Extensor Digiti Minimi: Difference between revisions
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== Description == | == Description == | ||
Extensor Digiti Minimi is a long slender skeletal muscle situated in the posterior compartment of the forearm. It lies between Extensor Digitorum and Extensor Carpi Ulnaris and is generally connected to the Extensor Digitorum. The antagonist of this muscle is Flexor Digiti Minimi muscle.<ref name=":0">[https://archive.org/stream/anatomyofhumanbo1918gray#page/454/mode/2up Gray H. Anatomy of the human body]. Lea & Febiger; 1878.</ref> | Extensor Digiti Minimi is a long slender skeletal muscle situated in the posterior compartment of the forearm. It lies between Extensor Digitorum and Extensor Carpi Ulnaris and is generally connected to the Extensor Digitorum. The antagonist of this muscle is Flexor Digiti Minimi muscle.<ref name=":0">[https://archive.org/stream/anatomyofhumanbo1918gray#page/454/mode/2up Gray H. Anatomy of the human body]. Lea & Febiger; 1878.</ref> | ||
[[File:1120 Muscles that Move the Forearm Antebrach. Sup. Ext. Sin.png|thumb]] | |||
=== Origin === | === Origin === | ||
It originates from the common extensor origin present on the lateral epicondyle of the humerus by a tendinous slip and from the intermuscular septum. | It originates from the common extensor origin present on the lateral epicondyle of the humerus by a tendinous slip and from the intermuscular septum. | ||
=== Insertion === | === Insertion === | ||
It may or may not divide into two as it crosses the hand.<ref name=":0" /> It inserts in the base of the fifth proximal phalange on the dorsal side.<ref>Cael C. Functional anatomy: musculoskeletal anatomy, kinesiology, and palpation for manual therapists. Jones & Bartlett Learning; 2020 Aug 3.</ref> | It may or may not divide into two as it crosses the hand.<ref name=":0" /> It inserts in the base of the fifth proximal phalange on the dorsal side.<ref name=":1">Cael C. Functional anatomy: musculoskeletal anatomy, kinesiology, and palpation for manual therapists. Jones & Bartlett Learning; 2020 Aug 3.</ref> | ||
=== Nerve === | === Nerve === | ||
Posterior Interosseous Nerve ( C7, C8 )<ref name=":1" /> | |||
=== Artery === | === Artery === | ||
Radial recurrent artery from Radial artery and Posterior Interosseous artery from Ulnar artery. | |||
== Function == | == Function == | ||
Extensor Digiti Minimi helps in extending the fifth finger along with Exensor Digitorum Communis. It also helps in extension of the wrist. | |||
== Clinical relevance == | == Clinical relevance == | ||
The conditions involving Extensor Digiti Minimi are Vaugh Jackson Syndrome and Tenosynovits. | |||
== Assessment == | == Assessment == | ||
Palpation, MMT and Muscle Length Test are used in the assessment of Extensor Digiti Minimi. | |||
== Resources == | == Resources == | ||
Revision as of 11:49, 25 October 2020
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Original Editor - Shreya Pavaskar
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Description[edit | edit source]
Extensor Digiti Minimi is a long slender skeletal muscle situated in the posterior compartment of the forearm. It lies between Extensor Digitorum and Extensor Carpi Ulnaris and is generally connected to the Extensor Digitorum. The antagonist of this muscle is Flexor Digiti Minimi muscle.[1]
Origin[edit | edit source]
It originates from the common extensor origin present on the lateral epicondyle of the humerus by a tendinous slip and from the intermuscular septum.
Insertion[edit | edit source]
It may or may not divide into two as it crosses the hand.[1] It inserts in the base of the fifth proximal phalange on the dorsal side.[2]
Nerve[edit | edit source]
Posterior Interosseous Nerve ( C7, C8 )[2]
Artery[edit | edit source]
Radial recurrent artery from Radial artery and Posterior Interosseous artery from Ulnar artery.
Function[edit | edit source]
Extensor Digiti Minimi helps in extending the fifth finger along with Exensor Digitorum Communis. It also helps in extension of the wrist.
Clinical relevance[edit | edit source]
The conditions involving Extensor Digiti Minimi are Vaugh Jackson Syndrome and Tenosynovits.
Assessment[edit | edit source]
Palpation, MMT and Muscle Length Test are used in the assessment of Extensor Digiti Minimi.
Resources[edit | edit source]
- ↑ 1.0 1.1 Gray H. Anatomy of the human body. Lea & Febiger; 1878.
- ↑ 2.0 2.1 Cael C. Functional anatomy: musculoskeletal anatomy, kinesiology, and palpation for manual therapists. Jones & Bartlett Learning; 2020 Aug 3.
