Is stratum lucidum present in epidermis?

The stratum lucidum is a smooth, seemingly translucent layer of the epidermis located just above the stratum granulosum and below the stratum corneum. This thin layer of cells is found only in the thick skin of the palms, soles, and digits.

What are the 4 layers of epidermis?

Four layers of the epidermis: Stratum basale (SB), Stratum spinosum (SS), Stratum granulosum (SG), Stratum corneum (SC). There exists a thin layer of translucent cells in thick epidermis called “stratum lucidum.” It represents a transition from the SG and SC and is not usually seen in thin epidermis.

What is the function of eleidin in the stratum lucidum?

Eleidin is clear intracellular protein which is present in the stratum lucidum of the skin. Eleidin is a transformation product of the amino acid complex keratohyalin, the lifeless matter deposited in the form of minute granules within the protoplasm of living cells.

Where is the stratum lucidum found?

The stratum lucidum (Latin, ‘clear layer’) is a thin, clear layer of dead skin cells in the epidermis named for its translucent appearance under a microscope. It is readily visible by light microscopy only in areas of thick skin, which are found on the palms of the hands and the soles of the feet.

What is the purpose of eleidin?

Eleidin is a transformation product of the amino acid complex keratohyalin, the lifeless matter deposited in the form of minute granules within the protoplasm of living cells. Eleidin is then converted to keratin in the stratum corneum.

What does the epidermis do?

Your epidermis is the outermost layer of skin on your body. It protects your body from harm, keeps your body hydrated, produces new skin cells and contains melanin, which determines the color of your skin.

What is stratum lucidum?

Stratum lucidum, 2-3 cell layers, present in thicker skin found in the palms and soles, is a thin clear layer consisting of eleidin which is a transformation product of keratohyalin.

What is the stratum lucidum of the epidermis?

Section of epidermis. The stratum lucidum (Latin for “clear layer”) is a thin, clear layer of dead skin cells in the epidermis named for its translucent appearance under a microscope. It is readily visible by light microscopy only in areas of thick skin, which are found on the palms of the hands and the soles of the feet.

What are the strata of the epidermis?

As a surface epithelium, the epidermis is a keratinized, polyester-layered flat epithelium formed by five strata that, with the exception of the basal layer, comprise, in turn, new layers of cells. The name and order of the strata, from the inside to the surface of the skin, is the following:

How does the thickness of the stratum lucidum affect its function?

The thickness of the stratum lucidum is controlled by the rate of mitosis of the epidermal cells. The stratum lucidum is responsible for the capability of the skin to stretch. It also contains a protein that is responsible for the degeneration of skin cells.

What is the difference between stratum lucidum and stratum corneum?

Stratum lucidum,2-3 cell layers, present in thicker skin found in the palms and soles, is a thin clear layer consisting of eleidin which is a transformation product of keratohyalin. Stratum corneum,20-30 cell layers, is the uppermost layer, made up of keratin and horny scales made up of dead keratinocytes, known as anucleate squamous cells.