Foot Flashcards
1st layer: Flexor digitorum brevis
O: calcaneus; plantar aponeurosis; intermuscular septum.
I: Both sides of middle phalanges, of internal 4 digits.
A: flexes lateral 4 digits at PIP, supports medial and lateral longitudinal arches.
N: Medial plantar nerve (S2, S3)
1st layer: Abductor hallucis
O: calcaneus; flexor retinaculum; plantar aponeurosis
I: medial side of the base proximal phalanx of digit 1.
A: abducts and flexes 1st digit. Supports longitudinal arch.
N: Medial plantar nerve (S2 S3)
Plantar aponeurosis connects to
all 5 proximal phalanges and calcareous
1st layer: Abductor digiti minimi
O: Calcaneus, plantar aponeurosis, intermuscular septum.
I: base of proximal phalanx (lateral side)
Action: abducts and flexes little toe. supports lateral longitudinal arch of the foot.
N: Lateral plantar nerve (S2, S3)
2nd layer you see what tendons what else ?
flexor digitorum longus.
medial and lateral plantar nerve and artery.
2nd layer: quadratus plantae
O: medial and lateral surfaces of calcaneus
I: tendon of flexor digitorum longus.
A: Assists flexor digitorum longus in flex
N: Lateral plantar nerve (S2 S3)
2nd: Lumbricals
O: Tendons of flexor digitorum longus
I: Medial aspect of expansions over lateral 4 digits
A: flex proximal phalanges, extend middle and distal of later 4 digits.
N: Medial 1 medial plantar nerve (S2 S3). Lateral 3, lateral planter nerve.
3rd Layer: Flexor Hallucis brevis
O: plantar surface of cuboid and lateral cuneiforms
I: Both sides of the base of the proximal phalanx of 1st digit. Semisolid bone.
A: flex MTP 1. supports medial longitudinal arch.
N: median plantar nerve (S2, S3)
MEdial longitudinal arch page 645
Calcaneus, talus, navicular, all cuneiform, MT 3,4,5
LAteral longitudinal arch page 645,
Calcaneus, cuboid, MT 4,5
Transverse arch page 645
cuboid, all cuneiforms
