MICROANATOMY

Detailed explanation-1: -The peripheral nervous system detects different somatosensory stimuli including pain, temperature and touch. Merkel receptors are touch receptors composed of sensory afferents and Merkel cells. The role that Merkel cells play in light touch responses has been the center of controversy for over 100 years.

Detailed explanation-2: -A cutaneous receptor is the type of sensory receptor found in the skin ( the dermis or epidermis). They are a part of the somatosensory system. Cutaneous receptors include mechanoreceptors (pressure or distortion), nociceptors (pain), and thermoreceptors (temperature).

Detailed explanation-3: -The dermis is below the epidermis. Merkel cells are normally in the epidermis. In MCC, they grow and invade into the dermis and deeper structures and vessels.