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Neoplasia
...  obstruction a dramatically decreased appetite (this is said to contribute to the weight loss) abdominal pains and constant headaches Carcinoma Pertains to a neoplasm that originates within the epithelial tissues. As a result, there will be a presence of open sores or wounds of unexplainable origin which also heal at a very slow pace. These sores bleed or ooze both constantly and  ...

Glandular Structure
...  structure is a type of tissue that performs a specific function, usually by secreting substances. epithelial tissues make up the lining of the glands. With their different secretions, they can control the different processes that occur in the body, especially those that are of endocrine in origin or excrete unwanted waste products. Exocrine The widely-distributed glandular structure  ...

Alveoli
...  alveolus increases to accommodate the air inside. Histology Under the microscope, the alveoli look like hollow spaces. The empty spaces are the area of gas exchange. The lining is a simple squamous epithelial tissue to allow the diffusion of gas to occur. It contains collagen and elastic fibers to accommodate the constant stretching of the organ. Because of the large amount of capillaries,  ...

Gall Bladder
...  it pours its secretion in the duodenum of the small intestine through the common bile duct. Histology If you examine a portion of the gall bladder, you will see structures clearly. Simple columnar epithelial tissue lines the surface of the organ. The walls are about two cm thick with three visible coats, an internal mucous and muscular coat, the middle connective tissue layer, and the  ...


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