Small pectoralis muscle
Small pectoralis muscle , m. Pectoralis minor, flat, triangular, located in the second layer, covered with a large pectoral muscle. It begins with separate teeth from the II-V ribs near the junction of their cartilaginous and bony parts. Heading upward and somewhat laterally, the muscle bundles converge; With a short tendon the muscle is attached to the beak-like process of the scapula.
Function: pulls forward and downward scapula, and with a strengthened scapula lifts the ribs as an auxiliary respiratory muscle.
Innervation: nn. Pectorales medialis and lateralis (CVII-ThI).
Blood supply: aa. Thoracoacromialis, intercostales anteriores, thoracica superior.
Comments
When commenting on, remember that the content and tone of your message can hurt the feelings of real people, show respect and tolerance to your interlocutors even if you do not share their opinion, your behavior in the conditions of freedom of expression and anonymity provided by the Internet, changes Not only virtual, but also the real world. All comments are hidden from the index, spam is controlled.