Below the shoulders and aside from the muscle groups which support them, the biceps brachii and the triceps brachii make up the bulk of your upper arms.
If you want big arms, what matters more the biceps or the triceps? - Quora
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If you want big arms, what matters more the biceps or the triceps? - Quora
If you want big arms, what matters more the biceps or the triceps? - Quora
How often should biceps and triceps be trained for bigger arms? - Quora
What causes biceps/triceps to feel weak but look big when working out in the gym? - Quora
Why are biceps and triceps muscles called antagonistic muscles? - Quora
If you want big arms, what matters more the biceps or the triceps? - Quora
Are biceps and triceps different kinds of muscles? What exactly do the muscles look like? - Quora
How to target the outer muscle 'between' the bicep and tricep - Quora
What causes the feeling of your tricep about to pop when doing bicep curls? - Quora