| Extensor digiti minimi | |
|---|---|
 |
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| The mucous sheaths of the tendons on the back of the wrist. (Extensor digiti quinti proprius labeled at center left. ) | |
| Latin | musculus extensor digiti minimi |
| Gray's | subject #125 451 |
| Origin | the anterior portion of the lateral epicondyle of the humerus (common extensor tendon) |
| Insertion | at the extensor expansion, located at the base of the proximal phalanx of the finger on the dorsal side |
| Artery: | the posterior interosseous artery which originates from the common interosseous artery and more proximally, the ulnar artery |
| Nerve: | posterior interosseous nerve (C7, 8) |
| Action: | extends the little finger at all joints |
| Antagonist: | Flexor digiti minimi brevis |
| Dorlands /Elsevier |
m_22/12548878 |
The extensor minimi digiti (extensor digiti quinti proprius) is a slender muscle of the forearm, placed on the ulnar side of the Extensor digitorum communis, with which it is generally connected. Latin ( lingua Latīna, laˈtiːna is an Italic language, historically spoken in Latium and Ancient Rome. A typical Adult Human skeleton commonly consists of 206 208 or more bones depending on the method used in counting The humerus is a Long bone in the Arm or Forelimb that runs from the Shoulder to the Elbow. The common extensor tendon is a Tendon shared by a number of extensor Muscles in the Forearm. A typical Adult Human skeleton commonly consists of 206 208 or more bones depending on the method used in counting An extensor expansion ( dorsal expansion, dorsal hood) is an anatomical term that refers to the flattened tendons ( Aponeurosis) of extensor muscles that Proximal phalanges are Bones found in the limbs of most Vertebrates. Arteries are Blood vessels that carry blood away from the Heart. The posterior interosseous artery ( dorsal interosseous artery) is an Artery of the Forearm. The common interosseous artery, about 1 cm in length arises immediately below the Tuberosity of the radius. The ulnar artery is the main Blood vessel, with oxygenated Blood, of the Medial aspect of the Forearm. Accessory nerve Accessory obturator nerve Alderman's nerve Anococcygeal nerve Ansa The posterior interosseous nerve (or dorsal interosseous nerve) is a Nerve in the foream Kinesiology, also known as Human Kinetics, is the science of human movement The little finger, often called the pinky in American English and pinkie in Scottish English (from the Dutch word pink An antagonist is a classification used to describe a Muscle that acts in opposition to the specific movement generated by the agonist and is responsible for For the muscle of the foot see Flexor digiti quinti brevis muscle (foot The flexor digiti minimi brevis is a muscle in the hand that flexes the little finger Elsevier, the world's largest Publisher of Medical and Scientific literature, forms part of the Reed Elsevier group The forearm is the structure on the Upper limb, between the elbow and the Wrist. The Extensor digitorum ( Extensor digitorum communis) arises from the lateral epicondyle of the Humerus, by the common tendon from the intermuscular septa
It arises from the common Extensor tendon by a thin tendinous slip, from the intermuscular septa between it and the adjacent muscles.
Its tendon runs through a compartment of the dorsal carpal ligament behind the distal radio-ulnar joint, then divides into two as it crosses the hand, and finally joins the expansion of the Extensor digitorum communis tendon on the dorsum of the first phalanx of the little finger. The extensor retinaculum ( dorsal carpal ligament) is an anatomical term for the thickened part of the Antebrachial fascia that holds the tendons of the extensor muscles The Extensor digitorum ( Extensor digitorum communis) arises from the lateral epicondyle of the Humerus, by the common tendon from the intermuscular septa The name Phalanx (plural phalanges) is commonly given to the Bones that form Fingers and Toes In Primates such as Humans The little finger, often called the pinky in American English and pinkie in Scottish English (from the Dutch word pink
Variations
An additional fibrous slip from the lateral epicondyle; the tendon of insertion may not divide or may send a slip to the ring finger. The ring finger is the fourth digit of the human Hand, and the second most Ulnar Finger, located between the Middle finger and the
Absence of muscle rare; fusion of the belly with the Extensor digitorum communis not uncommon. The Extensor digitorum ( Extensor digitorum communis) arises from the lateral epicondyle of the Humerus, by the common tendon from the intermuscular septa
Additional images
 Bones of left forearm. Posterior aspect. |
 Posterior surface of the forearm. Superficial muscles. |
 Transverse section across distal ends of radius and ulna. |
 Transverse section across the wrist and digits. |
External links
This article was originally based on an entry from a public domain edition of Gray's Anatomy. Loyola University Chicago is a private co-educational Jesuit university established in Chicago in 1870 as Saint Ignatius College See Washington (disambiguation for other uses The University of Washington, founded in 1861, is a public research University The University of Kansas (often referred to as KU or just Kansas) is a public research university with campuses located in Lawrence, Kansas City The public domain is a range of abstract materials &ndash commonly referred to as Intellectual property &ndash which are not owned or controlled by anyone Henry Gray's Anatomy of the Human Body (or Gray's Anatomy as it has commonly been shortened is an English-language Human anatomy Textbook As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
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