ANTERIOR THIGH MUSCLES

Question 1

collective name for the rectus femoris and the three vastus muscles**

Answer 1

quadriceps

Question 2

􀁸 names means tailor in Latin
􀁸 it is a narrow, superficial muscle, which happens to be the longest muscle in the body
􀁸 it passes obliquely downward and medial across the anterior aspect of the thigh

Answer 2

Sartorius

Question 3

Sartorius origin

Answer 3

anterior superior iliac spine

Question 4

Sartorius insertion

Answer 4

superior medial shaft/tibia

Question 5

Sartorius actions

Answer 5

Flexion at the hip joint and knee joint (functions when both are carried out at the same time)


Abducts and laterally rotates the femur



medially rotates the leg

Question 6

this group of muscles occupy the anterior aspect of the femur and are divided into separate parts

Answer 6

Quadriceps Femoris

Question 7

Quadriceps Femoris, these four muscles have a common tendon of insertion on to the

Answer 7

base of the patella

Question 8

the portion of the tendon of insertion which runs from the apex of the patella to the tibia is known as the

Answer 8

patellar ligament

Question 9

the most superficial of the quadriceps and is situated in the middle of the thigh between the vastus
lateralis and vastus medialis, superficial to the vastus intermedius

Answer 9

Rectus Femoris

Question 10

Rectus Femoris origin

Answer 10

anterior inferior iliac spine

acetabulum/pelvic bone

Question 11

the largest of the quadriceps muscles and forms a broad, fleshy mass on the thigh

Answer 11

Vastus Lateralis

Question 12

Vastus Lateralis origin

Answer 12

linea aspera/femur

Question 13

deep to the other quadriceps and covers most of the anterior aspect of the femur

Answer 13

Vastus Intermedius

Question 14

􀁸 occasionally a distinct bundle of muscle fibers separates from the deepest layers of the vastus
intermedius and become a separate muscles known as the**

Answer 14

articularis genu

which attaches to the synovial membrane of the knee joint

Question 15

Vastus Intermedius origin

Answer 15

anterior-lateral aspect and line aspera/femur

Question 16

Actions of the Quadriceps

all muscles

Answer 16

Extend the leg at the knee joint



Tonus of the muscle plays a role in strengthening the knee joint

Question 17

Actions of the Quadriceps

when the rectus femoris is also involved with**

Answer 17

Flexes the femur at the hip joint

Question 18

Actions of the Quadriceps

when the articularis genu is present it is involved with**

Answer 18

Retracts the synovial membrane of the knee joint to help stabilize the knee

Question 19

will have difficulty extending their leg against resistance and
will usually press on the distal end of the femur during walking to prevent flexion from occurring at the
knee joint

weakness of the muscle can also result in abnormal patellar movements and loss of joint mobility

Answer 19

Atrophy of the Quadriceps

Question 20

with the patient lying down or sitting with their legs flexed at the knee joint, the
patient is asked to extend their knee against resistance

Answer 20

quadriceps are tested

with atrophy of the muscles, the patient will have difficult carrying out extension at the knee joint

Question 21

􀁸 a term used to indicate a cramping or spasm of the quadriceps
􀁸 the term is also used to indicate trauma to the muscles, which can cause a tearing of muscle fibers and
lead to the formation of a painful hematoma and bruising

Answer 21

Charley Horse

Question 22

􀁸 a painful overuse injury of the common tendon of insertion of the quadriceps and/or the patellar ligament
􀁸 common in individuals who participate in activities where there is continuous jumping or running (i.e.
aerobics, jogging, basketball, volleyball, soccer)
􀁸 individuals will complain of pain and soreness in the area of the common tendon or patellar ligament and
this pain is intensified with activity

Answer 22

Jumper’s Knee (Patellar Tendonitis)

Question 23

is carried out by tapping the patellar ligament and is used to test for the segmental innervation of L2, L3
and L4**

Answer 23

Patellar Reflex*