Can you label the major muscles of the human body? Click each one on the diagram — from the deltoid to the quadriceps — and test your anatomy knowledge.
The human body contains more than 600 named muscles, working together in a constant choreography that lets us move, breathe, speak, and even smile. Some are instantly recognisable — the biceps bulging when you flex, the six-pack of the rectus abdominis, the powerful quadriceps at the front of the thigh — while others do their work quietly beneath the surface, like the sartorius running diagonally down the leg or the serratus anterior fanning across the ribs.
Each muscle has a Latin name that often hints at its role or shape: pectoralis comes from pectus (chest), sternocleidomastoid attaches to the sternum, clavicle and mastoid process of the skull, and the tensor fasciae latae literally means "tightener of the broad band". This vocabulary has barely changed since the anatomists of the Renaissance dissected cadavers to map the body for the first time.
Learning to place the major muscles on a diagram is the foundation of sport science, physiotherapy, medicine and dance. Think you can locate them all on a human silhouette? See how many of the major muscles you can identify.