Muscles Of The Lower Limb

Question 1

Iliopsoas

What is it?

Answer 1

Flexors of the hip

Question 2

Mention the 3 muscles found in the iliopsoas

Answer 2

1) psoas major
2) psoas minor
3) iliacus

Question 3

Which muscle is involved in maintaining upright posture?

Answer 3

Psoas major

Question 4

What do the gluteal muscles do?

Answer 4

Extend and rotate the hip

Question 5

Mention the 3 gluteal muscles

Answer 5

1) gluteus maximus
2) gluteus medius
3) gluteus minimus

Question 6

Tensor fascia latae

Answer 6

Lateral hip muscle - frequently visible and palpable flexor and medial rotator of the hip joint.

Inserts into this fibrous band, tensing it.

Question 7

Mention the 6 deep lateral rotator muscles

Answer 7

1) Piriformis
2) Obturator internus
3) Obturator externus
4) Quadratus femoris
5) Gemellus superior
6) Gemellus inferior

Question 8

What does the quadriceps femoris do?

Answer 8

Extends the knee joint and help stabilize the knee

Global mobilizers

Question 9

What does the sartorius muscle do?

Answer 9

Flexes the knee and hip

Question 10

Mention the four heads of the quadriceps femoris

Answer 10

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

Question 11

Mention the Medial thigh muscles

Answer 11

1) adductors
Adductor brevis
Adductor longus
Adductor magnus

2) gracilis

3) pectineus

4) obturator externus

Question 12

What do the medial thigh muscles do?

Answer 12

Adduct & rotate the hip

Question 13

Posterior thigh - what do the hamstrings do?

Answer 13

Knee flexion & thigh extension

Question 14

Mention the 3 hamstring muscles

Answer 14

1) semimembranosus (medial)
2) semitendinosus
3) biceps femoris (lateral)

Question 15

What do the Muscles of the anterior lower leg do?

Answer 15

Dorsiflex the ankle

Question 16

Mention the muscles of the anterior lower leg

Answer 16

1) tibialis anterior
2) extensor digitorum longus - extends toe 2-5
3) extensor hallucis longus - extends big toe
4) Fibularis (peroneus) tertius

Question 17

What do the muscles of the lower lateral leg do?

Answer 17

Plantarflex and evert the foot while stabilizing the ankle

Question 18

Mention the two muscles of the lower lateral leg

Answer 18

1) fibularis (peroneus) longus
2) fibularis (peroneus) brevis

Question 19

What do the superficial lower posterior muscles do?

Answer 19

Plantarflex the foot

Question 20

Mention the superficial lower posterior muscles

Answer 20

1) gastrocnemius (activated when rising on heels)
2) soleus (activated when knee is bent and heels are raised like foot series)
3) plantaris
4) achillis tendon

Question 21

What do the deep muscles of the posterior leg do?

Answer 21

Plantarflex and invert the foot

Question 22

Mention the 4 deep muscles of the lower posterior leg

Answer 22

1) popliteus - rotates the leg
2) tibialis posterior
3) flexor digitorum longus - flex toes
4) flexor hallucis longus - flex toes

Question 23

What do the dorsum or extensor muscles of the foot do?

Answer 23

Extend toes

Question 24

Mention the dorsal surface muscles

Answer 24

1) extensor digitorum brevis
2) extensor hallucis brevis

Question 25

Mention the plantar layer 1 muscles of the foot

Answer 25

Flex & abduct toes 1) abductor hallucis 2) abductor digiti minimi 3) flexor digitorum brevis

Question 26

Mention the 2nd layer of the foot

Answer 26

1) quadratus plantae 2) lumbricals

Question 27

Mention the muscles of the third plantar layer of the foot

Answer 27

1) flexor hallucis brevis 2) adductor hallucis 3) flexor digiti minimi brevis 4) opponens digiti minimi

Question 28

Mention the muscles of 4th layer of the foot (deepest?

Answer 28

- plantar interossei - dorsal interossei

Question 29

VMO

Answer 29

Vastus Medialis Oblique Muscles that straighten and stabilize the knee

Question 30

What muscles are used for hip flexion?

Answer 30

PSOAS Rectus femoris Iliacus Pectineus Sartorius

Question 31

What muscles are use for shoulder flexion?

Answer 31

- Anterior Deltoid - coracobrachialis - pectoralis major

Question 32

Muscles used in knee extension

Answer 32

Quadriceps group (Rectus femoris, vastus lateralis, vastus intermedius, vastus medialis)

Question 33

What muscles are used in radial deviation?

Answer 33

Carpi radialis

Question 34

Muscles used in shoulder abduction

Answer 34

Supraspinatus Deltoid Trapezius Serratus anterior

Question 35

Muscles used in external rotation

Answer 35

- Gluteus max & medius - piriformis - gemellus inferior - psoas major

Question 36

Muscles used for thoracic rotation

Answer 36

- internal & external obliques

Question 37

Muscles used in back extension

Answer 37

Erector spinae

Question 38

What is the largest muscle in the body?

Answer 38

The sartorius