Dorsal Interossei of the Hand: Difference between revisions
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== Description == | == Description == | ||
In the hand there are four dorsal Interossei which lie superficially, inbetween the metacarpals on the dorsum of the hand. Each muscle is bipennate in shape and extends from the proximal ends of adjacent metacarpals to the proximal phalanx and dorsal digital expansion of the appropriate finger. The position of the insertion site is dependent on which digit is involved. On the first and second digit the muscle lies on the lateral side and in the third and fourth digit it lies of the medial side. <br> | |||
== Anatomy == | == Anatomy == | ||
=== | === Origins and Insertions === | ||
{| width="531" height="109" cellspacing="1" cellpadding="1" border="1" align="center" | |||
|- | |||
| Digit<br> | |||
| Origin<br> | |||
| Insertion <br> | |||
|- | |||
| 1st Digit <br> | |||
| | |||
Medial side of the proximal end of the first metacarpal and lateral side of the second metacarpal <br> | |||
| Lateral side of the base of the second proximal phalanx and the extensor expansion (Extensor Hood)<br> | |||
|- | |||
| 2nd Digit<br> | |||
| Medial side of the second metacarpal and lateral side of the third metacarpal<br> | |||
| Lateral side of the base of the third proximal phalanx and the extensor expansion <br> | |||
|- | |||
| 3rd Digit<br> | |||
| <br> | |||
| <br> | |||
|- | |||
| 4th Digit<br> | |||
| <br> | |||
| <br> | |||
|} | |||
<br> | |||
=== Nerve Supply === | === Nerve Supply === | ||
The Dorsal Interossei muscles are all supplied by the deep branch of the ulnar nerve (C8, T1). <br> | |||
=== Blood Supply === | === Blood Supply === | ||
The Dorsal Interossei are supplied by the dorsal and palmar interossei artery <br> | |||
== Function == | == Function == | ||
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=== Palpation === | === Palpation === | ||
=== Length Tension Testing === | === Length Tension Testing === | ||
=== Treatment === | === Treatment === | ||
== Recent Related Research (from [http://www.ncbi.nlm.nih.gov/pubmed/ Pubmed]) == | == Recent Related Research (from [http://www.ncbi.nlm.nih.gov/pubmed/ Pubmed]) == | ||
<div class="researchbox"> | <div class="researchbox"> | ||
<rss>Feed goes here!!|charset=UTF-8|short|max=10</rss> | <rss>Feed goes here!!|charset=UTF-8|short|max=10</rss> | ||
</div> | </div> | ||
== Resources == | == Resources == | ||
Revision as of 15:58, 14 February 2016
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Top Contributors - Kate Sampson, Olajumoke Ogunleye, Kim Jackson, Tony Lowe, Tomer Yona, Joao Costa, 127.0.0.1, George Prudden and WikiSysop
Description[edit | edit source]
In the hand there are four dorsal Interossei which lie superficially, inbetween the metacarpals on the dorsum of the hand. Each muscle is bipennate in shape and extends from the proximal ends of adjacent metacarpals to the proximal phalanx and dorsal digital expansion of the appropriate finger. The position of the insertion site is dependent on which digit is involved. On the first and second digit the muscle lies on the lateral side and in the third and fourth digit it lies of the medial side.
Anatomy[edit | edit source]
Origins and Insertions[edit | edit source]
| Digit |
Origin |
Insertion |
| 1st Digit |
Medial side of the proximal end of the first metacarpal and lateral side of the second metacarpal |
Lateral side of the base of the second proximal phalanx and the extensor expansion (Extensor Hood) |
| 2nd Digit |
Medial side of the second metacarpal and lateral side of the third metacarpal |
Lateral side of the base of the third proximal phalanx and the extensor expansion |
| 3rd Digit |
||
| 4th Digit |
Nerve Supply[edit | edit source]
The Dorsal Interossei muscles are all supplied by the deep branch of the ulnar nerve (C8, T1).
Blood Supply[edit | edit source]
The Dorsal Interossei are supplied by the dorsal and palmar interossei artery
Function[edit | edit source]
Actions[edit | edit source]
Functional contributions[edit | edit source]
Trigger Point Referral Pattern[edit | edit source]
Techniques[edit | edit source]
Palpation[edit | edit source]
Length Tension Testing[edit | edit source]
Treatment[edit | edit source]
Recent Related Research (from Pubmed)[edit | edit source]
Extension:RSS -- Error: Not a valid URL: Feed goes here!!|charset=UTF-8|short|max=10
Resources[edit | edit source]
References[edit | edit source]
References will automatically be added here, see adding references tutorial.
