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Anatomy Lower Limb > Class 4 > Flashcards

Class 4 Flashcards

1
Q

What forms the medial and lateral and inferior border of the popliteal fossa

A 
Medial = semimembranosus
Lateral = biceps femoris
Inferior = gastrocnemius
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2
Q

What are the contents of the popliteal fossa from medial to lateral

A 
Fat
Popliteal artery - deep
Popliteal vein 
Tibial nerve - most superficial 
Common fibular nerve - follows biceps tendon laterally
Popliteal LN
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3
Q

What nerve innervates all posterior leg muscles

A

Tibial nerve

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4
Q

What artery supplies all posterior leg muscles

A

Posterior tibial artery

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5
Q

What are the superficial muscles of the posterior leg

A

Gastrocnemius - most superficial
PLantaris
Soleus

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6
Q

What are the deep muscles of the posterior leg

A

Popliteus
Tibialis posterior
Flexor digotrum longus
Flexor hallucis longus

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7
Q

What is between the superficial and deep muscles

A

Neurovascualr structures

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8
Q

What is the action of the gastrocnemius

A

Flexion of knee

Plantar flexion of ankle

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9
Q

What is the action of plantaris

A

Flexion of knee and plantar flexion of anke

Tendon can look like a nerve

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10
Q

What is the action of soleus

A

Plantar flexes ankle and joins the calcaneal tendon

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11
Q

What is the action of popliteus and where does it originate

A

Unlock the knee by lateral rotation

Originate at lateral collateral ligament

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12
Q

What is the action of the other deep muscles

A

TIbialis posterior - invert and plantar flex ankle (deep)
Flexor hallucis longs -flex the great toe
Flexor digiotrum longs - Flex the toes

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13
Q

Where do the deep muscles pass as they. cannot travel around the calcaneus as would be compressed

A

Medially and posterior to medial malleolus

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14
Q

What is the order of structures passing behind medial malleolus (from anterior to posterior)

A 
Tibialis poterior
Flexor digitorum longus
Posterior tibial artery
Posterior tibial vein
Tibial nerve
Flexor hallucis longus
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15
Q

What nemonic to remember structures passing behind medial mallolus

A 
Tom
Dick
And
Very
Nervous
Harry
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16
Q

What are the tarsal bones

A 
Calcaneus
Talus
Navicular - big toe behind cuneiforms 
Cuboid
Cuneiforms - 3
17
Q

What is the first thing you see when you remove the skin of the foot

A

Plantar aponeuoris

18
Q

What is muscle layer 1 of the foot

A

Flexor digitorum brevis
Abductor digiti minimi
Abductor hallucis

19
Q

What is muscle layer 2

A

Quadratas plantae

Lumbricals

20
Q

What nerve innervates the flexor digiotrum brevis and what is the action

A

Medial plantar

Flexion at IP

21
Q

What nerve innervates abductor digits minimi and what is the action

A

Lateral

Abduction and flexion of little toe

22
Q

What nerve innervates abductor hallucis and what is th action

A

Medial

Abduction and flexion of big toe

23
Q

What nerve innervates quadrates plantae and what is the action

A

Lateral
Flexion of 4 digits
Attach to FDL tendon coming round from medial malleolus

24
Q

What nerve innervates the lumbricals and what is the action

A

Flex MTP
Extend IP
Medial and lateral plantar
Attach medially on to FDL

25
Q

What arteries supply the foot

A

Medial and lateral plantar artery

Branch of posterior tibial

Anatomy Lower Limb (4 decks)

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