PPT-Glandular tissue GLANDS

are cells or aggregations of cells specialized to secrete and excrete material Definition of secretion The process of production and release of a useful substance by a  gland or . Functions of the alimentary mucosa:. 1. . Barrier function: . The mucosa serves as a barrier to the entry of noxious substances, antigens, and pathogenic organisms.. 2. . . Immunologic function. : . Lymphatic tissue in the mucosa serves as a first line of defense of the body by the immune system.. Made of cells that secrete substances into ducts or body fluids. Almost always columnar and cuboidal epithelia. Exocrine vs Endocrine. Exocrine Glands: secrete their products into ducts that open onto surfaces (ex: skin, lining of digestive tract). Membrane epithelium becomes glandular epithelium when it . invaginates. / involutes into . the . tissue layer / layers below, forming a . gland. There are . two main types of gland. . They are . exocrine and endocrine. 9/23. What are the primary characteristics of the three types of muscle tissue?. What cell adhere to/connect with each other and the basement membrane?. How are glands classified?. What are the primary secretions?. Do Now. Chapter 5. Tissues. 1. . Explain . the 4 types of tissues.. 2. Identify . the different types of epithelial tissue.. 3. List . the locations of each type of epithelial tissue. . objectives. 1. . I. Introduction. . A. Introduction. A. Introduction. Cells . are organized into . layers or groups of similar cells with a common function called tissues. .. 2. Intercellular junctions connect . Biological Basis of Human . Behavior . :. Role of Nervous system and glandular system. Human Behaviour. The . capacity .  of mental, physical, emotional, and social . activities experienced . during the five . Cells are arranged in tissues that perform specialized structural and functional roles. Four Major Types of Tissue:. Epithelial. Connective. Muscle. Nervous. Introduction. General Characteristics. Covers free body surfaces. Glandular Specialized Epithelium. Specialized Epithelial Tissue are a class of epithelial tissues that have very specific and specialized functions and structures. This tissue is composed of cuboidal, columnar, ciliated columnar epithelial cells.. Parotid. A compound . tubulo. . acinar. gland. Serous type of gland. Myoepithelial. cells present. Intraepithelial glands found in main excretory ducts. The opening of the duct into the mouth cavity is lined with stratified sq. The thickness of the epidermis is varies according to the region of the body, reaching maximum thickness about 4mm in the back. Dermis contain two layers the outermost . papillary layer. and deeper . and their associated . extracellular substances(ECM). , which are specialized to carry out specific functions.. B. . Four Primary Tissues of the Body. 1. . Epithelium. 2. . Connective Tissue. 3. . Muscle. Laminae. . epithelialis. is lined with simple columnar epithelium. The surface epithelium consist of gastric pits which later on differentiates into gastric glands. The gastric pits are dipper in pyloric region than in cardiac and . Dr. R. K. Jaiswal. Asstt. Prof.-cum-Jr. Scientist. Dept. of Livestock Products Technology. Bihar Veterinary College. Bihar Animal Sciences University. Patna-800014 (Bihar). Glandular by-products. Animal glands .