Sensory impulse

Sensory impulse
Sensory impulse: phenomenon of polarization and depolarization through which the abnormal acticity of a fibre spreads through a nerve.
Sensory neuron: nerve cord carrying sensory stimuli to the brain.
Dendrite: cytoplasmic extension of a nerve cell.
Cell body: part of the nerve cell between the axon and the dendrite.
Axon: extension of a neuron.
Motor neuron: nerve that produces muscular activity.
Motor end plate: muscular organ that becomes active in response to stimuli.
Myelin sheath: envelope of phosphorated fats.
Receptor (free nerve ending): receiver of nervous stimuli.

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 : Nerve impulse