Natty_Yogi on Instagram: "Day - 1 . ✅The biceps (biceps brachii) is a large, two-headed muscle on the front of your upper arm, crucial for bending your elbow (flexion) and twisting your forearm (supination, like turning a doorknob), helping with lifting, carrying, and stabilizing the shoulder joint. It runs from the shoulder blade (scapula) down to the forearm bone (radius) . #biceps #workout #fitness #reels #information"