Muscles of the Foot Flashcards
How many layers of muscle are there in the plantar region?
4
Name the muscles in the 1st layer of the plantar region
Abductor Hallucis (AH)
Flexor Digitorum Brevis
Abductor Digiti Minimi (AM)
Abductor Hallucis - Origin
Medial tubercle of calcaneal tuberosity
Abductor Hallucis - Insertion
Base of proximal phalanx of digit one
Abductor Hallucis - Innervation
Medial plantar nerve
Abductor Hallucis - Action(s)
Abducts and Flexes digit one
Flexor Digitorum Brevis - Origin
Medial tubercle of calcaneal tuberosity
Flexor Digitorum Brevis - Insertion
Middle phalanges, digits 2-5
Flexor Digitorum Brevis - Innervation
Medial plantar nerve
Flexor Digitorum Brevis - Action(s)
Flexes digits 2-5
Abductor Digiti Minimi - Origin
Medial and lateral tubercles of calcaneal tuberosity
Abductor Digiti Minimi - Insertion
Base of proximal phalanx of digit 5
Abductor Digiti Minimi - Innervation
Lateral plantar nerve
Abductor Digiti Minimi - Action(s)
Abducts and flexes digit 5
Name the muscles of the 2nd layer of the plantar region
Quadratus Plantae
Lumbricals
Quadratus Plantae - Origin
Medial and lateral calcaneus
Quadratus Plantae - Insertion
Tendons of flexor digitorum longus
Quadratus Plantae - Innervation
Lateral plantar nerve
Quadratus Plantae - Action(s)
Assists flexion of digits 2-5
Lumbricals - Origin
Tendons of flexor digitorum longus
Lumbricals - Insertion
Expansion of digits 2-5