Pectoral is the term used to refer to the muscles located on the chest of humans and many animals. These muscles are called pectoral muscles or chest muscles.
In humans, the pectoral muscle is divided into two parts: large and small. The pectoralis major muscle is the largest muscle in the chest and is located on the upper chest. It starts from the collarbone, sternum and lower ribs and ends at the top of the upper humerus. The pectoralis major muscle is responsible for raising and lowering the arms, as well as rotating them.
The pectoralis minor muscle is located under the pectoralis major muscle and originates from the upper ribs. It ends at the scapula and is responsible for rotating the scapula.
The pectoral muscles play an important role in maintaining an upright body posture. They are also involved in many daily activities, such as opening doors, lifting heavy objects, and climbing.
In addition, the pectoral muscles are of great importance in bodybuilding and fitness. Pectoral exercises help strengthen the chest, improve posture, and increase overall upper body strength.
In general, the pectoral muscles play an important role in movement and maintaining an upright body posture in humans and many animals. Developing these muscles can lead to improved fitness and overall upper body strength.