Neuron: cell composed of a cell body, an axon and dendrites, forming a functional unit of the nervous system.
Dendrite: cytoplasmic extension of a nerve cell.
Axon: extension of a neuron.
Terminal arborisation: final division.
Motor end plate: muscular organ that becomes active in response to stimuli.
Muscle fibre: set of cells making up a muscle.
Myelin sheath: envelope of phosphorated fats.
Cytoplasm: gel contained in a cell.
Nucleus: central part of a cell, containing the chromosomes.
Cell body: part of the nerve cell between the axon and the dendrite.

Photo :

EN : Human skin
FR : Peau humaine
ES : Piel humana


Humain skin is the largest organ of the integumentary system made up of multiple layers of epithelial tissues that guard underlying muscles and organs. As the interface with the surroundings, skin plays the most important role in protecting.

Animation : Neuron

Thanks to YouTube for allowing us to watch this video.