Pectoralis Major Muscle

1 minute read

Pectoralis Major Muscle

Hi everyone. I think it’s been more than a year that I posted on the website. It has been a bit of a busy year with a lot of updates. I finally finished my MD in Anatomy from Osmania Medical College. The vision to learn more about human anatomy and teach it to others using 3 dimensional anatomical models is slowly coming true.

Right now, I am working as a senior resident in Government Medical College, Khammam.

Anyhow, apart from my full time work in the college teaching students, I am also trying to create a few videos on youtube which help students in learning anatomy better.

I want to show the body in 3d while making this videos and for that I am creating 3d models. The models that are created during the process of video making are what I call artifacts. I will be uploading the artifacts on sketchfab for people to see or even purchase. The Pectoralis Major is one such artifact in such a series of artifacts here.

Pectoralis major originates from the clavicular and the sternocostal heads. It also takes a slip of origin from the external oblique aponeurosis. It is inserted onto the lateral lip of the bicipital group.

A well known mnemonic to remember on which muscle inserts where is “Lady between two Majors”. i.e., Latissimus dorsi(lady) is between Pectoralis Major and Teres Major. However to remember which is on the medial and which is on the lateral lip, I look at the spelling of Teres and PectoraLis. Pectoralis Major has L in its, so it is lateral, making Teres Major medial.

I will be here again soon with more updates. Thank you.

Here is the model in 3d: