Pyramidalis Muscle: Difference between revisions
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== Description == | == Description == | ||
Pyramidalis is a paired anterior triangular abdominal muscle with rectus abdominis that contributes to form the anterior abdominal wall. It's absent in 20% of the population and has a less significant role, triangular muscle | |||
=== Origin === | === Origin === | ||
It arises from symphysis pubic and pubic crest | |||
=== Insertion === | === Insertion === | ||
It decreases in size as it ascends and inserts medially to linea alba as a pointed apex. | |||
=== Nerve === | === Nerve === | ||
It is innervated by subcostal nerve T12 | |||
=== Artery === | === Artery === | ||
The main arterial supply from the inferior epigastric supply and the deep circumflex iliac artery to a lesser extent. | |||
== Function == | == Function == | ||
When they contract tense the linea alba, contract with other abdominal muscle to increase positive abdominal pressure.<ref>https://www.kenhub.com/en/library/anatomy/pyramidalis-muscle</ref> | |||
== Clinical relevance == | == Clinical relevance == | ||
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[[Category:Anatomy]] [[Category:Muscles]] | [[Category:Anatomy]] | ||
[[Category:Muscles]] | |||
Revision as of 01:19, 17 May 2020
Original Editor - User Name
Top Contributors - Khloud Shreif, Lucinda hampton, Kim Jackson, Oyemi Sillo and Leana Louw
Description[edit | edit source]
Pyramidalis is a paired anterior triangular abdominal muscle with rectus abdominis that contributes to form the anterior abdominal wall. It's absent in 20% of the population and has a less significant role, triangular muscle
Origin[edit | edit source]
It arises from symphysis pubic and pubic crest
Insertion[edit | edit source]
It decreases in size as it ascends and inserts medially to linea alba as a pointed apex.
Nerve[edit | edit source]
It is innervated by subcostal nerve T12
Artery[edit | edit source]
The main arterial supply from the inferior epigastric supply and the deep circumflex iliac artery to a lesser extent.
Function[edit | edit source]
When they contract tense the linea alba, contract with other abdominal muscle to increase positive abdominal pressure.[1]
