Muscles of the Hip and Thigh - Origins & Insertions

Question 1

Iliacus

Answer 1

• O: iliac crest and iliac fossa; sacrum

* I: lesser trochanter (femur)

Question 2

Psoas major

Answer 2

• O: vertebrae
• I: lesser trochanter
• A: flexes thigh

Question 3

Rectus femoris

Answer 3

• O: Ilium
• I: tibial tuberosity (through patellar tendon and ligament)
• A: flexes thigh; extends leg

Question 4

Vastus lateralis`

Answer 4

• O: greater trochanter and linea aspera (femur)
• I: tibial tuberosity (through patellar tendon and ligament)
• A: extends leg

Question 5

Vastus intermedius

Answer 5

• O: femur
• I: tibial tuberosity (through patellar tendon and ligament)
• A: extends leg

Question 6

Vastus medialis

Answer 6

• O: linea aspera
• I: tibial tuberosity (through patellar tendon and ligament)
• A: extends leg

Question 7

Sartorius

Answer 7

o O: ilium
o I: tibia
o A: flexes thigh and leg; rotates thigh

Question 8

tensor fasciae latae

Answer 8

o O: iliac crest
o I: Iliotibial band
o A: flexes, abducts, and rotates thigh

Question 9

Gluteus maximus

Answer 9

o O: ilium; sacrum; coccyx
o I: femur; iliotibial band
o A: extends and rotates thigh

Question 10

Gluteus medius

Answer 10

o O: ilium
o I: greater trochanter
o A: abducts and rotates thigh

Question 11

Gluteus minimus

Answer 11

o O: ilium
o I: greater trochanter
o A: abducts and rotates thigh

Question 12

Biceps femoris

Answer 12

• O: ischial tuberosity; linea aspera
• I: tibia and fibula
• A: extends thigh; flexes leg

Question 13

Semitendinosus

Answer 13

• O: ischial tuberosity
• I: tibia
• A: extends thigh; flexes leg

Question 14

semimembranosus

Answer 14

• O: ischial tuberosity
• I: tibia
• A: extends thigh; flexes leg

Question 15

medial adductors

Answer 15

o O: coxa
o I: femur
o A: adduct the thigh

Question 16

lateral rotators

Answer 16

o O: coxa
o I: femur
o A: rotate the thigh

Question 17

What is the iliopsoas complex and what muscles are included?

Answer 17

Made of two muscles that share the same tendon for insertion. Muscles include:iliacus musclepsoas major

Question 18

What is the quadriceps femoris group and what muscles are included in it?

Answer 18

Group of four muscles that share the same tendon for insertion. Muscles include: Rectus femorisVastus lateralisVastus intermediusVastus medialis

Question 19

What muscles are included in the hamstring?

Answer 19

Biceps femorisSemitendinosusSemimembranosu

Question 20

What is the patellar tendon/ligament?

Answer 20

They are technically the same structure; specifically, the patellar tendon extends from the quadriceps femoris group to the patella while the patellar ligament extends from the patella to the tibial tuberosity.

Question 21

What does the patellar tendon extend from and to?

Answer 21

Extends from the quadriceps femoris group to the patella

Question 22

What does the patellar ligament extend from and to?

Answer 22

Extends from the patella to the tibial tuberosity