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Intercostal Muscles Anatomy: Origin, Insertion, Action, Innervation

Intercostal Muscles Anatomy Study: Origin, Insertion, Action and Innervation

Intercostal muscles anatomy.
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.
Action: Draw adjacent ribs together, elevate and depress the ribs in inspiration
Innervation: Intercostal nerves, ventral rami of T1 through T11
Blood Supply: Intercostal arteries

For pain and symptom information see: Intercostal Muscles: Rib Pain and Breathing Difficulty

Primary Action of the Intercostal Muscles

1. Elevation of the ribs during respiration

Secondary Action of the Intercostal Muscles

1.  Assists with rotation of the trunk

Suggested Anatomy Books

Anatomy Coloring Book

coloring_bookThe Anatomy Coloring Book is one of the best study and reference books for beginning anatomy students. The diagrams are clearly labeled and allow you to see the relationship and placement of the various structures of the body. You will also be surprised how the act of coloring will help with recall. But this is not just a beginners book, it is also great for practitioners and therapists to have on hand to use with clients and patients to use as a visual reference.

Trail Guide to the Body

Trail Guide To The Body


The Trail Guide To The Body is another excellent book to help you learn the musculature of the human body. Though the book is geared toward massage therapists and physical therapist assistants, the book with its illustrations and text helps anyone gain a thorough understanding of the human musculoskeletal system and movement. I highly recommend this book for anyone studying anatomy and believe that MTs, PTAs, and teachers of body movements should have this book in their possession. I also highly recommend this book for the lay person who wants to gain understanding of the muscle, skeletal system and how our bodies move. This book will not disappoint!



The Trigger Point Therapy Workbook – Claire Davies, Amber Davies, and David G. Simons

Basic Clinical Massage Therapy: Integrating Anatomy and Treatment – James H. Clay and David M. Pounds

Trigger Point Therapy for Myofascial Pain – Donna Finando and Steven Finando

Massage Therapy Principles and Practice – Susan Salvo

Theory & Practice of Therapeutic Massage – Mark Beck



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