Yes it is
yes
The heart is deep to the pectoralis major. That muscle is superficial to the heart.
The heart is deep to the pectoralis major. The pectoralis major is superficial to the heart.
Pectoralis minor.
pectoralis minor and subclavius muscle.
there are two muscles with pectoralis in their name, Pectoralis Major and Pectoralis Minor. Pectoralis Major is the main muscle of the chest and pectoralis minor is deep to it (so you can't feel it because pectoralis major completely covers it)
pectoralis major
pectoralis major
It's the Pectoralis Minor!
External intercostals
The main function of the pectoralis major is to assist with the movement of the arms. It also plays a huge role in deep inhalation by pulling the ribcage out to make room for the lungs to expand.
The main function of the pectoralis major is to assist with the movement of the arms. It also plays a huge role in deep inhalation by pulling the ribcage out to make room for the lungs to expand.
The pectoralis major is the large fan like muscle located on either side of the chest, originating from the sternal half of the clavical, the anterior surface of the sternum, and the cartilage of the first seven ribs, and inserting in the bicepital groove of the humerus. Therefore, its primary actions deal with movements of the shoulder joint. It adducts, flexes, and medially rotates the humerus. There is also a pectoralis minor, which is also located on the chest, but lies deep to the pectoralis major. It originates on ribs 3-5, and inserts on the coracoid process of the scapula. The pectoralis minor works on the scapula, drawing it toward the thorax so as to increase the range of motion of the shoulder.