Anatom3DLeft pectoral part of chest
Regio pectoralis sinistra · Levá prsní oblast hrudníku
Muscles
Looks like
The front chest region over the pectoralis major, from the collarbone down to about the sixth rib.
What it does
Holds the chest muscles and, in front of them, the breast.
Keeping it well
Muscle strain here is common; crushing central chest pain spreading to the arm or jaw is an emergency.