

Question 10

Where does the Pectineus muscle insert?

Answer 10

Pectineal line of femur (just below lesser trochanter on posterior aspect of femur)

Question 11

What are the actions of the Pectineus muscle?

Answer 11

Adduction and flexion of hip

Question 12

What is the innervation of the Pectineus muscle?

Answer 12

Femoral nerve and obturator nerve

Question 13

What is the origin of the Gracilis muscle?

Answer 13

Anterior body and inferior ramus of pubis

Question 14

Where does the Gracilis muscle insert?

Answer 14

Proximal anterior medial tibia (pes anserine)

Question 15

What are the actions of the Gracilis muscle?

Answer 15

Adduction and flexion of hip; flexion and medial rotation of knee

Question 16

What is the innervation of the Gracilis muscle?

Answer 16

Obturator nerve

Question 17

What is the origin of the Rectus Femoris muscle?

Answer 17

Anterior Head: ASIS; Posterior Head: superior rim of acetabulum

Question 18

Where does the Rectus Femoris muscle insert?

Answer 18

Tibial tuberosity (via common quad tendon and patellar ligament)

Question 19

What are the actions of the Rectus Femoris muscle?

Answer 19

Extension of the knee and hip flexion

Question 20

What is the innervation of the Rectus Femoris muscle?

Answer 20

Femoral nerve

Question 21

What is the origin of the Vastus Lateralis muscle?

Answer 21

Lateral lip of linea aspera (also intertrochanteric line and gluteal tuberosity)

Question 22

Where does the Vastus Lateralis muscle insert?

Answer 22

Tibial tuberosity (via common quad tendon and patellar ligament)

Question 23

What is the action of the Vastus Lateralis muscle?

Answer 23

Extension of knee

Question 24

What is the innervation of the Vastus Lateralis muscle?

Answer 24

Femoral nerve

Question 25

What is the origin of the Adductor Longus muscle?

Answer 25

Anterior surface of pubis ## Footnote

Question 26

Where does the Adductor Longus muscle insert?

Answer 26

Medial lip of linea aspera (middle 1/3) ## Footnote

Question 27

What are the actions of the Adductor Longus and Brevis muscles?

Answer 27

Adduction and flexion of hip ## Footnote

Question 28

What is the innervation of the Adductor Longus and Brevis muscles?

Answer 28

Obturator nerve ## Footnote

Question 29

What is the origin of the Adductor Magnus muscle?

Answer 29

Anterior head (adductor part): ischiopubic ramus; posterior head (hamstring part): ischial tuberosity ## Footnote

Question 30

Where does the Adductor Magnus muscle insert?

Answer 30

Anterior head: linea aspera; posterior head: adductor tubercle of femur (above medial epicondyle) ## Footnote

Question 31

What are the actions of the Adductor Magnus muscle?

Answer 31

Adduction and extension of the hip; anterior head: lateral rotation of thigh ## Footnote

Question 32

What is the innervation of the Adductor Magnus muscle?

Answer 32

Anterior head: obturator nerve; posterior head: sciatic nerve ## Footnote

Question 33

What is the origin of the Semitendinosus?

Answer 33

ischial tuberosity

Question 34

Where does the Semitendinosus insert?

Answer 34

Pes Anserine (proximal anterior medial tibia)

Question 35

What are the actions of the Semitendinosus?

Answer 35

flexion of knee, extension of hip ## Footnote medial rotation of knee when knee is flexed

Question 36

Which nerve innervates the Semitendinosus?

Answer 36

sciatic nerve

Question 37

When is the Semitendinosus tendon most palpable?

Answer 37

when knee is flexed against resistance

Question 38

What is the origin of the Long Head of the Biceps Femoris?

Answer 38

ischial tuberosity

Question 39

What is the origin of the Short Head of the Biceps Femoris?

Answer 39

lateral lip of linea aspera

Question 40

Where does the Biceps Femoris insert?

Answer 40

head of fibula

Question 41

What is the action of the Biceps Femoris?

Answer 41

flexion of knee (both long and short) extension of hip (long head only) Posterior pelvic tilt

Question 42

What nerve innervates the Biceps Femoris?

Answer 42

sciatic nerve