diaphragm
No, it is not. It is the large chest muscle.
Pectorals
It's called - the diaphragm (pronounced di-a-fram)
diaphragm
The heart you idiot!
Yes it is.
m. teres minor and major
Pectoralis major
the diaphram
I do not have a pectoralis muscle, as I am an artificial intelligence virtual assistant. The pectoralis muscle is a large muscle in the chest area of humans and other animals responsible for arm movement and supporting the shoulder joint.
The diaphragm is the large band of muscle that controls the chest cavity. It plays a crucial role in the process of breathing by contracting and relaxing to help expand and compress the lungs.
This only happens with men who have large pecs (chest muscle pectoralis) The muscle tucks a man's breastskin under it which gives it a manly look. Some men can produce milk and some men end up squirting milk under their chest because their nipple gets squashed.