Skin - heaviest organ in the body
– Epidermis is the outer layer of the skin, which is made up of dead skin cells
– Dermis is below the epidermis and contains four kinds of mechanoreceptors
that respond to stimuli such as pressure, stretching, and vibration.
Mechanoreceptors
Merkel receptor - disk-shaped receptor located near the border between the
epidermis and dermis
Meissner corpuscle - stack of flattened disks in the dermis just below epidermis
Ruffini cylinder - branched fibers inside a cylindrical capsule
Pacinian corpuscle - onion-like capsule located deep in the skin