How Do You Spell PAPILLARY LAYER?

1. The papillary layer refers to the uppermost layer of the dermis, lying just beneath the epidermis in the skin. It is named after its characteristic appearance of small finger-like projections called papillae that extend into the epidermis. These papillae form the distinctive pattern of ridges on the palms of the hands, soles of the feet, and fingertips, commonly known as fingerprints.

   Composed of loose connective tissue, the papillary layer is responsible for various functions in the skin. It provides the epidermis with essential nutrients through its rich blood supply, as well as oxygen and immune cells. Additionally, it plays a role in temperature regulation by facilitating the transfer of heat from the capillaries to the skin surface.

   Furthermore, the papillary layer contains numerous sensory nerve endings, including touch receptors, making it crucial for the sense of touch. It allows individuals to perceive textures, pressure, and pain sensations, enabling tactile discrimination.

   The papillary layer also participates in wound healing. Its close connection to the epidermis facilitates the migration of immune cells and fibroblasts to the site of injury, aiding in the repair process.

   Overall, the papillary layer serves as an important intermediary between the epidermis and the deeper layers of the dermis. Its unique structure and functions contribute to the skin's overall integrity and functionality.

2. • Corpus papillar.

   • Pars papillaris, the outer layer of the corium, marked on its surface with numerous papillae dovetailing with the corresponding depressions on the contiguous surface of the rete Malpighii.

   A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.

Common Misspellings for PAPILLARY LAYER

The term "papillary layer" comes from the combination of two words: "papilla" and "layer".

1. "Papilla" originates from Latin, where "papilla" means "nipple" or "small swelling". It comes from the diminutive form of "papula", meaning "pimple" or "pustule". The Latin word "papula" can be traced back to an older form, "papulae", which is related to the Proto-Indo-European root "*pap-", denoting swelling or bulging.

2. "Layer" is derived from Middle English "layere", which was itself derived from Old French "laie" meaning "stratum" or "bed". The Old French term has roots in Latin "lacuna", which means "pond" or "pool".