Anterior Thigh Muscles (Exam 2)

Question 1

Fascia lata divides the thigh muscles into ___ compartments (intermuscular septum)

Answer 1

3

Question 2

The saphaneous opening is covered with the __________ fascia of the lower limb

Answer 2

cribriform

Question 3

The iliotibial tract is a broad band of fibers shared aponeurosis of tensor fascia latae muscle and ______________ muscles and attaches to the __________________ of the tibia

Answer 3

gluteus maximus, anterolateral tubercle

Question 4

The _______ fascia of the leg (_______ fascia) is a continuation of the fascia lata of the thigh

Answer 4

deep, crural

Question 5

The deep fascia of the leg (crural fascia) is a continuation of the fascia lata of the thigh. Distally, it forms the….

Answer 5

superior and inferior extensor retinaculum

Question 6

The deep fascia of the leg (crural fascia) is a continuation of the fascia lata of the thigh. Distally, it forms the superior and inferior extensor retinaculum. It also gives rise to the _____________________ septa and ________________

Answer 6

anterior and posterior intermuscular, transverse intermuscular

Question 7

What is the origin/proximal attachment for the pectineus?

Answer 7

superior ramus of the pubis

Question 8

What is the insertion/distal attachment for the pectineus?

Answer 8

pectineal line of the femur, just inferior to the lesser trochanter

Question 9

What innervates the pectineus?

Answer 9

femoral n. and potentially obturator n.

Question 10

What are the actions of the pectineus?

Answer 10

-adducts and flexes thigh
-assists with medial rotation of the thigh

Question 11

Which muscle is known as the tailor’s muscle and is the longest muscle in the body?

test q

Answer 11

sartorius

Question 12

What is the origin/proximal attachment of the sartorius?

Answer 12

anterior superior iliac spine (ASIS) and superior part of the notch inferior to it

Question 13

What is the insertion/distal attachment of the sartorius?

Answer 13

superior part of the medial surface of the tibia

Question 14

What innervates the sartorius?

Answer 14

femoral n.

Question 15

What are the actions of the sartorius?

Answer 15

-flexes, abducts, and laterally rotates thigh at the hip joint
-flexes leg at the knee joint

Question 16

The 4 quadriceps femoris muscles are innervated by what nerve?

Answer 16

femoral n.

Question 17

What are the 4 muscles that make up the quadriceps femoris?

Answer 17

1) rectus femoris
2) vastus lateralis
3) vastus medialis
4) vastus intermedius

Question 18

The quadriceps is a __ joint muscle that _______ the leg

Answer 18

2, extends

Question 19

The quadriceps is important for what?

Answer 19

-rising from a sitting or squatting position
-climbing or walking upstairs
-acceleration and projection (running and jumping when lifting body weight)
-3x stronger than the hamstrings
-active during the termination of the swing phase and absorbs jarring shock of the heel strike

Question 20

The quadriceps distally form the quadriceps tendon where the patella ligament attaches to the….

Answer 20

tibial tuberosity

Question 21

What do the vastus lateralis and medialis form and what is its function?

Answer 21

-forms medial and lateral retinaculum
-reinforces the joint capsule
-keeps patella aligned

Question 22

What is the origin/proximal attachment of the rectus femoris?

Answer 22

anterior inferior iliac spine and ilium superior to acetabulum

Question 23

What is the insertion/distal attachment of the rectus femoris?

Answer 23

-via common tendinous (quadriceps tendon) and independent attachments to the base of the patella
-indirectly via patellar ligament to the tibial tuberosity

Question 24

What innervates the rectus femoris?

Answer 24

femoral n.

Question 25

What are the actions of the rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius?

Answer 25

-extend leg at knee joint -steady hip joint -help iliopsoas flex thigh

Question 26

What muscle is known as the "kicking muscle" test q

Answer 26

rectus femoris The rectus femoris is susceptible to injury and avulsion from the ASIS when kicking a ball hence the name "kicking muscle". It is also active during the preswing and initial swing phases of walking

Question 27

Which quadriceps femoris muscle is the only one to cross the hip joint? quiz 2 q

Answer 27

rectus femoris

Question 28

A loss of function to which muscle will reduce thigh flexion up to 17%?

Answer 28

rectus femoris

Question 29

Which one is the largest- vastus lateralis, vastus medialis, or vastus intermedius? test q

Answer 29

vastus lateralis

Question 30

What are the origins/proximal attachments of the vastus lateralis?

Answer 30

-greater trochanter of femur -lateral lip of the linea aspera of the femur

Question 31

What is the insertion/distal attachment for the vastus lateralis, vastus medialis, and vastus intermedius?

Answer 31

-via common tendinous (quadriceps tendon) and independent attachments to the base of the patella -indirectly via the patellar ligament to the tibial tuberosity -medial and lateral vasti also attach to tibia and patella via the aponeurosis (medial and lateral patellar retinacula)

Question 32

What innervates the vastus lateralis?

Answer 32

femoral n.

Question 33

What is the origin/proximal attachment of the vastus medialis?

Answer 33

intertrochanteric line and medial lip of the linea aspera of the femur

Question 34

What innervates the vastus medialis?

Answer 34

femoral n.

Question 35

What is the origin/proximal attachment for the vastus intermedius?

Answer 35

anterior and lateral surfaces of the shaft of the femur

Question 36

What innervates the vastus intermedius?

Answer 36

femoral n.

Question 37

Which muscle is a derivative of the vastus intermedius?

Answer 37

articularis genu

Question 38

What is the origin/superior attachment of the articularis genu?

Answer 38

inferior part of the anterior aspect of the femur

Question 39

What is the insertion/inferior attachment of the articularis genu?

Answer 39

to the synovial membrane of the knee joint and the wall of the suprapatellar bursa

Question 40

What innervates the articularis genu?

Answer 40

femoral n.

Question 41

What are the actions of the articularis genu?

Answer 41

pulls synovial membrane superior during extension of leg