The diagram illustrates sensory receptors in the skin. What structure does "E" represent?
A) Meissner corpuscles
B) Free nerve endings
C) Ruffini end organ
D) Pacinian corpuscle
E) Merkel disks

Sensory Receptors

Specific cells or nerve terminations that react to environmental alterations by creating electrical signals.

Ruffini End Organ

Sensory receptors located in the skin and tendons that detect skin stretch and joint activity, contributing to the sense of proprioception.

Merkel Disks

Slow-adapting tactile receptors in the skin that respond to light touch and pressure.