Muscle Name: Sternal Head (Lower Chest)

Medical Name:

• Sternal Head of the Pectoralis Major

Other Names:

• Lower Pectoral
• Lower Chest Muscle

Head:

• Sternal Head (Part of the Pectoralis Major)

Movement:

• Adduction of the humerus
  • Bringing the arm towards the body
• Medial rotation of the humerus
  • Rotating the arm inward
• Extension of the shoulder from a flexed position
  • Bringing the arm back down when it’s raised

Attachment:

• Origin:
  • Anterior surface of the sternum
  • Superior six costal cartilages
  • Aponeurosis of the external oblique muscle
• Insertion:
  • Lateral lip of the bicipital groove of the humerus (also known as the intertubercular sulcus)

Related Muscles:

• Clavicular Head of the Pectoralis Major
• Pectoralis Minor
• Latissimus Dorsi
• Anterior Deltoid
• Subscapularis
• Serratus Anterior

EXERCISES

COMMUNITY