Triceps and biceps muscles in the upper arm are opposing muscles that move the arm at the elbow in opposite directions.
Biceps muscle, Arm Flexion, Shoulder Movement, & Forearm Rotation
Muscle Attachments and Actions
How Muscles Allow Movement (A-level Biology) - Study Mind
Biceps: Anatomy, Function, and Treatment
Arm Workouts, Exercises for Muscle & Strength
Forces and Torques in Muscles and Joints
My shoulders, biceps, and triceps look pretty defined and muscular from the front, but from the side they look like a blob, unless I flex. How can I fix this? - Quora
5 Reasons Your Arms Are NOT Growing
MUSCLES: FOREARM MOVEMENT (3) Flashcards
Examples of Skeletal Muscles, Their Function and Characteristics
Elbow Anatomy, Elbow Pain
Do Pull Ups Work Triceps? [Sports Science Reveals the Answer], by Aqfsportscom
Distal Biceps Tendon Rupture, Symptoms, Treatment
Contracting and relaxing of arms biceps and triceps muscles outline diagram - VectorMine
Mathematics, Free Full-Text