dermal papillae, are small, nipple-like protrusions of the dermis that reach into the epidermis, bringing food and oxygen to the lower layers of epidermal cells. In addition, a papilla nourishes every hair follicle. Rows of papillae protruding from the dermis into the epidermis form ridges that create patterns on the skin of the hands, feet, and body. These papillary ridges on the fingertips are responsible for fingerprints. These ridges develop sometime before birth. Not only is the pattern unique for each individual, but also it never changes except to grow larger.
Collagen holds cells together.
tight junction
tight junctions
Usually we call this a "hug."
Laminin
The epidermal cells of sponges are responsible for cell adhesion and maintenance of their shape and structure. The epidermis is composed of pinacocytes (epidermal cells) which are flattened cells in the sponge's body wall.
Epidermal cells receive nutrients and oxygen from the blood vessels in the dermis.
Lignin holds plant cells together.
An epidermal cell is a cell that is part of the outer layer of an organism. For example, in humans, skin cells are epidermal. Leaves on plants have epidermal layers on the top and bottom of the leaf.
Leaf epidermal cells are examined by making peelings of epidermal cells from both sides. Normally these peelings are stained and examined under the compound microscope.
The cell membrane holds a cell together.
The epidermal cells of sponges are responsible for cell adhesion and maintenance of their shape and structure. The epidermis is composed of pinacocytes (epidermal cells) which are flattened cells in the sponge's body wall.
Langerhans cells
Epidermal cells are supplied with nutrients from blood vessels in the
Epidermal cells receive nutrients and oxygen from the blood vessels in the dermis.
Lignin holds plant cells together.
flagella...
cadherins
HIV mainly attacks cells in the immune system. I'm not aware of a major impact on skin (epidermal) cells.
Ependymal cells
An epidermal cell is a cell that is part of the outer layer of an organism. For example, in humans, skin cells are epidermal. Leaves on plants have epidermal layers on the top and bottom of the leaf.
Leaf epidermal cells are examined by making peelings of epidermal cells from both sides. Normally these peelings are stained and examined under the compound microscope.