Audio LecturePro Feature Flexor Digiti Minimi Brevis (Hand) 0:00 / 0:00 1x 0.25x 0.5x 0.75x 1x 1.25x 1.5x 1.75x 2x The flexor digiti minimi brevis is a hypothenar muscle located within the hand. It is located lateral to the abductor digiti minimi brevis. Attachments: Originates from the hook of hamate and adjacent flexor retinaculum. Inserts onto the base of the proximal phalanx of the little finger. Actions: Flexion at the metacarpophalangeal joint joint of the little finger. Innervation: Ulnar nerve. Blood supply: Deep palmar arch. By TeachMeSeries Ltd (2026) Figure 1Superficial and deep layers of the hypothenar muscles 3D ModelPro Feature You've Discovered a Pro Feature Access our 3D Model Library Explore, cut, dissect, annotate and manipulate our 3D models to visualise anatomy in a dynamic, interactive way. Learn More Dissection AtlasPro Feature Prosection of the dorsal aspect of the hand, demonstrating the dorsal interossei. Prosection of the dorsal aspect of the hand, demonstrating the dorsal interossei. You've Discovered a Pro Feature Access our Dissection Image Library Enhance your understanding with high-resolution dissection images showcasing real-life anatomy. Learn More In gratitude to our body donorsLearn more In gratitude to our body donors We are deeply grateful to the individuals who chose to donate their bodies for the advancement of medical education. Their generosity makes these images possible and provides students and healthcare professionals with an invaluable opportunity to study human anatomy. We recognise the profound contribution made by each donor and their families, and we use these images with the dignity and respect their gift deserves. Acknowledge Frequent questions What is the flexor digiti minimi brevis? The flexor digiti minimi brevis is a hypothenar muscle in the hand responsible for flexing the little finger at the metacarpophalangeal joint. It plays a crucial role in hand movements involving the little finger. Where does the flexor digiti minimi brevis originate and insert? This muscle originates from the hook of the hamate and the adjacent flexor retinaculum, inserting at the base of the proximal phalanx of the little finger. These attachments are essential for its function in finger flexion. What is the primary action of the flexor digiti minimi brevis? The primary action of the flexor digiti minimi brevis is to facilitate flexion at the metacarpophalangeal joint of the little finger. This action is vital for grasping and gripping tasks. Which nerve innervates the flexor digiti minimi brevis? The flexor digiti minimi brevis is innervated by the ulnar nerve. This innervation is important for its motor function and coordination with other muscles of the hand. What is the blood supply to the flexor digiti minimi brevis? The blood supply to the flexor digiti minimi brevis comes from the deep palmar arch. Adequate blood flow is necessary for the muscle's health and functionality. Rate This Article