Pectoralis Major Muscle: Chest, Shoulder, Upper Back, Arm, Hand

The pectoralis major contributes to pain in the chest, shoulder, breast and upper back. Pain can also travel down the inner arm, elbow and extend to the hand and last two fingers.

What You Need to Know About Your Pectorals – Genesis Bailey Fitness

Pectoralis Major Rupture

Tight Chest Muscles: Why Your Upper Back Is the Key to Their Release — Laguna Orthopedic Rehabilitation

Muscles of the Pectoral Region - Major - Minor - TeachMeAnatomy

Pectoralis Major Muscle Anatomy - Bodyworks Prime

Muscles in the Chest - JOI Jacksonville Orthopaedic Institute

Sports Injury Bulletin - Diagnose & Treat - Uncommon injuries: Pec minor - a diagnostic dilemma

Does the Pectoralis major 'twist'? As in does the sternal head insert closer to the shoulder, and the clavicular head closer to the forearm? - Quora

Pectoralis Major Muscle: Chest, Shoulder, Upper Back, Arm, Hand Pain - The Wellness Digest

Pectoralis Minor Syndrome: A Relatively Unknown Condition with a Somewhat Simple Solution - Shoulder & Elbow