Definitions for dermal papillae
der·mal papil·lae

WikipediaRate this definition:0.0 / 0 votes

1. dermal papillae

   The dermis or corium is a layer of skin between the epidermis (with which it makes up the cutis) and subcutaneous tissues, that primarily consists of dense irregular connective tissue and cushions the body from stress and strain. It is divided into two layers, the superficial area adjacent to the epidermis called the papillary region and a deep thicker area known as the reticular dermis. The dermis is tightly connected to the epidermis through a basement membrane. Structural components of the dermis are collagen, elastic fibers, and extrafibrillar matrix. It also contains mechanoreceptors that provide the sense of touch and thermoreceptors that provide the sense of heat. In addition, hair follicles, sweat glands, sebaceous glands (oil glands), apocrine glands, lymphatic vessels, nerves and blood vessels are present in the dermis. Those blood vessels provide nourishment and waste removal for both dermal and epidermal cells.

WikidataRate this definition:3.0 / 2 votes

1. Dermal papillae

   In the human skin, the dermal papillae are small, nipple-like extensions of the dermis into the epidermis. At the surface of the skin in hands and feet, they appear as epidermal or papillary ridges. Blood vessels in the dermal papillae nourish all hair follicles and bring nutrients and oxygen to the lower layers of epidermal cells. The pattern of ridges they produce in hands and feet are partly genetically determined features that develop before birth. They remain substantially unaltered throughout life, and therefore determine the patterns of fingerprints, making them useful in certain functions of personal identification. The dermal papillae are part of the uppermost layer of the dermis, the papillary dermis, and the ridges they form greatly increase the surface area between the dermis and epidermis. Because the main function of the dermis is to support the epidermis, this greatly increases the exchange of oxygen, nutrients, and waste products between these two layers. Additionally, the increase in surface area prevents the dermal and epidermal layers from separating from each other by strengthening the junction between them.

How to pronounce dermal papillae?

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How to say dermal papillae in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of dermal papillae in Chaldean Numerology is: 4

2. Pythagorean Numerology

   The numerical value of dermal papillae in Pythagorean Numerology is: 8

References

1. ^ Wikipedia
   https://en.wikipedia.org/wiki/Dermal_Papillae
2. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=dermal papillae