Major Muscles of the Human Body

Front

Biceps Brachii

Back

Flexes the elbow and rotates the forearm

Front

Triceps Brachii

Back

Extends the elbow

Front

Deltoid

Back

Abducts, flexes, and extends the shoulder

Front

Pectoralis Major

Back

Adducts and medially rotates the arm

Front

Rectus Abdominis

Back

Flexes the vertebral column

Front

Latissimus Dorsi

Back

Extends, adducts, and medially rotates the arm

Front

Quadriceps Femoris

Back

Extends the knee

Front

Hamstrings

Back

Flexes the knee and extends the hip

Front

Gluteus Maximus

Back

Extends and laterally rotates the hip

Front

Gastrocnemius

Back

Plantar flexes the foot and flexes the knee