MOINA Muscles of the Posterior Fascial Compartment of the Leg Flashcards

1
Q

gastrocnemius

A

origin: lateral condyle of femur (lateral head) and above medial condyle of femur (medial head)
insertion: via tendo calcaneus into posterior surface of calcaneum

nerve: tibial nerve

plantar flexes foot at ankle joint; flexes leg at knee joint

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

plantaris

A

origin: lateral supracondylar ridge of femur
insertion: posterior surface of calcaneus

nerve: tibial nerve

plantar flexes foot at ankle joint; flexes leg at knee joint

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

soleus

A

origin: shafts of tibia and fibula
insertion: via tendo calcaneus into posterior surface of calcaneum

nerve: tibial nerve

together with gastrocnemius and plantaris is a power plantar flexor of the foot; provides main propulsive force in walking and running

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

popliteus

A

origin: lateral surface of lateral condyle of femur
insertion: posterior surface of shaft of tibia above soleal line

nerve: tibial nerve

flexes leg at knee joint; unlocks knee joint by lateral rotation of femur on tibia and slackens ligaments of joint

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

flexor digitorum longus

A

origin: posterior surface of shaft of tibia
insertion: bases of distal phalanges of lateral four toes

nerve: tibial nerve

flexes distal phalanges of lateral four toes; plantar flexes foot at ankle joint; supports medial and lateral longitudinal arches of the foot

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

flexor hallucis longus

A

origin: posterior surface of shaft of fibula
insertion: base of distal phalanx of big toe

nerve: tibial nerve

flexes distal phalanx of big toe; plantar flexes foot at ankle joint; supports medial longitudinal arch of the foot

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

tibialis posterior

A

origin: posterior surface of shafts of tibia and fibula
insertion: tuberosity of navicular and other neighboring bones

nerve: tibial nerve

plantar flexes foot at ankle joint; inverts foot at subtalar and transverse tarsal joints; supports medial longitudinal arch of the foot

How well did you know this?
1
Not at all
2
3
4
5
Perfectly