Muscle Chart Foot Flashcards
Extensor hallucis brevis
O: dorsal surface calcaneus
I: base of 1st proximal phalanx
A: Abd MTP 1
N: medial plantar nerve
Extensor digitorum brevis
O: dorsal surface calcaneus
I: base of middle phalange 2-4
A: Ext MTP 2-4, Ext PIP 2-4
N: deep Fibular nerve
Flexor hallucis brevis (med head)
O: medial cuneiform
I: base of 1st proximal phalanx
A: flex MTP 1
N: medial plantar nerve
Flexor hallucis brevis (lat head)
O: intermediate cuneiform
I: base of 1st proximal phalanx
A: flex MTP 1
N: lateral plantar nerve
Adductor hallucis (oblique head)
O: base MTs 2-4, cuboid, lateral cuneiform
I: base of 1st proximal phalanx
A: add MTP 1, flex MTP 1
N: lateral plantar nerve
Adductor hallucis (transverse head)
O: deep transverse MT ligament MTP 3-5
I: base of 1st proximal phalanx
A: add MTP, support transverse arch
N: lateral plantar nerve
Abductor digiti minimi
O: lateral calcaneal tuberosity
I: Base of 5th proximal phalanx
A: Abd MTP 5, Flex MTP 5
N: lateral plantar nerve
Flexor digiti minimi
O: base of 5th MT
I: base of 5th proximal phalanx
A: flex MTP 5
N: lateral plantar nerve
Flexor digitorum brevis
O: calcaneal tuberosity
I: middle phalanges 2-5
A: flex MTP 2-5, flex PIP 2-5
N: medial plantar nerve
Quadratus plantae
O: calcaneal tuberosity
I: lateral border of FDL tendon
A: redirects and augments pull of FDL
N: lateral plantar nerve
Lumbricals
O: medial border FDL tendons
I: dorsal aponeuroses 2-5
A: flex MTP 2-5, Ext IP 2-5, Add MTP 3-5, Abd MTP 2
N: 1st lumbrical: medial plantar N.
Lumbricals 2-4: lateral plantar N.
Abductor hallucis
O: medial calcaneal tuberosity
I: base of 1st proximal phalanx
A: Abd MTP
N: Medial plantar nerve
Plantar interossei
O: Medial border of MT 3-5
I: medial base of proximal phalanges 3-5
A: add MTP 3-5
N: lateral plantar nerve
Dorsal interossei
O: two heads from opposing sides of MT 1-5
I: 1st interosseus: medial base of 2nd proximal phalanx, 2-4th interossei: lateral base of proximal phalanges 2-4
A: Abd MTP 2-4
N: lateral plantar nerve
