Explore 3D Human Anatomy Studio

Available Anatomical Systems in the 3D Viewer

• 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.