The brain and their functions: Frontal Lobe, Parietal Lobe, Occipital Lobe, Cerebellum and Temporal Lobe. It also discusses the right and left hemispheres of the brain and what they are responsible for controlling.
Coloured scanning electron micrograph (SEM) of tendon fibres. Some of the fibres have been teased apart. These fibres are made from collagen. The parallel alignment of the fibres make tendons inelastic but flexible.
Each kidney contains thousands of glomeruli, tiny knots of blood vessels that filter large molecules out of urine. Fractal branching patterns in the circulation of blood inside the kidney ensure that the filtration process is as efficient as possible.