Tricep exercises may be overlooked in favour of the better known biceps, but they're arguably the most important muscle to train on arm day, as triceps make up two thirds of your upper arm.

let’s take a closer look at the anatomy behind those coveted biceps. The biceps brachii – commonly known as the biceps – is a ...

For example, your elbow joint has two muscles that move your forearm up or down. These are the biceps on the front of the upper arm and the triceps on the back of the upper arm: to raise the ...