3rd Layer of Foot Muscles Flashcards
Flexor Hallucis Brevis
O: Plantar Surfaces of Cuboid and Lateral Cuneiforms
I: Both sides of Base of Proximal Phalanx of 1st Digit
N: Medial Plantar Nerve (S2, S3)
A: Flexes Proximal Phalanx of 1st Digit
Adductor Hallucis
O: Transverse Head- Plantar Ligaments of MTP Joints; Oblique Head- Bases of Metatarsals 2-4
I: Tendons of both heads attach to Lateral side of Base of Proximal Phalanx of 1st Digit
N: Deep Branch of Lateral Plantar Nerve (S2, S3)
A: Traditionally said to Adduct 1st Digit; Assists in Transverse Arch of Foot by Metatarsals Medially
Flexor Digiti Minimi Brevis
O: Base of 5th Metatarsal
I: Base of Proximal Phalanx of 5th Digit
N: Superficial Branch of Lateral Plantar Nerve (S2, S3)
A: Flexes Proximal Phalanx of 5th Digit