The triceps make up two-thirds of your higher arm measurement, and so they’re constructed from 3 heads:
1️⃣ Lengthy head – offers your arm thickness and works in overhead extensions.
2️⃣ Lateral head – the “horseshoe” form, activated in pushdowns and heavy presses.
3️⃣ Medial head – hidden however all the time working as a stabilizer.
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