The pectoral muscles, commonly referred to as “pecs,” are a group of muscles located on the chest. There are two primary pectoral muscles:
1. Pectoralis Major
- Location: This is the larger and more superficial (closer to the skin) of the two pectoral muscles. It spans across the upper chest, connecting the sternum (breastbone), clavicle (collarbone), and ribs to the humerus (upper arm bone).
- Function: The pectoralis major is responsible for movements of the shoulder joint, including:
- Adduction: Bringing the arm toward the body.
- Flexion: Raising the arm forward.
- Internal Rotation: Rotating the arm inward.
2. Pectoralis Minor
- Location: This smaller muscle lies beneath the pectoralis major. It connects the third, fourth, and fifth ribs to the scapula (shoulder blade).
- Function: The pectoralis minor helps with movements involving the shoulder blade, such as:
- Stabilizing and moving the scapula.
- Drawing the scapula downward and forward.
Importance of Pectoral Muscles
- These muscles play a crucial role in upper body strength and movement. They are heavily involved in activities like pushing, lifting, and throwing.
- Strong pectoral muscles contribute to good posture and overall upper body aesthetics.
Exercises to Strengthen Pectoral Muscles
- Bench Press (flat, incline, decline)
- Push-Ups
- Chest Flyes
- Dips
By working on these muscles, you can improve both functional strength and physical appearance in your chest area.
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