From Surf Wiki (app.surf) — the open knowledge base
Innermost intercostal muscle
| Innermost intercostal muscle |
|---|
| Innermost intercostal muscle (red), seen from back. |
| Infero-posterior border of each rib (above) |
| Supero-posterior border of the rib (below) |
| Intercostal arteries |
| Intercostal nerves |
| Through adduction of upper ribs to the lower ribs the muscles narrow intercostal slits and diminish thorax volume, therefore the muscles represent expiratory muscles. |
| musculus intercostalis intimus |
| A04.4.01.014 |
| 2313 |
| 74086 |
| Anatomical terms of muscle |
The innermost intercostal muscle is a layer of intercostal muscles. It may also be called the intima of the internal intercostal muscles. It is the deepest muscular layer of the thorax, with muscle fibres running vertically (in parallel with the internal intercostal muscles). It is present only in the middle of each intercostal space, and often not present higher up the rib cage. It lies deep to the plane that contains the intercostal nerves and intercostal vessels, and the internal intercostal muscles. The diaphragm is continuous with the innermost intercostal muscle.
-
Innermost intercostal muscle (shown in red). Animation.
-
A cutout of the thoracic wall showing the three layers of intercostal muscle - from the left wall.
-
Anatomy photo:18:04-0103 at the SUNY Downstate Medical Center - "Thoracic Wall: The Intercostal Nerve and Vessels"
-
Anatomy figure: 18:03-04 at Human Anatomy Online, SUNY Downstate Medical Center - "Transverse section of thorax."
-
thoraxmuscles at The Anatomy Lesson by Wesley Norman (Georgetown University)
Ask Mako anything about Innermost intercostal muscle — get instant answers, deeper analysis, and related topics.
Research with MakoFree with your Surf account
Create a free account to save articles, ask Mako questions, and organize your research.
Sign up freeThis content may have been generated or modified by AI. CloudSurf Software LLC is not responsible for the accuracy, completeness, or reliability of AI-generated content. Always verify important information from primary sources.
Report