Podcast
Questions and Answers
What is the primary attachment point of the plantar fascia?
What is the primary attachment point of the plantar fascia?
- Plantar plates and skin (correct)
- Deep transverse metatarsal ligaments
- Lateral process of the calcaneal tuberosity
- Medial process of the calcaneal tuberosity
What is the function of the central band of the plantar fascia?
What is the function of the central band of the plantar fascia?
- To flex the metatarsophalangeal joints
- To increase arch height (correct)
- To stabilize the lateral longitudinal arch
- To support the medial longitudinal arch
Which of the following muscles is NOT found in the central compartment of the plantar foot?
Which of the following muscles is NOT found in the central compartment of the plantar foot?
- Flexor digitorum brevis
- Quadratus plantae
- Abductor hallucis (correct)
- Lumbricals
What is the purpose of the extensor expansion sling?
What is the purpose of the extensor expansion sling?
Which of the following structures is NOT a compartment of the plantar foot?
Which of the following structures is NOT a compartment of the plantar foot?
What is the purpose of the deep transverse metatarsal ligaments?
What is the purpose of the deep transverse metatarsal ligaments?
What is the attachment point of the abductor digiti minimi brevis?
What is the attachment point of the abductor digiti minimi brevis?
Which muscle helps to form the sling of the extensor expansion?
Which muscle helps to form the sling of the extensor expansion?
What is the function of the flexor retinaculum?
What is the function of the flexor retinaculum?
What is the order of structures that pass through the tarsal tunnel?
What is the order of structures that pass through the tarsal tunnel?
What is the location of the sesamoids?
What is the location of the sesamoids?
Which tendon does not insert on the EHL tendon?
Which tendon does not insert on the EHL tendon?
What is the function of the suspensory ligament?
What is the function of the suspensory ligament?
Which nerve innervates the medial dorsal cutaneous area?
Which nerve innervates the medial dorsal cutaneous area?
What is the location of the tarsal tunnel?
What is the location of the tarsal tunnel?
Which branch of the posterior tibial artery anastomoses with the sinus tarsi artery?
Which branch of the posterior tibial artery anastomoses with the sinus tarsi artery?
What is the destination of the superficial branch of the lateral plantar nerve?
What is the destination of the superficial branch of the lateral plantar nerve?
What is the function of the deep branch of the lateral plantar nerve?
What is the function of the deep branch of the lateral plantar nerve?
What is the destination of the medial plantar artery?
What is the destination of the medial plantar artery?
What is the location of the sustentaculum tali?
What is the location of the sustentaculum tali?
Which nerve bifurcates into medial and lateral plantar nerves?
Which nerve bifurcates into medial and lateral plantar nerves?
What is the innervation of the first lumbrical muscle?
What is the innervation of the first lumbrical muscle?
Which nerve supplies the adductor hallucis muscle?
Which nerve supplies the adductor hallucis muscle?
Which nerve pierces the flexor retinaculum?
Which nerve pierces the flexor retinaculum?
What is the innervation of the extensor digitorum brevis muscle?
What is the innervation of the extensor digitorum brevis muscle?
Match each group of muscles to its origin
Match each group of muscles to its origin
Match each group of muscles to its origin
Match each group of muscles to its origin
Match each group of muscles to their insertio
Match each group of muscles to their insertio
Match each muscle group to its insertion
Match each muscle group to its insertion
Match each muscle to its insertion
Match each muscle to its insertion
Flashcards are hidden until you start studying
Study Notes
Plantar Fascia
- Originates from the calcaneal tuberosity and attaches to the plantar plates and skin
- Composed of three bands: medial, central, and lateral
- Central band fans out distally and forms digital slips
- Superficial slips attach to the skin anterior to the metatarsal heads
- Deep slips attach to plantar plates and deep transverse metatarsal ligaments
- Help form flexor sheaths
Compartments of the Plantar Foot
- True fascial compartments separated by intermuscular septa
- Medial compartment: FHB, abductor hallucis, and FHL tendon
- Lateral compartment: Flexor digiti minimi brevis, abductor digiti minimi
- Central compartment: FDB, QP, lumbricals, and adductor hallucis
- Interosseous compartment: Dorsal and plantar interossei
Extensor Expansion
- Functions as a compound tendinous attachment of EDL and EDB
- Lateral wing: lumbrical and medial wing
- Plantar to deep transverse metatarsal ligament and plantar interosseous
- Dorsal to deep transverse metatarsal ligament and extensor expansion wing
Muscles with Attachments Other than to Bone
- Quadratus plantae: attaches to the lumbricals and FDL tendon
- Lumbricals: attach to the FDL tendon and plantar plates
- Adductor hallucis: attaches to the transverse head and extensor expansion
- Extensor digitorum brevis: attaches to the EDL tendon and forms wing laterally
Retinacula
- Superior peroneal retinaculum: thickening of deep fascia that attaches to the calcaneus and forms one tendon sheath
- Inferior peroneal retinaculum: attaches to the calcaneus and forms two tendon sheaths
- Flexor retinaculum: attaches to the calcaneus and forms the tarsal tunnel
- Four fibrous tunnels and three tendon sheaths
Innervation
- Dorsal foot: innervated by the superficial peroneal nerve, medial dorsal cutaneous nerve, and intermediate dorsal cutaneous nerve
- Plantar foot: innervated by the medial plantar nerve, lateral plantar nerve, and sural nerve
Arteries
- Posterior tibial artery: bifurcates near the sustentaculum tali into the medial plantar artery and lateral plantar artery
- Medial plantar artery: smaller and deeper
- Lateral plantar artery: larger and more superficial
- Terminal branches of the posterior tibial artery: medial plantar artery and lateral plantar artery
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
