Intermediate Phalanges Quiz

Q1. What type of articular surface is found at the head of a proximal phalanx of toes two through five?

• A trochlear surface for the middle phalanx
• A facet for the cuboid
• A surface for the talar head
• A flat surface for a metatarsal base

Q2. Which joints are present in toes two through five but not both present in the hallux?

• Two metatarsophalangeal joints
• Two tarsometatarsal joints
• Proximal and distal interphalangeal joints
• Subtalar and talonavicular joints

Q3. Where does flexor hallucis longus insert?

• Middle phalanx of the second toe
• Base of the distal phalanx of the hallux
• Navicular tuberosity
• Base of the fifth metatarsal

Q4. Where does extensor hallucis longus insert?

• Plantar base of the first metatarsal
• Calcaneal tuberosity
• Navicular tuberosity
• Dorsal base of the distal phalanx of the hallux

Q5. Where does flexor digitorum longus insert in toes two through five?

• Bases of the proximal phalanges
• Heads of the metatarsals
• Bases of the distal phalanges
• Cuboid

Q6. Where does flexor digitorum brevis insert?

• Middle phalanges of toes two through five
• First metatarsal base
• Navicular
• Distal phalanx of the hallux

Q7. Which structure expands over the dorsum of the lateral four toes and transmits extensor forces to the phalanges?

• Long plantar ligament
• Plantar aponeurosis only
• Spring ligament
• Extensor expansion

Q8. What is the expanded terminal portion of a distal phalanx called?

• Sustentaculum
• Distal tuft
• Trochlear notch
• Malleolus

Q9. Which phalanx is directly involved in the metatarsophalangeal joint of every toe?

• Distal phalanx
• Proximal phalanx
• Middle phalanx
• No phalanx

Q10. How do the phalanges of the hallux differ functionally from those of the lesser toes?

• They form the lateral longitudinal arch
• They articulate directly with the talus
• They do not bear load during gait
• They form a robust two-bone chain important for push-off