Intermediate Abductor Digiti Minimi Quiz

Q1. Which part of the calcaneus contributes importantly to the origin of abductor digiti minimi?

• Sustentaculum tali only
• Talar trochlea
• Calcaneal tuberosity
• Navicular tuberosity

Q2. Which connective tissue structure contributes to the origin of abductor digiti minimi?

• Extensor retinaculum
• Plantar aponeurosis
• Interosseous membrane of the leg
• Quadriceps tendon

Q3. Which terminal branch of the tibial nerve supplies abductor digiti minimi?

• Sural nerve
• Lateral plantar nerve
• Deep fibular nerve
• Medial plantar nerve

Q4. Which artery is most directly associated with the neurovascular supply of the lateral plantar region containing this muscle?

• Lateral plantar artery
• Descending genicular artery
• Dorsalis pedis artery only
• Anterior tibial recurrent artery

Q5. How is abductor digiti minimi related to the plantar aponeurosis?

• It passes through the ankle extensor retinaculum
• It lies entirely on the dorsum
• It lies superficial to the skin
• It lies deep to the plantar aponeurosis

Q6. Which metatarsophalangeal joint is influenced directly by abductor digiti minimi?

• Talocrural joint
• First metatarsophalangeal joint only
• Fifth metatarsophalangeal joint
• Second metatarsophalangeal joint only

Q7. What is the relationship of abductor digiti minimi to flexor digitorum brevis in the superficial sole?

• It lies within flexor digitorum longus
• It lies dorsal to the metatarsals
• It lies lateral to flexor digitorum brevis
• It lies medial to abductor hallucis

Q8. Why can abductor digiti minimi contribute to lateral longitudinal arch support?

• Its longitudinal course along the lateral sole can assist dynamic support
• It forms the plantar calcaneonavicular ligament
• It is the primary static ligament of the medial arch
• It directly locks the ankle mortise

Q9. Which structure is near the distal attachment of abductor digiti minimi?

• Fifth metatarsophalangeal joint
• First tarsometatarsal joint
• Head of the talus
• Medial malleolus

Q10. What distinguishes abductor digiti minimi from flexor digiti minimi brevis?

• It inserts on the great toe
• It is a dorsal muscle supplied by the deep fibular nerve
• It is a first-layer muscle arising proximally from the calcaneal region
• It originates from the tibial shaft