3D Human Body Atlas

About the Human Body Atlas

This atlas takes the BodyParts3D reference anatomy apart into 2,234 individually selectable pieces grouped into 15 systems. Orbit, zoom, toggle systems, search a structure by name, isolate it, or explode the whole body into its parts.

Systems in the model

• Skeleton — Bones form the supporting framework of the body, protect organs, and provide attachment points for muscles. Their internal tissue also stores minerals and produces blood cells.
• Muscles — Skeletal muscles generate movement by pulling on their attachments. Together with tendons, they move joints, stabilize posture, and produce heat.
• Heart — The heart is a muscular pump with four chambers. Its valves direct blood forward through the pulmonary and systemic circuits.
• Sensory organs — These structures contribute to special senses, including sight, hearing, and balance. Their specialized tissues detect stimuli and work with the nervous system to convey information.
• Arteries — The heart drives blood through the circulation. Arteries carry blood away from the heart to supply tissues or, in the pulmonary circuit, to the lungs.
• Veins — Veins return blood toward the heart. Superficial and deep networks collect blood from the tissues; the pulmonary veins bring oxygenated blood back from the lungs.
• Nervous system — The brain, spinal cord, and peripheral nerves carry and process signals. They support sensation, movement, coordination, and automatic regulation of body functions.
• Respiratory — The airways conduct air to the lungs, where oxygen and carbon dioxide move between air and blood. Breathing depends on pressure changes produced by respiratory muscles.
• Digestive — The digestive tract breaks down food, absorbs nutrients and water, and moves waste onward. Accessory organs contribute bile and digestive enzymes.
• Urinary — The kidneys filter blood and regulate fluid, electrolyte, and acid–base balance. Urine travels through the ureters to the bladder and exits through the urethra.
• Lymphatic — Lymphatic vessels return excess tissue fluid to the circulation. Lymph nodes and other lymphoid organs support immune surveillance and responses.
• Endocrine — Endocrine organs release hormones into the blood to coordinate processes such as metabolism, growth, stress responses, and reproduction.
• Reproductive — The male reproductive structures represented here contribute to sperm production, maturation, transport, and the production of sex hormones.
• Body surface — The body surface provides an outer anatomical reference. The integumentary system forms a protective barrier and contributes to sensation and temperature regulation.
• Connective tissue — Cartilage, ligaments, and other connective tissues support, connect, and separate structures. Their roles include stabilizing joints and distributing mechanical loads.

You can link straight to a structure, for example /en/human-atlas?structure=heart

Educational content; not a substitute for medical advice.