Antagonistic muscle pairs

• The pectoralis major is an antagonist to the latissimus dorsi, teres major, and deltoid muscles.
• The biceps brachii is an antagonist to the triceps brachii.
• The biceps brachii is an agonist to the triceps brachii.
• The rectus abdominis is an antagonist to the external oblique, internal oblique, transversus abdominis, and erector spinae muscles.
• The sartorius is an antagonist to the hamstring group (biceps femoris, semitendinosus, and semimembranosus).
• The gastrocnemius is an antagonist to the tibialis anterior.
• Hip flexors and gluteus maximus are an antagonistic muscle pair
• Quadriceps and Hamstrings are an antagonistic muscle pair
• Biceps and triceps are antagonistic muscle pair.