What is the best definition of the epidermis?

What is the best definition of the epidermis?

Epidermis: The upper or outer layer of the two main layers of cells that make up the skin.

What is the meaning of epidermal in biology?

The epidermis is a protective outer covering of many plants and animals. It may be comprised of a single layer, as in plants, or of several layers of cells on top of the dermis, as in those of vertebrate animals. Epidermis (biology definition): the outermost portion of the skin or integument.

What is the definition of epidermis quizlet?

Epidermis – Basic. most superficial layer of the skin, consists of epithelial tissue. resists abrasion on skin’s surface and reduces H2O loss. Dermis – Basic. Layer of connective tissue.

What is an example of epidermis?

Epidermis is defined as the outer layer of skin, cells or tissue. The skin on your body is an example of epidermis. The outermost layer of cells covering the leaves and young parts of a plant.

Is epidermis a plant or animal?

Epidermis, in botany, outermost, protoderm-derived layer of cells covering the stem, root, leaf, flower, fruit, and seed parts of a plant. The epidermis and its waxy cuticle provide a protective barrier against mechanical injury, water loss, and infection.

Why is the epidermis?

The epidermis layer provides a barrier to infection from environmental pathogens and regulates the amount of water released from the body into the atmosphere through transepidermal water loss….

What is epidermis in human body?

The epidermis, the outermost layer of skin, provides a waterproof barrier and creates our skin tone. The dermis, beneath the epidermis, contains tough connective tissue, hair follicles, and sweat glands.

What are some synonyms for the word epidermis?

SEE SYNONYMS FOR epidermis ON THESAURUS.COM. Anatomy. the outer, nonvascular, nonsensitive layer of the skin, covering the true skin or corium. Zoology. the outermost living layer of an animal, usually composed of one or more layers of cells. Botany. a thin layer of cells forming the outer integument of seed plants and ferns.

Is the epidermis the protective layer of the skin?

[ĕp′ĭ-dûr′mĭs] The protective outer layer of the skin. In invertebrate animals, the epidermis is made up of a single layer of cells.

Where are the epidermis located on a plant?

The outer layer of cells of the stems, roots, and leaves of plants. In most plants, the epidermis is a single layer of cells set close together to protect the plant from water loss, invasion by fungi, and physical damage. The epidermis that is exposed to air is covered with a protective substance called cuticle.

What does it mean to have an infection of the epidermis?

Seborrheic dermatitis, like dandruff, is due to unknown triggers, and it produces patches of red greasy skin with a white crust that flakes off. This is an infection of the epidermis, but it can extend down into the skin layer below the epidermis, called the dermis.

What does epidermis mean in anatomy or science?

Epidermis ( epi – dermis): The epidermis is the outermost layer of the skin , composed of epithelial tissue. This layer of skin provides a protective barrier and serves as the first line of defense against potential pathogens .

What is the difference between an epidermis and an epithelium?

The main difference between epidermis and epithelium is that epidermis is the outermost protective layer of the skin of animals whereas epithelium is one of the four types of tissues in the animal body, which lines the internal and external surfaces of the body. Furthermore, the epidermis is a type of epithelial tissue, primarily responsible for protection, while epithelium covers parts of the body, providing protection.

What are the roles of the epidermis and dermis?

Skin layers Epidermis. Main roles: makes new skin cells, gives skin its color, protects the body. Basic diagram of skin’s structure. Dermis. Main roles: makes sweat and oil, provides sensations and blood to the skin, grows hair. Subcutaneous tissue. Main roles: attaches dermis to the body, controls body temperature, stores fat.

What are the differences between the dermis and the epidermis?

Dermis and epidermis are basically protective outer layers of the body. The main difference between dermis and epidermis is that dermis is a tissue below the epidermis, containing living cells whereas epidermis is the outermost part of the body, protecting it from dehydration, trauma, and infections.