What is a block of epithelium?
Buboid epithelium is a type of tissue in animal anatomy. It is a very important type of tissue in the human body. The kabid epithelium is found in the kidneys, in the parts of the eye and thyroid gland, in ovaries and testicles, in the parts of the brain and lungs and in the pipeline of the exocrine glands.
Cuidal epithelium is just one type of epithelial tissue in the body. The epithelium is a tissue that plays surfaces and cavities throughout the body, and the flower is thus named because tissue cells have roughly the same height, width and depth, although it may not be exactly in the shape of a cube. Each cell has a spherical core in its center. Other types of epithelium are either in the shape of a disk, while cell width exceeding the height of the cells or in the shape of a column, while the height of the cells exceeds their width. Cutoidal epithelium can be simple, consisting of only one layer of cells or stratified, consisting of multiple layers.
The epithelium is one of the main types of tissues in the tissue body, the others are connective, muscle and nerve tissue. Epithelial tissues are AVAscular, which means that they are not supplied by blood vessels, even if nerves are supplied. The epithelium receives its nutrition from the connective tissue that is the basis. The epithelial and connective tissues are separated by the basement membrane, a thin sheet consisting mainly of collagen fibers.
Simple block epithelium limits nephron, basic structural unit of the kidney, as well as ovarian surface and eye and thyroid parts. In the proximal intricate kidney tubule, a simple cure epithelium has a microvilli, a small projection similar to hair that helps in absorption by maximizing the cell surface area. The simple block epithelium is also located in the ventricular system, a central nervous system containing cerebrospinal fluid and vbronchioles lungs.
Simple cutoid epithelial tissue has the function of secretion and absorption or release and receiving chemicals as needed. Like the whole epithelKé protective function. Simple block epithelium is also responsible for the production of egg cells and sperm.
stratified block epithelium is rare than simple variety and usually occur in the pipeline of exocrine glands such as salivary glands, sweat glands and mammary glands. The exocrine glands secrete the substances into their channels that release the substances into the external environment. They differ from the endocrine glands in that the substances that eliminate are not hormones.