Which of the following cells and their functions are correctly matched?

A) Melanocytes — protects cells in the stratum corneum from damaging effects of sun's rays
B) Dendritic cells — activate the immune system
C) Tactile cells — protection D)Keratinocytes — provide sense of touch and pressure

The correctly matched cells and their functions are -

A) Melanocytes - protects cells in the stratum corneum from damaging effects of sun's rays

B) Dendritic cells - activate the immune system

Explanation:

The melanocyte cells are produced from the stratum basale of the epidermis. They produce melanin pigments that give color to skin, hair. It also protects the epidermal layer from ultraviolet (UV) radiation. The stratum corneum is the upper and outer layer of the epidermis. The melanocyte cells protect this layer from the sun's harmful effect.

The dendritic cells are the antigen-presenting cells of the immune system. They are abundantly present in the skin and helps in the stimulation of T cells during any antigens present. They are phagocytic and activate immunity.

The tactile cells are touch receptors of the skin. These are similar to the Merkel cells and light-sensitive cells.  

The keratinocytes synthesis keratin and also they produce glycolipids in the stratum spinosum. This glycolipid helps in preventing water loss from the skin. It also makes skin waterproof as glycolipids are water-repelling molecules.

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