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MD2002 > Muscles of the Lower Limb: Functions > Flashcards

Muscles of the Lower Limb: Functions Flashcards

(46 cards)

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1
Q

What is the function of psoas major?

A

hip flexion

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2
Q

What is the general rule for the movements/functions of hip muscles?

A

AF PE LA

Anterior = Flexion of hip

Posterior = Extension of hip

Lateral = Abduction of hip

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3
Q

What are the borders of the gluteal region?

A

Anterior: Pelvic Girdle

Superior: Iliac Crest

Inferior: Gluteal Folds

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4
Q

Function of the Gluteus Maximus

A

Hip extension
External rotation (assists)
Abduction (superior fibres)
Adduction (inferior fibres)

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5
Q

Function of gluteus medius and minimus

A

Abductors of the hip

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6
Q

Function of tensor fasciae latae

A

Flexion
Medial Rotation
Abduction
Stabilisation of the knee

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7
Q

Function of piriformis

A

External rotation and abduction of the hip

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8
Q

What is the function of gemellus superior?

A

external rotation and abduction of the hip

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9
Q

What is the function of obturator internus?

A

External rotation and slight abduction of the hip

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10
Q

What is the function of gemellus inferior?

A

external rotation and abduction of the hip

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11
Q

What is the function of quadratus femoris?

A

external rotation of the hip

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12
Q

What are the main actions of the hamstrings?

A

Hip extension
knee flexion
medial/lateral rotation of the hip and knee

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13
Q

What is the function of iliopsoas?

A

Hip flexion

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14
Q

What is the function of iliacus?

A

Hip flexion

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15
Q

What is the function of rectus femoris?

A

Hip flexion

Knee extension

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16
Q

What is the function of vastus medialis?

A

Knee extension

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17
Q

What is the function of vastus intermedius?

A

Knee extension

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18
Q

What is the function of vastus lateralis?

A

knee extension

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19
Q

What is the function of sartorius?

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A

Hip Flexion
Knee Flexion
Thigh Abduction
Thigh lateral rotation

20
Q

What is the origin of iliopsoas?

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A

Posterior abdominal wall

21
Q

What is the origin of rectus femoris?

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A

Ilium superior to acetabulum

22
Q

What is the origin of the vastus medialis?

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A

Intertrochanteric line down to medial supracondylar line

23
Q

What is the origin of vastus intermedius?

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A

Upper two thirds of the anterolateral surface of the femur

24
Q

What is the origin of the vastus lateralis?

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A

superior intertrochanteric line to gluteal spine

25
What is the origin of the sartorius?
anterior superior iliac spine
26
What is the insertion of the iliopsoas?
Lesser trochanter of the femur
27
What is the insertion of the rectus femoris?
Quadriceps femoris tendon
28
What is the insertion of the vastus muscles?
Quadriceps femoris tendon
29
What is the insertion of the sartorius muscle?
medial surface of tibia, below tibial tuberosity
30
What is the function of extensor digitorum brevis?
extends the toes (duh)
31
What is the function of extensor hallucis brevis?
works to extend the big toe
32
What is the function of quadratus plantae?
flexes toes 2-5
33
From where do the extrinsic muscles of the foot originate?
Lower leg
34
What is the function of gastrocnemius?
plantarflexes the foot flexes the knee
35
What is the function of the soleus muscle?
Plantarflexes the foot
36
What is the function of the plantaris muscle?
Plantarflexes the foot and flexes the knee
37
What is the function of the popliteus muscle?
Unlocks the knee joint Laterally rotates the femur Stabilises the knee joint
38
What is the function of the tibialis posterior?
inversion and plantarflexion of the foot supports the medial arch during walking
39
what is the function of flexor digitorum longus?
flexes lateral 4 toes
40
What is the function of fibularis longus?
Eversion and plantarflexion of the foot Support for lateral and transverse arches of the foot
41
What is the function of fibularis brevis?
Eversion of the foot
42
What is the function of tibialis anterior?
dorsiflexion and inversion of the foot as well as supporting the medial arch of the foot
43
What is the function of extensor hallucis longus?
Extension of the great toe and dorsiflexion of the foot
44
What is the function of the extensor digitorum longus?
Extension of the lateral 4 toes and dorsiflexion of the foot
45
What is the function of fibularis tertius?
Dorsiflexion and eversion of the foot
46
What is the function of muscles in the posterior compartment of the lower leg?
Plantarflexion and inversion of the foot, flexion of the toes ALL INNERVATED BY TIBIAL NERVE

MD2002 (50 decks)

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