M11: Lower Extremity Muscles - Actions V1 Flashcards Preview

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Flashcards in M11: Lower Extremity Muscles - Actions V1 Deck (20)
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1
Q

What are the actions of the gluteus maximus?

A

Primary Action:

  • Hip Extension

Other Actions

  • External/Lateral Rotation
2
Q

What are the actions of the the gluteus medius?

A

Primary action:

  • hip abduction

Other actions

  • internal/medial rotation of hip
3
Q

What are the actions of the tensor fascia lata?

A

hip flexion and abduction

also stabilizes the knee

Image: TFL = tensor fascia lata

4
Q

What are the actions of the sartorius?

A

knee flexion

hip flexion

external/lateral rotation of hip

5
Q

What are the actions of the rectus femoris?

A

Knee extension / Hip flexion

6
Q

What are the actions of the vastus lateralis?

A

knee extension

7
Q

What are the actions of the vastus medialis?

A

knee extension

8
Q

What are the actions of the vastus intermedius?

A

knee extension

Bonus note: the vastus intermedius is located deep to the rectus femoris

9
Q

What are the actions of the biceps femoris?

A

hip extension / knee flexion

10
Q

What are the actions of the semitendinosus?

A

hip extension / knee flexion

11
Q

What are the actions of the semimembranousus?

A

hip extension / knee flexion

12
Q

What are the actions of the adductor magnus?

A

adduction of hip

13
Q

What are the actions of the adductor longus?

A

adduction of hip

14
Q

What are the actions of the adductor brevis?

A

adduction of hip

15
Q

What is the action of the piriformis?

A

external/lateral rotation of hip

16
Q

What are the actions of the ilopsoas?

A

hip flexion

Bonus note: the iliopsoas consists of the iliacus and psoas major

17
Q

What are the actions of the gastrocnemius?

A

plantar flexion

18
Q

What are the actions of the soleus?

A

plantar flexion

19
Q

What are the actions of the tibilias anterior?

A

dorsiflexion of ankle

inversion of foot

also arch support

20
Q

What are the actions of the peroneals?

A

Eversion of foot

Note: the peroneals are a group of multiple muscles