Essay about Jab 4 Histology

B. What can the shape of the cells in a particular type of tissue tell about the function of that tissue?

fibrous capsule and a cushion of fat. . The have an outer portion, called the

Every disc has a tire-like outer band (annulus fibrosus) that encases a gel-like substance (nucleus pulposus).

The annulus is composed of concentric rings of collagen fibers that is called lamellae and arranged in a highly ordered pattern. The lamellae are made up of 15 to 25 layers that are present in the annulus and surround the central nucleus pulposus. The annulus is made up of strong fibrocartilage, which is made of collagen type I and II. The collagen fibers in each lamellae are arranged alternately and intersect with each other (right/left hand alignment). The lamellae are thicker in the lateral and anterior portions of the disc and thin posteriorly. Annulus fibrosus lamellae are made of long collagen fibers that are laying parallel to made fibrous multi-layer composites with differently oriented orthotropic layers. The outermost layer is composed

In this correlation I will thoroughly analyze the distinctive sort of tissues, as far as their capacity and structure and their area inside the body. Tissues are gathering of cell comparable in structure and capacity so they have the same kind of shape and they have comparable capacity and this is the place the distinctions and closeness originates from.

superbly demonstrates virtually all anatomic structures in the The tracheal wall is well superbly demonstrates virtually all anatomic structures in the defined internally by air in the tracheal

required for the body to make collagen which is an important component of connective tissue. "

Theyre also positioned close together in random patterns, simple squamous epithelium is found on the walls of the lung aveoli and the blood capileries.

Evaluate the types of epithelial and connective tissues found in the epidermis and dermis of the skin in terms of anatomy and functions.

Epithelial tissue is packed close together with little or no interstitial fluid or other matrix between them to form a continuous sheet that lines the body. Epithelial tissue gets its oxygen and nutrients from nearby blood vessels in the connective tissue. Connective tissue is the most widely distributed tissue in the body. Connective tissue

It is highly important to maintain the original tissue architecture as much as possible during the course of diagnostic procedures. Fixation prevents cellular degradation from lack of blood supply or bacterial putrefaction and preserves soluble proteins by forming cross-linking, thereby protecting them through tissue processing stages (Drury and Wallington, 1980, Eltoum et al., 2001). When fixed specimens are received by the laboratory, creating unique identifying number while cross-checking with the patient profile is essential to prevent misdiagnosis. Standard histopathology procedures include grossing or cutting up, tissue processing, embedding, sectioning, mounting to slides, analysing via microscopes and reporting the diagnosis. Specimens are put into appropriately labelled cassettes and if needed, dissection to thin and uniform slices should be done. Then, the specimen cassettes go through a scheduled tissue processing system, consisting of reagents such as alcohol, xylene or histoclear and paraffin wax. The processed specimens are then moved to embedding station where they are embedded in paraffin using suitable moulds, placed in a correct orientation. Microtomy is crucial to cut

The main structural components of the cartilage in your body are substances known as glucosaminoglycans, and they are responsible for connective tissues such as tendons, ligaments, veins and arteries, heart valves, skin and

Before we begin the tour, I would like to give some background information about tissue. There are four basic categories of tissues: epithelial, connective, nervous, and muscle. Epithelial tissue is found in the skin, bladder and the lining of some organs. The epithelial tissue is also responsible for sweat glands, or exocrine glands. Connective tissue binds sores together and insulates. Nervous tissue makes up the nervous system, or the brain and spinal cord. It helps the body to communicate with other systems. For example, if one part of the body was hurt, the nervous tissue would bring that information to the brain. Muscle tissue is found in the muscles and used for contraction. Now that you know about the four basic types of tissues, we can

4Epithelium tissue can comprise of diverse varieties of tissues. The varieties are cuboidal, squamous and columnar. Squamous epithelium tissue which are pictures 1 and 3, that are available in the alveoli and the throat's layering so as to cover, they are flat and are shaped of cells which. Essentially the columnar epithelium tissue which is picture 2 is likewise comprised of layer but the layers are segment shaped and are available in the pharynx's covering, anus, uterus and

Overall, articular cartilage is a very dense structure, lacking blood vessels and nerves that are found in other tissues77. Chondrocytes are the cell types embedded within cartilage, and produce the structural proteins that form the ECM. The major components of the ECM are water, type II collagens, proteoglycans, aggrecan, and noncollagenous proteins such as fibronectins115,22. The resulting osmotic pressure created within the wet and dry components of the ECM work in harmony to support the mechanical forces applied to cartilage77. The water is retained in the ECM by aggrecan, the primary structural proteoglycan which is based on a long hyaluronic acid backbone with highly charged glycosaminoglycan (GAG) side chains, such as chondroitin sulfate (CS) and keratin sulfate (KS)26. Altogether, these components are what create the depth dependent layers of cartilage: the superficial zone, the middle zone, the deep zone, and the calcified zone (Figure