The four cerebral lobes and five major structures of the limbic system in a medial sagittal view.

The six primary types of cutaneous tactile and sensory receptors distributed throughout the layers of human skin.

Key geological features and structural components formed during the tectonic folding of continental crust.

Départements and régions in France

The key stages and components of a nuclear fission reaction, from neutron capture to fission fragments and energy release.

The structural organization and connective tissue layers of skeletal muscle from belly to myofibril.

The major internal and root structures visible in a cross-section of the human spinal cord.

The main organelles and structural components of a eukaryotic plant cell.

The nine major substrate molecules and intermediates of the citric acid cycle in sequential order.