Search Results for: layers
Triploblastic
Triploblastic Definition A triploblastic animal had three main layers of tissue during embryonic development. The central... Read More
Simple squamous epithelium
Simple Squamous Epithelium Definition Simple squamous epithelium, also known as simple squamous epithelial tissue or... Read More
Peritoneum
What is the Peritoneum? The term peritoneum refers to the serous membrane that constitutes the biologically active inner... Read More
Pluripotent
Pluripotent Definition What is pluripotent? In biology, the term "pluripotent" means capable of developing into... Read More
Bone matrix
Bone Matrix Definition Bone matrix refers to the matrix component of bone tissue. It provides the structural framework and... Read More
Epithelium
An epithelium is a type of animal tissue made up of densely packed cells (called epithelial cells) that rest on a basement... Read More
Embryology
Embryology Definition Embryology is a branch of biology that deals with the topics concerning gamete formation... Read More
Myocardium
Myocardium Definition What is the myocardium of the heart? It is the muscular middle layer of the heart that is... Read More
Stratum corneum
Definition noun The outermost layer of the epidermis comprised of corneocytes and accounts for most of the protective... Read More
Crown of head
Crown of Head Definition The crown of the head is the upper dorsal part (or area) of the head. Several creatures have... 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
Alimentary canal
Definition of Alimentary canal What is the alimentary canal? The alimentary canal is a muscular hollow continuous tubular... Read More
Stratum granulosum
Definition noun The thin layer of the epidermis comprised of granular keratinocytes that migrated from the stratum... Read More
Stratum germinativum
Definition noun The innermost layer of the epidermis comprised of keratinocyes capable of proliferating by mitosis,... Read More
Integumentary system
Integumentary System Definition The integumentary system is the outermost layer of the body. The animal body, in... Read More
Hyaline cartilage
Hyaline Cartilage Definition Before we define hyaline cartilage, let us understand what cartilage is. What is cartilage? Is... Read More
Stratum spinosum
Definition noun The thin layer of the epidermis between stratum basale and stratum granulosum, and comprised of... Read More
Stratum lucidum
Definition noun The thin, clear layer of the epidermis comprised of keratinocytes filled with eleidin proteins, and occurs... 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
Cell membrane
Cell Membrane Definition Just like any non-living body possesses a plastic or paper packaging material that keeps the... Read More
Nail matrix
Definition noun The area consisting of mitotically active layer of cells at the base of the fingernail or the toenail and... 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
Kingdom Animalia
Kingdom Animalia Definition Each person can say that they know of or can name at least one animal. However, do people know... Read More
Fibrocartilage
What Is Fibrocartilage? Fibrocartilage is the strongest transitional connective tissue made up of collagen fibers and... Read More
Sarcolemma
Sarcolemma Definition What is the sarcolemma? It is the thin, transparent, extensible plasma membrane of the muscle cell.... Read More
Phospholipid bilayer
Definition noun The two layers of phospholipids arranged in such a way that their hydrophobic tails are projecting inwards... Read More
Filtration
Filtration Definition What is filtration? Filtration is separating a solid from a fluid through a porous material that... Read More
Columnar epithelium
Definition noun, plural: columnar epithelia An epithelial tissue comprised of columnar epithelial cells, with or without... Read More
Secondary cell wall
Definition noun plural: secondary cell walls ˈsɛkənˌdɛɹi sɛl wɔːl The layer of the plant cell wall that forms... Read More