Search Results for: epidermis
Integumentary system
Integumentary System Definition The integumentary system is the outermost layer of the body. The animal body, in... Read More
Plant Tissues
Plants are composed of three major organ groups: roots, stems, and leaves. As we know from other areas of biology, these... Read More
Malpighian layer
Definition noun The lower layer of epidermis consisting of non-keratinized, viable cells, in contrast to the outer (upper)... Read More
Keratinocyte
Definition noun, plural: keratinocytes The predominant type of cell in the epidermal layer of the skin Supplement The skin... Read More
Endomembrane system
Ever wondered how biomolecules are made within the cell and then they are released outside the cell for use by the body?... Read More
Stratum germinativum
Definition noun The innermost layer of the epidermis comprised of keratinocyes capable of proliferating by mitosis,... Read More
Stratum granulosum
Definition noun The thin layer of the epidermis comprised of granular keratinocytes that migrated from the stratum... Read More
Stratum lucidum
Definition noun The thin, clear layer of the epidermis comprised of keratinocytes filled with eleidin proteins, and occurs... Read More
Stratum spinosum
Definition noun The thin layer of the epidermis between stratum basale and stratum granulosum, and comprised of... Read More
Stratum corneum
Definition noun The outermost layer of the epidermis comprised of corneocytes and accounts for most of the protective... Read More
Cornification
Definition noun, plural: cornifications The process of forming a keratinized, horny layer of epidermis cornified,... Read More
Permanent Tattoo Means Permanent Immune Action Of Macrophages
Have you ever wondered why a permanent tattoo seemed to last forever? A simple assumption would be is that the ink could... Read More
Papillary dermis
Definition noun The more superficial layer of the dermis that intertwines with the rete ridges of the epidermis, and is made... Read More
Cork cambium
Cork Cambium Definition Cork cambium is a secondary meristematic tissue that has a pivotal role in secondary growth in... Read More
Mesophyll layer
Definition noun, plural: mesophyll layers (botany) The tissue in the interior of a leaf made up of photosynthetic... Read More
Macrophytes
Introduction Examples of Macrophytes. (Source: Canada's AquaticEnvironments) ... Read More
Dense irregular connective tissue
Dense Irregular Connective Tissue Definition Dense irregular connective tissue is one of the two major types of dense... Read More
Apical meristem
Definition noun, plural: apical meristems (botany) A type of meristematic tissue that is located at the tips or terminal... Read More
Parenchyma
Parenchyma Definition What does parenchyma mean? Let's define the word "parenchyma". Most of the functional tissues in... Read More
Seed Plants
There are two main subdivisions of seed plants—the ones without covered seeds, the gymnosperms, and the ones with covered... Read More
Langerhans cell
Definition noun, plural: Langerhans cells An antigen-presenting (dendritic) cell characterized by the presence of Birbeck... Read More
Brown algae
Brown Algae Definition Brown algae are algal species characterized by being multicellular and having a brown or... Read More
Phelloderm
Definition noun, plural: phelloderms (botany) A part of the periderm made up of cells produced inwardly by the cork... Read More
Plant cell
Plant Cell Definition A plant cell refers to any cell of a plant. It is the structural and functional unit of plants. Plant... Read More