Lab Exam 3 (The hip, knee, and the ankle)

Question 1

Sartorius

Answer 1

Origin- Anterior superior iliac spine
Insertion- medial condyle of the tibia
Action- hip flexion; hip abduction; hip external rotation; knee flexion

Question 2

Iliacus

Answer 2

Origin- iliac fossa
Insertion- lesser trochanter of the femur
Action- flexes hip

Question 3

Psoas Major

Answer 3

Origin- T12-L5 transverse processes
Insertion- lesser trochanter of the femur
Action- flexes hip

Question 4

Pectineus

Answer 4

Origin- Pubic bone
Insertion- Lesser trochanter of the femur
Action- adducts, flexes, and medially rotates the hip

Question 5

Adductor Magnus

Answer 5

Origin- ischial tuberosity of the ischium; pubic bone
Insertion- linea aspera and adductor tubercle of the femur
Action- adducts, flexes, and medially rotates to the hip

Question 6

Adductor Longus

Answer 6

Origin- pubic bone
Insertion- linea aspera of the femur
Action- adducts, flexes and medially rotates the hip

Question 7

Adductor Brevis

Answer 7

Origin- pubic bone
Insertion- linea aspera of the femur
Action- adducts, flexes, and medially rotates the hip

Question 8

Gracilis

Answer 8

Origin- pubic bone
Insertion- medial condyle of the tibia
Action- adducts, flexes, and medially rotates the hip

Question 9

Tensor Fasciae Latae

Answer 9

Origin- iliac crest and anterior superior iliac spine of the ilium
Insertion-Lateral condyle of the tibia via iliotibial band
Action- abducts hip

Question 10

Gluteus Maximus

Answer 10

Origin- Ilium, sacrum, and coccyx
Insertion- Linea aspera of femur, lateral condyle of tibia
Action- Extends hip

Question 11

Gluteus Medius

Answer 11

Origin- Posterior Ilium
Insertion- greater trochanter of femur
Action- Abducts hip

Question 12

Gluteus Minimus

Answer 12

Origin- posterior ilium
Insertion- greater trochanter of femur
Action- abducts hip

Question 13

Piriformis

Answer 13

Origin- Sacrum
Insertion- greater trochanter of femur
Action- Laterally rotates hip

Question 14

Rectus Femoris

Answer 14

Origin-anterior inferior iliac spine
Insertion- tibial tuberosity
Action- flexes hip; extends knee

Question 15

Vastus Lateralis

Answer 15

Origin- greater trochanter and linea aspera of femur
Insertion- tibial tuberosity
Action- extends knee

Question 16

Vastus Intermedius

Answer 16

Origin- Anterior-lateral shaft of the femur
Insertion- tibial tuberosity
Action- extends knee

Question 17

Vastus Medialis

Answer 17

Origin-linea aspera of femur
Insertion- tibial tuberosity
Action- extends knee

Question 18

Biceps Femoris

Answer 18

Origin- Ischial tuberosity of ischium, linea aspera of femur
Insertion- lateral condyle of tibia, head of fibula
Action- extends hip, flexes knee

Question 19

Semitendinosus

Answer 19

Origin- ischial tuberosity of ischium
Insertion- medial condyle of tibia
Action- extends hip, flexes knee

Question 20

Semimembranosus

Answer 20

Origin- ischial tuberosity of ischium
Insertion- medial condyle of tibia
Action- extends hip, flexes knee

Question 21

Tibialis Anterior

Answer 21

Origin- Proximal anterior-lateral tibia
Insertion- plantar surface of the medial foot
Action- dorsiflexes and inverts ankle

Question 22

Extensor Hallucis Longus

Answer 22

Origin- Anterior fibula
Insertion- Dorsal surface of distal phalanges
Action- extends hallux; dorsiflexes ankle

Question 23

Extensor Digitorum Longus

Answer 23

Origin- Anterior fibula
Insertion- Dorsal Surface of distal phalanges
Action- extends toes, dorsiflexes ankle

Question 24

Fibularis (peroneus) Longus

Answer 24

Origin- head of fibula
Insertion- plantar surface of the first metatarsal
Action- everts and plantar flexes ankle

Question 25

Fibularis (peroneus) Brevis

Answer 25

Origin- fibula Insertion- proximal portion of the fifth metatarsal Action- everts and plantar flexes ankle

Question 26

Gastrochemius

Answer 26

Origin- Lateral and medial condyle of femur Insertion- calcaneus Action- flexes knee; plantar flexes ankle

Question 27

Soleus

Answer 27

Origin- Posterior tibia and fibula Insertion- calcaneus Action- plantarflexes ankle

Question 28

Tibialis Posterior

Answer 28

Origin- posterior tibia and fibula Insertion- Navicular bone; all cuneiform bones Action- inverts and plantarflexes ankle

Question 29

Flexor Digitorum Longus

Answer 29

Origin- posterior tibia and fibula Insertion- plantar suface of distal phalanges Action- flexes toes; inverts and plantarflexes ankle

Question 30

Flexor Hallucis Longus

Answer 30

Origin- posterior tibia and fibula Insertion- plantar surface of distal phalanges Action- Flexes hallux; inverts and plantarflexes ankle