Extensor digiti minimi muscle
- Extensor digiti minimi muscle
Muscle infobox
Name = Extensor digiti minimi
Latin = musculus extensor digiti minimi
GraySubject = 125
GrayPage = 451
Caption = The mucous sheaths of the tendons on the back of the wrist. (Extensor digiti quinti proprius labeled at center left.)
Caption2 =
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
Blood = 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
MeshName =
MeshNumber =
DorlandsPre = m_22
DorlandsSuf = 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.
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.
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.
Absence of muscle rare; fusion of the belly with the Extensor digitorum communis not uncommon.
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External links
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Wikimedia Foundation.
2010.
Look at other dictionaries:
extensor digiti minimi muscle — musculus extensor digiti minimi … Medical dictionary
Opponens digiti minimi muscle — The muscles of the thumb. (Opponens quinti digiti visible at center right.) … Wikipedia
extensor digiti minimi — extensor dig·i·ti min·i·mi dij ə .tī min ə .mī, dij ə .tē min ə .mē n a slender muscle on the medial side of the extensor digitorum communis that extends the little finger … Medical dictionary
Extensor carpi ulnaris muscle — Extensor carpi ulnaris Posterior surface of the forearm. Extensor carpi ulnaris labeled in purple at center right. Latin musculus extensor carpi ulnaris … Wikipedia
Extensor digitorum longus muscle — The mucous sheaths of the tendons around the ankle. Lateral aspect. (Extensor dig. longus labeled at upper right.) Latin musculus extensor digitorum longus … Wikipedia
Flexor digiti minimi brevis (hand) — Infobox Muscle Name = Flexor digiti minimi brevis Latin = musculus flexor digiti minimi brevis manus GraySubject = 126 GrayPage = 464 Caption = The muscles of the left hand. Palmar surface Origin = hamate bone Insertion = little finger Blood =… … Wikipedia
vagina tendinis musculi extensoris digiti minimi — [TA] the tendon sheath enclosing the tendon of the extensor digiti minimi muscle, passing into the hand along the medial side of the wrist … Medical dictionary
musculus extensor digiti minimi — [TA] extensor muscle of little finger: origin, common extensor tendon and adjacent intermuscular septa; insertion, extensor expansion of little finger; innervation, deep branch of radial; action, extends little finger … Medical dictionary
Muscle — is the tissue of the body which primarily functions as a source of power. There are three types of muscle in the body. Muscle which is responsible for moving extremities and external areas of the body is called "skeletal muscle." Heart… … Medical dictionary
Muscle — For other uses of Muscle , see Muscle (disambiguation). A top down view of skeletal muscle Muscle (from Latin … Wikipedia
