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Additional
dermis
English Wikipedia - The Free Encyclopedia
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Dermis
The
dermis
is a layer of
skin
between the
epidermis
(with which it makes up the
cutis
) and
subcutaneous tissues
, that consists of
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
,
apocrine glands
,
lymphatic vessels
and
blood vessels
are present in the dermis. Those blood vessels provide nourishment and waste removal for both dermal and epidermal cells.
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