Second Layer of Sole Flashcards
1
Q
What is the origin or quadratus plantae?
A
Calcaneal tuberosity
2
Q
What is the origin of the lumbricles?
A
Medial border of corresponding flexor digitorum longus tendon
3
Q
What is the insertion of quadratus plantae?
A
Tendons of flexor digitorum longus
4
Q
What is the insertion of the lumbricles?
A
Proximal phalanges and extensor hoods of lateral four toes
5
Q
What is the innervation of quadratus plantae?
A
Lateral plantar nerve (branch of tibial nerve) S1, S2, S3
6
Q
What is the innervartion of the lumbricles?
A
First lumbrical: Medial plantar nerve (S2, S3)
Lateral three lumbricles: Lateral plantar nerve (S2, S3)
7
Q
What is the action of quadratus plantae?
A
Flexion of lateral four toes
8
Q
What is the action of the lumbricles?
A
Flexion of MSP joint and extension of interphalangeal joint
