W5 - 4 Compartments Of The Foot And Ankle

Question 1

Name the four compartments of the foot and ankle region

Answer 1

Anterior compartment
Deep posterior compartment
Superficial posterior compartment
Lateral compartment

Question 2

What are each compartment divided by?

Answer 2

Interosseous membrane (links tibia & fibular together)
2 inter muscular septa (pass between tibia & inter fascia)

Question 3

Name the full muscles in the anterior compartment

Answer 3

Tibialis anterior
Extensor Hallucis longish
Extensor digitorum longus
Peroneus tertius

Question 4

What movements do the muscles in the anterior compartment do?

Answer 4

Allow Dorsiflexion in the toes and ankle

Question 5

What nerve is a part of the anterior compartment?

Answer 5

Deep peroneal nerve

Question 6

What artery involved in the anterior compartment?

Answer 6

Anterior tibial artery

Question 7

What are the attachment sites of the tibialis anterior muscle of the anterior compartment?

Answer 7

Upper 2/3 of the lateral surface of the tibia shaft to the medial/inferior surface of the media cuneiform and base of metatarsal 1

Question 8

What nerve is a part of the tibialis anterior muscle of the anterior compartment?

Answer 8

Deep perineal nerve

Question 9

What movement does the tibialis anterior muscle in the anterior compartment allow?

Answer 9

Dorsiflexion, inversion, and dynamic support of medial arch of the foot

Question 10

Where does the extensor hallucis longus muscle of the anterior compartment attached to and from

Answer 10

Middle of the media surface of fibula to the dorsal surface of distal phalanx for the big toe

Question 11

What nerve is involved in the extensor hallucis longus muscle of the anterior compartment?

Answer 11

Deep peroneal nerve

Question 12

What movement does the extensor hallucis longus muscle of the anterior compartment do?

Answer 12

Extension of the big toe and Dorsey flexion of the foot

Question 13

Where is the extensor digitorum longus muscle of the anterior compartment connect to and from

Answer 13

Proximal half of the medial surface of fibula & related surface of lateral tibial condyle to the basis of the distal and middle phalanges of the lateral 4 toes

Question 14

What nerve supply is involved in the extensor digitorum longus muscle of the anterior compartment?

Answer 14

Deep perineal nerve

Question 15

What movement does the extensive digitorum longest muscle of the anterior compartment do?

Answer 15

Extension of the four lateral toes and Dorsey flexion of the foot

Question 16

Where does the perineal tertius muscle of the anterior compartment connect to and from?

Answer 16

Distal part of medial surface of fibula to the dorsal medial surface of base of metatarsal five

Question 17

What nerve supply helps the perineal tertius muscle of the anterior compartment?

Answer 17

Deep perineal nerve

Question 18

What movement does the perineal tertius muscle of the anterior compartment allow?

Answer 18

Dorsiflexion and eversion of the foot

Question 19

What muscles are part of the superficial posterior compartment?

Answer 19

Gastrocnemius
Soleus
Plantaris

Question 20

What nerve all the muscles of the superficial posterior compartment use?

Answer 20

Tibial nerve S1-2

Question 21

What movements do all the muscles in the superficial posterior compartment allow?

Answer 21

Plantar flexion of the foot

Question 22

Where do all the muscles of the superficial posterior compartment insert into

Answer 22

The calcaneous via calcaneal tendon (Achilles tendon)

Question 23

What for muscles make up the deep posterior compartment

Answer 23

Popliteus
Flexor hallucis longus
Flexor digitorium longus
Tibialis posterior

Question 24

What nerve are all the muscles of the deep posterior compartment innovated by?

Answer 24

Tibial nerve L4-S3

Question 25

What are all the muscles of the deep posterior compartment allow?

Answer 25

Planter flexion of the foot apart from the popliteus muscle

Question 26

What shape is the popliteus muscle and where does it connect to and from?

Answer 26

Flat triangular shape
Connects from lateral femoral condyle to the posterior surface of the proximal tibia above the soleal line

Question 27

What action does the POPLITEUS muscle do?

Answer 27

Stabilises the new joint and unlocks the knee joint

Question 28

Where does the flexor hallucis longus muscle of the deep posterior compartment go from and to

Answer 28

Lower 2/3 of posterior surface of fibular & adjacent Interosseous membrane to plantar surface of the base of the big toe

Question 29

Where does the flexed digitorum longus muscle connect to them from in the deep posterior compartment?

Answer 29

From the media side of posterior surface of tibia to the four tendons on the planter surface of the distal phalanges of the four lateral toes

Question 30

Where is the tibialis posterior muscle of the deep posterior compartment connect to and from?

Answer 30

Connect from the posterior surface of the tibia fibula to the Tuberocity of the navicular and adjacent region of media cuneiform

Question 31

What three muscles make up the lateral compartment?

Answer 31

Peroneus longus
Peroneus brevis

Question 32

Where does the peroneus longus muscle connect to and from

Answer 32

From: lateral surface of fibula, head of the fibula, and sometimes the lateral tibial condyle
To: The undersurface and natural sides of medial cuneiform and base of metatarsal one

Question 33

Where does the peroneus Brevis connect to and from

Answer 33

From: lower 2/3 of lateral surface of shaft of the fibula
To: lateral tubercle at the base of metatarsal five

Question 34

What nerve supply do the muscles in the lateral compartment use?

Answer 34

Superficial peroneal nerve L5-S2