Foot

Question 1

Extensor Digitorum Brevisand Extensor Hallucis Brevis attachments and actions

Answer 1

Attachments:
calcaneus, inferior extensor retinaculum
digitorum: tendons on dorsum of digits 2-4
hallucis: tendon on dorsum of digit 1

Action:
assists long extensors in extending digits

Question 2

Abductor hallucis

Answer 2

medial tubercle (or process) of calcaneal tuberosity, flexor retinaculum, plantar aponeurosis
medial side of base of 1st proximal phalanx

abducts and flexes 1st digit

Question 3

Flexor digitorum brevis

Answer 3

medial tubercle (or process) of calcaneal tuberosity, plantar aponeurosis
both sides of middle phalanges of digits 2-5

flexes digits 2-5

Question 4

Abductor digiti minimi

Answer 4

medial and lateral tubercles of calcaneal tuberosity, plantar aponeurosis
lateral side base of 5th proximal phalanx

abducts and flexes digit 5

Question 4

Flexor hallucis brevis

Answer 4

plantar surface of cuboid and lateral cuneiform
base of 1st proximal phalanx

flexes proximal phalanx 1st digit

Question 5

Quadratus plantae

Answer 5

(medial and lateral parts of ) plantar surface of calcaneus
tendon of flexor digitorum longus

Action:
assists flexion of digits 2-5

Question 6

Lumbricals

Answer 6

tendons of flexor digitorum longus
medial side of extensor expansion of digits 2 – 5

Action:
flex proximal phalanges and extend middle & distal phalanges of digits 2-5

Question 7

Adductor hallucis

Answer 7

oblique head: bases of metatarsals 2-4.
transverse head: plantar ligaments of metatarsophalangeal joints (MtP) & deep transvers metatarsal ligament
lateral side of base of 1st proximal phalanx

adducts 1st digit, assists maintenance of transverse arch

Question 8

Flexor digiti minimi brevis

Answer 8

(lateral side) base of 5th metatarsal
base of 5th proximal phalanx

flexes proximal phalanx of 5th digit

Question 9

Plantar interossei

Answer 9

bases and medial sides of metatarsals 3-5
medial sides of bases of proximal phalanges 3-5

adduct digits 3-5 (lateral 3), flex metatarsophalangeal joints

Question 10

Dorsal interossei

Answer 10

adjacent sides of metatarsals 1-5
1st: medial aspect of 2nd proximal phalanx;
2nd to 4th: lateral aspect of 2nd to 4th digits (middle 3)

abduct digits 2-4, flex metatarsophalangeal joints