Flexor hallucis longus muscle (3D)

The video tutorial explores the flexor hallucis longus muscle, detailing its location, nerve supply, and attachments. It explains the muscle's role in movements such as toe flexion, plantar flexion, and foot inversion, highlighting its importance in walking and balance. The tutorial also covers the joints affected by the muscle and concludes with a recap of its functions.

Which nerve is responsible for innervating the flexor hallucis longus muscle?

• Sciatic nerve

• Tibial nerve

• Femoral nerve

• Peroneal nerve

Where does the flexor hallucis longus muscle originate?

• Medial surface of the femur

• Inferior 2/3 of the posterior surface of the fibula

• Anterior surface of the tibia

• Lateral surface of the calcaneus

Which joint is NOT affected by the flexor hallucis longus?

• Ankle joint

• Subtalar joint

• Metatarsophalangeal joint

• Knee joint

What is the primary movement produced by the flexor hallucis longus at the metatarsophalangeal joint?

• Foot eversion

• Foot dorsiflexion

• Toe extension

• Toe flexion

How does the flexor hallucis longus contribute to plantar flexion?

• It does not contribute to plantar flexion.

• It assists larger muscles like the gastrocnemius and soleus.

• It is the primary muscle responsible for plantar flexion.

• It only contributes during toe extension.

What role does the flexor hallucis longus play in foot inversion?

• It prevents foot inversion.

• It assists in tilting the foot towards the midline.

• It stabilizes the knee during inversion.

• It is the main muscle responsible for inversion.

Which of the following is a function of the flexor hallucis longus?

• Toe extension

• Foot eversion

• Toe flexion

• Knee flexion