tissue

• Epithelial Tissue - It covers body and organ surfaces, lines body cavities and lumina (the hollow portions of body organs or vessels) and forms various glands
• EXOCRINE GLANDS which are glands with ducts
• ENDOCRINE glands without ducts
• hemidesmosomes - that lie on the basal membrane, to help stick the cells to the underlying basal lamina
• Gap junctions - These are communicating junctions. (also known as nexus, septate junction)
• GLANDULAR EPITHELIA - glands consists of one or more cells that produce and secrete a specific product.
• Merocrine - glands are the most common and release their secretions by exocytosis
• Holocrine - glands release their secretions with the disintegration of the entire cell.
• Apocrine - glands release their secretions by detachment of an apical portion of the cytoplasm
• Mesenchyme - which develops into the various connective tissues of the body
• Mucoid connective tissue - which is a gelatinous substance found in the umbilical cord.
• Areolar - also known as loose connective tissue , which is highly cellular with a sparse, random arrangement of collagen fibers
• Adipose - fat cells
• white fat cells - are the most common type in adults
• brown fat cells - which are are smaller and present in large amounts in the new-born
• reticular - most prominent fibrous component, forms the supporting framework of the lymphoid organs
• Dense regular connective tissue - where collagen fibers oriented in the same direction
• Dense irregular connective tissue - collagen fibers woven in multiple directions.
• Elastic connective tissue - for flexibility and distensibility and located in the arteries , larynx, trachea and bronchi.
• Hyaline Cartilage - the most common form of cartilage. It is translucent, blueish-white, and shiny, usually only 2 – 4 mm thick
• Cartilage - a specialized connective tissue which is semi-rigid, but flexible avascular connective tissue found at various sites within the body.
• Elastic Cartilage - also called yellow cartilage, with a role to give shape and support.
• Fibrocartilage - a blend between hyaline cartilage and dense fibrous connective tissue which is white, densely arranged, opaque, tufted tissue with a mixture of both chondrocytes and fibroblasts.
• occluding junctions - (zonula occludens or tight junctions)
• adhering junctions - (zonula adherens)