Intercostal Muscles
Origin: From the first to the eleventh ribs, on the inner surface and inferior border, from the tubercles of the rib posteriorly to the costocartilage anteriorly
Insertion: The rib immediately below the level of proximal attachment, on its superior surface
Actions: Elevation of the ribs during respiration
Innervation: Intercostal nerves, ventral rami of T1 through T11
Blood Supply: Intercostals arteries
Primary Actions of the Intercostal Muscles
1. Elevation of the ribs during respiration
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Muscle Pain Information: The intercostal muscles contributes to pain around the rib cage.

An excellent book for those beginning the study of anatomy. Coloring helps memory retention.
For intermediary anatomy students learning skeletal and muscle structure.
For beginning and intermediary anatomy . Muscle overlays on the human body. Excellent visuals!