Opponens Digiti Minimi - Podcast Version 0:00 / 0:00 1x 0.25x 0.5x 0.75x 1x 1.25x 1.5x 1.75x 2x The opponens digiti minimi is a hypothenar muscle located within the hand. It lies deep to the other hypothenar muscles. Attachments: Originates from the hook of hamate and associated flexor retinaculum. Inserts onto the medial margin of the fifth metacarpal Actions: Opposition 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 Pro Feature - 3D Model 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 Pro Feature - Dissection Atlas Prosection of the deeper structures of the hand. The deep branch of the ulnar nerve innervates the majority of the muscles of the hand (except the lateral two lumbricals and the thenar eminence). Note the two-headed structure of the adductor pollicis. Prosection of the deeper structures of the hand. The deep branch of the ulnar nerve innervates the majority of the muscles of the hand (except the lateral two lumbricals and the thenar eminence). Note the two-headed structure of the adductor pollicis. 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 Frequent questions What is the opponens digiti minimi? The opponens digiti minimi is a hypothenar muscle in the hand responsible for the opposition of the little finger. It is situated deep to the other hypothenar muscles. Where does the opponens digiti minimi originate from? This muscle originates from the hook of the hamate bone and the associated flexor retinaculum. These attachments provide stability and support for its function. What is the insertion point of the opponens digiti minimi? The insertion of the opponens digiti minimi is located on the medial margin of the fifth metacarpal. This positioning allows for effective movement of the little finger. Which nerve innervates the opponens digiti minimi? The ulnar nerve innervates the opponens digiti minimi, facilitating its motor function. This nerve is crucial for the muscle's role in finger opposition. What is the blood supply for the opponens digiti minimi? The blood supply for the opponens digiti minimi comes from the deep palmar arch. This vascularisation is essential for maintaining the muscle's health and function. Rate This Article