A stylized graphic featuring a femur bone, a flexing muscular arm, a skull, and a ribcage.

Can you conquer this skeleton and muscles trivia before your endurance runs out?

Human Body & Anatomy

ZapStacks

5

Zaps

105

Your 206 bones and 600+ muscles aren't just anatomy; they're your leverage and your armor. From the stapes' vibration to the gluteus maximus' power, every fiber earns its keep. Can you name the architecture holding you together under pressure, or will your resolve snap?

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ZapStacks

Stylized, geometric drawings of a human skull, ribcage, pelvis, and a long bone.

Bones of the Body

25 Zaps · Easy

A geometric skull with a detached orange jaw, a magnifying glass, and a gold gear.

20 Zaps · Medium

A stylized graphic of a human torso skeleton, including the rib cage, spine, and pelvis, rendered in orange, tan, and black.

20 Zaps · Hard

Stylized anatomical diagrams of a knee, hip, and spine connected by dark nerve pathways.

Joints & Ligaments

20 Zaps · Hard

A human torso, a long bone, and a muscle cross-section are shown next to a small silhouette of a person running.

Skeletal Muscles

20 Zaps · Hard