💪 MUSCLES: 600 OF THEM
PAGE 1 OF 5 · MUSCLES MOVE YOU
MOVE
MORE MUSCLES THAN YOU THINK
Muscles turn chemical energy into movement. You have more than 600 skeletal muscles attached to bones by tough cords called tendons. They let you walk, write, blink, and smile. Some face movements use many small muscles working together. A big frown often uses more muscles than a simple smile, though exact counts vary between people. Muscles never push bones directly. They only pull, so pairs work in opposition to bend and straighten joints.
⚡ DID YOU KNOW?
The masseter jaw muscle can generate strong bite force for its size, helping you chew tough food.
FLEX!
FACE
😊 Dozens of tiny face muscles create expressions that show how you feel to friends.
😠 Scrunching your brow uses more separate muscles than a quick relaxed grin.
😠 Scrunching your brow uses more separate muscles than a quick relaxed grin.
TEAM
🔄 Biceps bend the elbow while triceps straighten it, like partners on a seesaw.
🦴 Muscles only pull toward their centre, never push bones away.
🦴 Muscles only pull toward their centre, never push bones away.