Lower limb week 4 revamped Flashcards by Brandon Craipley

Q

What are the contents and 4 borders of the popliteal fossa

A

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Q

What are the 4 nerves of the lower limb

A

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Q

Label the cutaneous nerve innervation

A

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Q

Label the arteries of the lower leg

A

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Q

What is the purpose of the genicular anastomosis

A

Supply knee capsules and ligaments and provides collateral circulation when knee is flexed

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Q

Label the genicular anastomosis

A

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Q

Label the venous drainage of the lower limb

A

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Q

Label the missing parts

A

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Q

What are the ankle movements

A

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Q

Label the posterior compartment of the lower leg

A

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Q

Gastrocnemius origin

A

2 heads on medial and lateral femur condyle

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Q

Gastroc insertion

A

Posterior calcaneus bone via calcaneal tendon

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Q

Gastroc action

A

PFF when knee is extended, KF

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Q

Gastroc innervation

A

Tibial nerve

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Q

Soleus origin

A

Superior tibia, fibula and interosseus membrane

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Q

Soleus insertion

A

Posterior calcaneous bone via calcaneal tendon

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Q

Soleus action

A

PFF, postural/locomotor muscle during running and walking

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Q

Soleus innervation

A

Tibial nerve

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Q

Plantaris origin

A

Posterior femur above lateral condyle

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Q

Plantaris insertion

A

Calcaneous bone via calcaneal tendon

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Q

Plantaris action

A

KF, PFF

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Q

Plantaris innervation

A

Tibial nerve

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Q

Calcaneal tendon is also called the

A

achilles tendon

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Q

Name the 7 muscles of the posterior leg

A

Popliteus
Gastroc
Plantaris
Soleus
Tib. Post
flexor Hallucis Longus
Flexor Digitorum Longus

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Label the deep muscles of the posterior compartment

Popliteus origin

Lateral condyle of femur and lateral meniscus of knee

Popliteus insertion

Proximal tibia

Popliteus action

Flexes and rotates femur laterally (open) to unlock knee from full extension when flexion beings -> medically rotation for closed chain

Popliteus innervation

Tibial nerve

Flexor digitorum longus origin

Posterior tibia

FDL insertion

Distal phalanges toes 2-5 (runs under medial malleolus)

FDL action

PFF, IF, TF, helps foot grip ground

FDL innervation

tibial nerve

Flexor hallucis longus origin

Mid shaft of fibula

FHL insertion

Runs under foot to distal phalanx of big toe

FHL action

PFF, IF, flexes big toe and serves as push off when walking

FHL innervation

Tibial nerve

Tib post origin

Superior tibia and fibula

tib post insertion

Passes behind medial malleolus and under arch of foot to insert into tarsals and metatarsals 2-4

Tib post action

FI, PFF, supports medial arch of foot

Tib post innervation

Tibial nerve

Describe the tib post, FDL, and FHL at medial malleolus

Name the 2 muscles of the lateral compartment of the lower leg

Peroneus/fibularis longus origin

Head of fibula

P. Longus insertion

Goes under foot to first metatarsal and medial cuneiform

P. Longus action

PFF, EF

P. Longus innervation

Superficial fibular nerve

Peroneus/Fibularis brevis origin

Distal shaft of fibula

P. Brevis insertion

Run behind lateral malleolus to insert at proximal end of 5th metatarsal

P. Brevis action

PFF, EF

P. Brevis innervation

Superficial fibular nerve

Label the nerves of the lateral compartment

Label the nerves of the lower leg

Name the 4 muscles of the anterior compartment of the lower leg

Tib. Ant (superficial) origin

Lateral condyle

Tib ant insertion

Medial cuneiform and first metatarsal

Tib ant action

DFF, IF

Tib ant innervation

deep fibular nerve

Extensor digitorum longus (deep) origin

Lateral condyle of tibia

EDL insertion

Middle and distal phalanges of toes 2-5

EDL action

TE (2-5) and DFF

EDL innervation

Deep fibular nerve

Fibularis tertius (deep) origin

Inferior shaft of fibula

Fibularis tertius insertion

Dorsum of 5th metatarsal

Fibularis tertius action

DFF, FE

Fibularis tertius innervation

Deep fibular nerve

Extensor retinaculum function

Holds all tendons down and protects them during contraction and movements

Label the anterior compartment nerve innervation (lower leg)innervation

Label the blood supply to the anterior compartment of leg

What are the 4 movements of the foot

Is it easier to invert or evert the foot

Invert due to bony arrangement of fibula and tibia

Label the image

Label the image

Label the image

Label the xray

Talocrural (ankle) joint articulates with

Distal end of tibia and fibula and superior aspect of talus

What are the movements of the talocrural (ankle) joint

Hinge motion (plantar/dorsiflexion) Note: Congruency is highest during dorsiflexion and lowest during plantarflexion

Label this image of the calcaneous

The FHL tendon runs under the

sustentaculum tali

Name the 2 medial ligaments of the ankle joint

Label the 3 ligaments of the lateral ankle joint

What is the articulation of the subtalar (talocalcaneal) joint

Inferior surface of talus and superior aspect of calcaneus

What is the movement of the subtalar (talocalcaneal) joint

Inversion/eversion

What provides support to the subtalar (talocalcaneal) joint

Interosseous talocalcaneal ligaments

The transverse tarsal joint creates

a subtalar joint complex with the talocalcaneal joint

The transverse tarsal joint is a compound of what 2 synovial joints

What is the movement of the transverse tarsal joint

Inversion/eversion

What are the 3 retinaculum's of the ankle joint and their function

Flexor: holds down flexor tendons Superior and interior: Hold down anterior muscle compartment tendons

Label the cross section of the ankle

What runs through the tarsal tunnel

Symptoms and causes of tarsal tunnel syndrome

What 4 structures contribute to the stability of the ankle joint