The red line is the wavelength
The blue line is the amplitude
Sensory nerve endings in the fingers include Meisnner's corpuscles, Pacinian corpuscles, free nerve endings, Merkel discs, and Ruffini endings.
Appalachian: Two continents colliding.
North American Cordillera: Terrane accretion
Aleutian plate: Oceanic convergence
Andes mountain range: An oceanic plate and continental plate colliding.
