NEET PG DENTAL EXAM

Detailed explanation-1: -The thickness of each layer of the skin varies depending on body region and categorized based on the thickness of the epidermal and dermal layers. Hairless skin found in the palms of the hands and soles of the feet is thickest because the epidermis contains an extra layer, the stratum lucidum.

Detailed explanation-2: -The stratum lucidum (Latin, ‘clear layer’) is a thin, clear layer of dead skin cells in the epidermis named for its translucent appearance under a microscope. It is readily visible by light microscopy only in areas of thick skin, which are found on the palms of the hands and the soles of the feet.

Detailed explanation-3: -The stratum corneum is a semipermeable barrier that serves as a physiological barrier from external agents including bacteria, fungi, and chemicals while preventing the loss of fluids and solutes from the internal environment. It is thickest on the palms and soles.

Detailed explanation-4: -The presence of the stratum lucidum makes the palmar and plantar skin characteristically thick. The skin in other body parts lacks stratum lucidum. Its presence indicates the importance of having thicker skin to protect against frequent exposure to mechanical stress.