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Adele MSK > Anatomy - Lower Limb 3 > Flashcards

Anatomy - Lower Limb 3 Flashcards

1
Q

The musculature of the leg is divided into which three compartments?

A

Anterior
Lateral
Posterior

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2
Q

What are the four muscles in the anterior compartment?

A

Tibialis anterior
Extensor digitorum longus
Extensor hallucis longus
Fibularis tertius

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3
Q

What are the actions of the muscles in the anterior compartment?

A

Dorsiflexion of the ankle

Extension of the toes

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4
Q

What is dorsiflexion?

A

Flexing the foot up towards the shin, flexion in the dorsal direction

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5
Q

What are the two divisions of the sciatic nerve?

A

Tibial nerve

Common fibular nerve

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6
Q

Which branch of the common fibular nerve innervates the muscles of the anterior compartment of the leg?

A

Deep fibular nerve

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7
Q

Which terminal branch of the popliteal artery supplies the anterior leg?

A

Anterior tibial artery

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8
Q

Which artery runs midway between the malleoli?

A

Dorsalis pedis artery

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9
Q

What are the two muscles in the lateral compartment?

A

Fibularis longus

Fibularis brevis

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10
Q

What are the actions of the muscles in the lateral compartment?

A

Eversion of the foot

Plantarflexion of the ankle joint

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11
Q

Which fibular nerve is the nerve of the lateral compartment?

A

Superficial fibular nerve

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12
Q

What type of joint is the ankle joint?

A

Synovial hinge

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13
Q

What are the articular surfaces of the ankle?

A

Distal end of the tibia and fibula

Superior part of the talus

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14
Q

Which ligament of the ankle joint is named the deltoid ligament?

A

The medial ligament of the talocrural joint

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15
Q

In which position is the ankle most stable?

A

Dorsiflexion

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16
Q

What type of joint is the superior/proximal tibiofibular joint?

A

Synovial plane

17
Q

What type of joint is the inferior/distal tibiofibular joint?

A

Fibrous

18
Q

Which muscle forms the upper medial border of the popliteal fossa?

A

Semimembranosus muscle

19
Q

Which muscle forms the upper lateral border of the popliteal fossa?

A

Biceps femoris muscle

20
Q

Which muscle forms the lower medial border of the popliteal fossa?

A

Medial head of the gastrocnemius

21
Q

Which muscle forms the lower lateral border of the popliteal fossa?

A

Lateral head of the gastrocnemius

22
Q

What are the contents of the popliteal fossa?

A 
Fat
Tibial nerve
Common fibular nerve
Popliteal artery and vein
Small saphenous vein
Popliteal lymph nodes and lymphatic vessels
23
Q

What are the two groups that the muscles in the posterior compartment of the leg are divided into?

A

Superficial

Deep

24
Q

Which muscle is found in the superficial group of the posterior compartment of the leg?

A

Gastrocnemius

25
Q

Which nerve innervates the gastrocnemius muscle?

A

Tibial nerve

26
Q

What is the function of the plantaris muscle?

A

Plantarflexion

27
Q

What is the action of gastrocnemius?

A

Ankle and knee flexion

28
Q

Which nerve innervates all the muscles of the posterior compartment of the leg?

A

Tibial nerve (sciatic)

29
Q

Which branch of the popliteal artery supplies the posterior compartment of the leg?

A

Posterior tibial artery

30
Q

What are the four muscles in the deep group of the posterior compartment of the leg?

A

Popliteus
Flexor hallucis longus
Flexor digitorum longus
Tibialis posterior

31
Q

What are the two terminal branches of the tibial nerve which innervate the intrinsic muscles of the foot?

A

medial and lateral plantar nerves

32
Q

Which set of interossei adduct the toes?

A

Plantar interossei

33
Q

What are the two terminal branches of the posterior tibial artery which supply the foot region?

A

Medial and lateral artery

34
Q

What is the spring ligament also known as?

A

Plantar calcaneonavicular ligament

Adele MSK (22 decks)

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