Cerrar
the interaction system
Stimulus
Receptors
External receptors
Mechanoreceptors
Thermoreceptors
Chemoreceptors
Nocireceptors
Photoreceptors
Processing information
The nervous system
The endocrine system
Smell
Odours
Touch
How tactile sensations reach the brain?
Taste
How tastes reach the brain?
Hearing
The human ear
