Muscles of the Hip, Knee, and Lower Leg

Question 1

Concentric Contractions

Answer 1

involved muscle developing tension as it shortens; against gravity

Question 2

Eccentric Contractions

Answer 2

involve the muscle lengthening under tension; slow with gravity

Question 3

Isometric contraction

Answer 3

tension is developed within muscle but joint angles remain constant; static contractions

Question 4

Agonist Muscles

Answer 4

primary or prime movers, or muscles most involved

Question 5

Antagonist muscles

Answer 5

located on opposite side of joint from agonist; work in cooperation with agonist muscles by relaxing & allowing movement; when contracting concentrically perform the opposite joint motion of agonist

Question 6

Gastrocnemius muscle

Answer 6

plantar flexion of ankle, flexion of knee

Question 7

Soleus Muscle

Answer 7

plantar flexion of ankle

Question 8

Peroneus Longus Muscle

Answer 8

Eversion of foot, plantar flexion of ankle

Question 9

Peroneus Brevis

Answer 9

eversion of foot, plantar flexion of ankle

Question 10

Peroneus Tertius

Answer 10

Eversion of foot, Dorsiflexion of ankle

Question 11

Extensor Digitorum Longus

Answer 11

Extension of four lesser toes, dorsiflexion of ankle, eversion of foot

Question 12

Extensor Hallucis Longus

Answer 12

Dorsiflexion of ankle, extension of great toe, weak inversion of foot

Question 13

Tibialis Anterior

Answer 13

*shin splint muscles* Dorsiflexion of anke, inversion of foot

Question 14

Tibialis Posterior

Answer 14

Plantar flexion of ankle, Inversion of foot

Question 15

Flexor Digitorum Longus

Answer 15

Flexion of 4 lesser toes, inversion of foot, plantar flexion of ankle

Question 16

Flexor Hallucis Longus

Answer 16

Flexion of great toe, Inversion of foot, Plantar flexion of ankle

Question 17

Agonists of Ankle Dorsiflexion

Answer 17

Tibialis anterior, Extensor digitorum longus, peroneus tertius, extensor hallucis longus

Question 18

Agonists of Ankle Plantarflexion

Answer 18

Gastrocnemius, Soleus, Flexor Digitorum Longus, Flexor Hallucis Longus, Peroneous Longus, Peroneus Brevis, Plantaris, Tibialis Posterior

Question 19

Agonists of Transverse Tarsal and Subtalar Inversion

Answer 19

Tibialis Anterior, Tibialis Posterior, Flexor DIgitorum Longus, Flexor Hallucis Longus

Question 20

Agonists of Transverse Tarsal and Subtalar Eversion

Answer 20

Peroneus longus, Peroneus brevis, Peroneus tertius, extensor digitorum longus

Question 21

Agonists of Toe Flexion

Answer 21

Flexor Hallucis longus, flexor digitorum longus

Question 22

Agonists of Toe Extension

Answer 22

Extensor hallucis longus, extensor digitorum longus

Question 23

Rectus Femoris

Answer 23

flexion of hip, extension of knee, anterior pelvic rotation *Quad

Question 24

Vastus Lateralis

Answer 24

Extension of knee *Quad

Question 25

Vastus Intermedius

Answer 25

Extension of knee \*Quad

Question 26

Vastus Medialis

Answer 26

Extension of knee \*Quad

Question 27

Semitendinosus

Answer 27

Flexion of knee, extnesion of hip, internal rotation of hip, internal rotation of flexed knee, posterior pelvic rotation \*hamstring

Question 28

Semimembranosus

Answer 28

flexion of knee, Extension of hip, internal rotation of hip, intrernal rotation of flexed knee, posterior pelvic rotation \*hamstring

Question 29

Biceps Femoris

Answer 29

Flexion of knee, extension of hip, external rotation of hip, external rotation of flexed knee, posterior pelvic rotation \*hamstring

Question 30

Popliteus

Answer 30

Flexion of knee, Internal rotation of flexed knee

Question 31

Agonists of knee Extension

Answer 31

rectus femoris, vastus lateralis, vastus intermedius, vastus medialis

Question 32

Agonists of knee flexion

Answer 32

Biceps femoris, semitendinosus, semimembranosus

Question 33

Agonists of Knee internal rotation

Answer 33

semitendinosus, semimembranosus, popliteus

Question 34

Agonists of knee external rotation

Answer 34

Biceps femoris

Question 35

Iliopsoas

Answer 35

Hip flexion, hip abduction

Question 36

Sartorius

Answer 36

hip flexion, hip abduction, hip external rotation

Question 37

Gluteus maximus

Answer 37

Hip extension, Hip external rotation

Question 38

Gluteus Medius and Minimus

Answer 38

Hip adduction, hip internal rotation

Question 39

Tensor Fasciae Latae

Answer 39

Hip abduction, Hip flexion, Hip internal rotation

Question 40

Adductor longus

Answer 40

hip adduction, hip flexion

Question 41

adductor brevis

Answer 41

hip adduction, hip flexion

Question 42

adductor magnus

Answer 42

hip adduction, hip extension

Question 43

Pectineus

Answer 43

Hip adduction, hip flexion

Question 44

Gracilis

Answer 44

Hip adduction, hip flexion

Question 45

Agonists of Hip flexion

Answer 45

Iliopsoas, Rectus femoris, Sartorius

Question 46

Agonists of Hip Extension

Answer 46

Gluteus maximus, biceps femoris, semitendinosus, semimembranosus

Question 47

Agonists of Hip Abduction

Answer 47

Gluteus medius, gluteus minimus, tensor fasciae latae

Question 48

agonists of hip adduction

Answer 48

adductor longus, adductor brevis, adductor magnus, pectineus, gracilis