!�5Microprocessor, Nerve cell, Circuitry, Piston, Gear, Joint, Muscle fiber, Tendon, Bone, Synapse, Axon, Myelin sheath, Motor neuron, Sensory receptor, Eye, Lens, Retina, Cornea, Blood vessel, Capillary, Vein, Artery, Kidney, Bladder, Uterus, Ovarian follicle, Testicle