The film explores the muscular system of the human body, ... Human Anatomy: Muscular System - Skeletal Muscles, Biceps & Triceps. Posted: March 20, 2025 | Last updated: July 11, 2025.

The largest muscle in the human body is the Gluteus Maximus. It is responsible for keeping your posture upright, and is the principal antigravity force working when you walk up stairs.

The robot’s legs actually contain the same number of muscles that a real human being’s legs use to walk, but the Suzumori Endo humanoid can’t go for a stroll just yet without additional support.