Foot

Question 0

1. Abductor hallucis

Answer 0

O: medial tubercle of calcaneus tuberosity, flexor retinaculum, plantar aponeurosis
I: medial side of base of proximal phalanx of 1st digit
N: medial plantar n. (S2,3)
V: medial plantar a.
A: abducts and flexes 1st digits

Question 1

1. Abductor digiti minimi

Answer 1

O: med and lat tubercles of calcaneus tuberosity, plantar aponeurosis, inter muscular septa
I: lateral side of base of proximal phalanx of 5th digit
N: lateral plantar n. (S2,3)
V: lateral plantar a.
A: abducts and flexes little toe

Question 2

1. Flexor digitorum brevis

Answer 2

O: medial tubercle of calcaneus tuberosity, plantar aponeurosis, intermuscular septa
I: both sides of middle phalanges of lateral four digits
N: medial plantar n. (S2,3)
V: medial and lateral plantar arteries
A: flexes lateral four digits

Question 3

2. Lumbricles

Answer 3

O: tendons of flexor digitorum longus
I: medial aspect of expansion over lateral four digits
N: med one: medial plantar n. (S2,3). Lat three: lateral plantar n. (S2,3)
V: med and lat plantar aa.
A: flexes proximal phalanges, extends middle and distal phalanges of lateral four digits

Question 4

2. Quadratus plantae

Answer 4

O: med surface and lat margin of plantar surface of calcaneus
I: posterolateral margin of tendon of flexor digitorum longus
N: lateral plantar n. (S2,3)
V: lateral plantar a.
A: assists flexor digitorum longus in flexing lat four digits

Question 5

3. Adductor hallucis

Answer 5

O: oblique: bases of metatarsals 2-4. Transverse: plantar lig of metatarsophalangeal joints
I: tendons of both heads attach to lateral side of base of proximal phalanx of 1st digit
N: deep branch of lateral plantar n. (S2,3)
V: plantar metatarsal artery from dorsalis pedis artery
A: adducts 1st digit, assists in transverse arch of foot by metatarsals medially

Question 6

3. Flexor digiti minimi

Answer 6

O: base of 5th metatarsal
I: base of proximal phalanx of 5th digit
N: superficial branch of lateral plantar n. (S2,3)
V: lateral plantar a.
A: flexes proximal phalanx 5th digit

Question 7

3. Flexor hallucis brevis

Answer 7

O: plantar surface of cuboid and lateral cuneiform
I: both sides of base of proximal phalanx of 1st digit
N: medial plantar n. (S2,3)
V: medial plantar artery and first plantar metatarsal a.
A: flexes proximal phalanx of 1st digit

Question 8

4. Dorsal interossei

Answer 8

O: adjacent sides of shafts of metatarsals 1-5
I: 1st- medial side of proximal phalanx of 2nd digit. 2nd-4th: lateral sides of 2nd - 4th digits
N: lateral plantar n. (S2,3)
V: lateral and medial tarsal aa., dorsal digital aa.
A: abducts digits 2-4 and flex metatarsophalangeal joints

Question 9

4. Plantar interossei

Answer 9

O: plantar aspect of medial sides of shafts of metatarsals 3-5
I: medial sides of bases of phalanges of digits 3-5
N: lateral plantar n. (S2,3)
V: lateral plantar a., plantar arch
A: adduct digits 3-5 and flex metatarsophalangeal joints

Question 10

Dorsum: Extensor digitorum brevis

Answer 10

O: calcaneus (floor of tarsal sinus), interosseous tall calcaneus lig, stem of inferior extensor retinaculum
I: long extensor tendons of four medial digits
N: deep fibular n. (L5,S1)
V: dorsalis pedis a.
A: aids extensor digit long in extending 4 medial toes at metatarsophalangeal and interphalangeal joints

Question 11

Dorsum: Extensor hallucis brevis

Answer 11

O: calcaneus (floor of tarsal sinus), interosseous talocalcaneal lig, stem of inferior extensor retinaculum
I: dorsal aspect of base of proximal phalanx of great toe
N: deep fibular n. (L5,S1)
V: dorsalis pedis artery
A: aids extensor hallucis longus in extending great toe at metatarsophalangeal joint

Question 12

Dorsum: Fibularis tertius

Answer 12

O: inferior third of anterior surface of fibula and interosseous mem
I: Dorsum of base of 5th metatarsal
N: deep fibular n. (L4,5)
V: anterior tibial artery
A: dorsiflexes ankle and aids in eversion of foot