Английский язык для медиков

Reticular layer is the deeper dermal layer and consists of coarse collagen bundles intertwined with elastic fibers in a gel matrix. This layer is a typical dense irregular connective tissue.

HYPODERMIS: this layer of loose vascular connective tissue is infiltrated with adipocytes and corresponds to the superficial fascia of gross anatomy. However, since it contains the deepest portions of the cutaneous glands and hairs, it is also an important part of the skin. The hypoder—mis fastens the skin to underlying muscles and other structures.

New words

dermis – дерма connective – соединительный membrane – мембрана junction – соединение

to be characterized by – характеризоваться чем—то numerous – значительный

to increase – увеличивать

surface – поверхность area – площадь epidermal – эпидермальный thick – толстый skin – кожа

papillary – папиллярный devoid – происходить meshwork – ячеистая сеть coarse – грубый bundle – связка interwine – сплетаться bring – приносить to consists of – состоять из to contain – содержать collagen – коллагеновый adipocyte – жировая клетка

6.

 Cutaneous appendages

Cutaneous appendages are all derivatives of the epidermis.

Eccrine (merocrine) sweat glands are simple, coiled, tubular glands that are widely distributed over the body. Secretory portions are tightly coiled and consist of a single layer of columnar—like pyramidal cells.

Duct portions, composed of two cuboidal cell layers, are corkscrew—shaped and open onto the epidermal surface.

These glands are important in thermal regulation.

Control of the eccrine glands is mainly by the innerva—tion of cholinergic fibers.

Apocrine sweat glands are also simple, coiled, tubular glands but are much less abundant in their distribution than eccrine glands. They can be found in the axillary, ar—eolar, and anal regions.

Secretory portions of these glands are composed of a single layer of cuboidal or columnar cells.

They are larger and have a much wider luminal diameter than eccrine sweat glands. Myoepithelial cells surround the secretory cells within the basement membrane and contract to facilitate secretion.

Duct portions are similar to those of eccrine sweat glands but open onto hair follicles instead of onto the epidermal surfaces.

Functions of these glands in humans is not at all clear.