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Cardiovascular
Heart chambers and valves, the great vessels, and the circulation.
3 illustrations
Nervous
Brain regions, the spinal cord, and peripheral nerve pathways.
3 illustrations
Skeletal & Muscular
Bones, joints, and the muscles that move them.
3 illustrations
Digestive
From the oral cavity through the gut to the accessory organs.
3 illustrations
Respiratory
Upper airway, tracheobronchial tree, and the lungs.
3 illustrations
Immune & Lymphatic
Lymphoid organs, immune cells, and the response they mount.
3 illustrations