Instead of trying to reinvent the human arm, German pneumatics supplier Festo decided to model a real one. The showcase product, called Airic’s_arm, has artificial bones which mimic real human ...

Read on to learn more about the muscles in the arm, their functions, and conditions that can affect the arm muscles.

Your arm muscles allow you to perform hundreds of everyday movements, from making a fist to bending your thumb. We’ll go over all the muscles in your upper arm and forearm as well as explain ...

The deltoid muscle in the upper arm is located near a cluster of lymph nodes — a critical component in the immune system. That's why many shots are administered there.

Arm stretches can improve posture, enhance range of motion, and build muscle. Here, fitness experts offer the best arm stretches and exercises to try at home.

It’s therefore important you incorporate exercises that switch up the angle of your arm so you can target the different muscle heads, thus building well-rounded, 3D arms.

3D virtual model of a Jurassic-era ammonite fossil shows internal muscles never previously observed. Credit: Lesley Cherns et al.

7 underarm exercises that strengthen often-forgotten arm muscles Trainers explain the importance of including underarm exercises into your upper body workouts, plus which ones to try for yourself.