Shared Flashcard Set

Details

XXVIII. b. Muscles of the Foot
Unit 3: Week 12
12
Anatomy
Undergraduate 2
11/14/2013

Additional Anatomy Flashcards

 


 

Cards

Term
Muscles of Foot
Definition

Dorsum of Foot:

-Extensor Digitorum Brevis

Plantar Foot: 3 layers;

Layer 1:

-Abductor Hallucis

-Flexor Digitorum Brevis

-Abductor Digiti Minimi

Layer 2:

-Quadratus Plantae

-Lumbricals

Layer 3:

-Flexor Hallucis Brevis

-Adductor Hallucis

-Flexor Digiti Minimi Brevis

Layer 4:

-Plantar Interossei

-Dorsal Interossei

Term
Extensor Digitorum Brevis (Origin, Insertion, Innervation, & Action)
Definition

Dorsum side; 

O: Upper and lateral sides of calcaneus

I: Base of proximal phalanx of great toe (extensor hallucis brevis) and tendons to lateral sides of extensor digitorum

N: Deep Fibular Nerve

A: Extends toes 1-4 (Medial)

Term
Abductor Hallucis (Origin, Insertion, Innervation, & Action)
Definition

Plantar- Layer 1;

O: Tuberosity of calcaneus

I: Joins with tendon of flexor hallucis brevis and attaches to base of proximal phalanx of great toe

N: Medial Plantar Nerve

A: Abducts and flexes great toe

Term
Flexor Digitorum Brevis (Origin, Insertion, Innervation, & Action)
Definition

Plantar- Layer 1;

O: Tuberosity of calcaneus

I: Four tendons divide to attach on to lateral sides of middle phalanges of toes 2-5

N: Medial Plantar Nerve

A: Flexes toes

 

Term
Abductor Digiti Minimi (Origin, Insertion, Innervation, & Action)
Definition

Plantar- Layer 1;

O: Tuberosity of calcaneus

I: Lateral side of proximal phalanx of small toe

N: Lateral Plantar Nerve

A: Abducts and flexes little toe

Term
Quadratus Plantae (Origin, Insertion, Innervation, & Action)
Definition

Plantar- Layer 2; Flexor Accessorius;

O: Two heads attached to calcaneus on either side of the long plantar ligament

I: Lateral border of the tendon of flexor digitorum longus

N: Lateral Plantar Nerve

A: Aids flexor digitorum longus in flexing toes

Term
Lumbricals (Origin, Insertion, Innervation, & Action)
Definition

Plantar- Layer 2; four muscles;

O: Medial side of tendons of flexor digitorum longus

I: Medial side of base of proximal phalanges and extensor tendons of toes 2-5

N: Medial Plantar (1) and Lateral Plantar (2,3,4) Nerves

A: Flex proximal interphalangeal joints and extend two distal phalanges of toes 2-5

Term
Flexor Hallucis Brevis (Origin, Insertion, Innervation, & Action)
Definition

Plantar- Layer 3;

O: Cuboid and 3rd Cuneiform

I: Medial tendon joins abductor hallucis tendon; lateral tendon joins that of adductor hallucis

N: Medial Plantar Nerve

A: Flexes proximal phalanx of great toe

Term
Adductor Hallucis (Origin, Insertion, Innervation, & Action)
Definition

Plantar- Layer 3;

O: Base of metatarsals 2-4; sheath of fibularis longus (oblique head); metatarsophalangeal joint capsule of toes 3-5 (transverse head)

I: Lateral side of proximal phalanx of great toe with tendon of flexor hallucis brevis

N: Lateral Plantar Nerve

A: Adducts and flexes great toe

Term
Flexor Digiti Minimi Brevis (Origin, Insertion, Innervation, & Action)
Definition

Plantar- Layer 3;

O: Base of fifth metatarsal; sheath of fibularis longus

I: Lateral side of proximal phalanx of little toe

N: Lateral Plantar Nerve

A: Flexes little toe

Term
Plantar Interossei (Origin, Insertion, Innervation, & Action)
Definition

Plantar- Layer 4; three muscles; PAD

O: Bases and medial sides of metatarsals 3-5

I: Medial side of the base of the proximal phalanges of toes 3-5

N: Lateral Plantar Nerve

A: Adducts toes 3-5 toward second toe; flex proximal and extend distal phalanges of toes 3-5

Term
Dorsal Interossei (Origin, Insertion, Innervation, & Action)
Definition

Plantar- Layer 4; four muscles; DAB;

O: Bipennate muscles attaching to adjacent shafts of metatarsals 1-5

I: Proximal phalanx of both sides of second toe; lateral side of third and fourth toes

N: Lateral Plantar Nerve

A: Abduct toes from axis of second toe; flex proximal and extend distal phalanges of toes 2-4

Supporting users have an ad free experience!