Img 1 : Subclavius Muscle

Muscle Anatomy And Insertions

Subclavius muscle (as the name suggests: sub – under) is a small, triangular muscle located under the clavicle bone. The muscle arises by a short, thick tendon from the first rib in front of the costoclavicular ligament. From this point, the subclavius muscle extends upwards and lateralward to be inserted into the groove on the underside of the clavicle1.

Muscle Function And Innervation

The main function of the muscle is shoulder depression Рthe muscle draws the clavicle bone downward and forward. Another main function of the muscle is protection Рit protects the brachial plexus and major blood vessels which run  under the clavicle bone. The subclavian nerve is responsible fur the muscle innervation.

Muscle Variations

The muscle may insert into the coracoid process (located on the scapula) instead of the groove on the underside of the clavicle.


  • (1912.) Gray H. Muscles Of The Upper Extremity, Anatomy Of The Human Body, page 438.
  • Img 1 source:¬†
Previous articleHeavy Handbags Can And Will Cause Neck And Back Problems
Next articleHave A Constant Urge To Urinate? Here`s Why
Hi everyone and welcome to our website! The main reason behind it was my desire to combine my two great passions in life. The first one was medicine and my desire to help people and when i combined it with my passion for blogging was born! I hope you enjoy your stay and ease your pain with our helpful tips!


Please enter your comment!
Please enter your name here