JarynaLimbauan IV-A BSBT Euriz Ramos Strategy: Lecture I. Objectives At the end of the lesson‚ the students are expected to: 1. Identify the structure and components of gastrointestinal tract; 2. Initiate consciousness in maintaining a healthy gastrointestinal tract; 3. Observe slides of rugae and villi layers. II. Subject Matter Topic: Gastrointestinal Tissues III. Materials A. PowerPoint presentation 1. Parts and Function of Gastrointestinal Tissues
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level of the pelvic diaphragm. It lies in the anal triangle of perineum in between the right and left ischioanal fossa. The anal canal is divided into three parts. The zona columnaris is the upper half of the canal and is lined by simple columnar epithelium. The lower half of the anal canal‚ below the pectinate line‚ is divided into two zones separated by Hilton ’s white line. The two parts are the zona hemorrhagica and zona cutanea‚ lined by stratified squamous non-keratinized and stratified squamous
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Digestive system 6.1.1 explain why digestion of large food molecules is essential * Large food molecules are polymers‚ broken down into monomers in order to be absorbed into the blood * Humans eat substances by other organsims‚ many which are not suitable for human tissues therefore they must be broken down and reassembled in a form that is suitable * Many molecules in foods are too large to be absorbed by the villi in the small intestine‚ the large molecules have to be broken down
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structure in the urinary system is the ureters. The ureters are a yellow color found connected to the kidneys and the urinary bladder. The ureters have three layers. The first layer from inside out is the mucosa layer‚ which is composed of transitional epithelium. The second layer is the muscularis layer‚ which is composed of smooth muscle. The third and final layer in the ureters is the adventitia layer‚ which is composed of outer fibrous connective tissue. The next structure in the urinary system is the
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Illness : Violent coughing can damage the nerves in the olfactory glands‚ a viral infection or respiratory virus may damage the olfactory nerve. When a viral infection like the "flu" involves the cells of the olfactory epithelium‚ the viral particles destroy the normal functioning of the nasal olfactory cells. Also‚ allergy or infection in the nasal cavity. Anosmia can occur transiently in many nasal disorders‚ including sinusitis and nasal blockage from any cause. Born
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Olfactory epithelium Thin sheet of cells which contain neural receptors for olfaction Contains olfactory receptor cells and glia-type support cells that produce mucus Also contains basal cells which give rise to new receptors when needed Olfactory receptor cells Regularly die and replaced in a cycle approximately four to six weeks. Are bipolar: 1. Branch 1 – reaches out to the surface of the epithelium. Cilia extend from the end of this branch into the mucus that covers the epithelium. Molecules
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Although Odontogenisis is a continuous process it is divided into various stages. These stages are Bud stage‚ Cap stage and Bell stage which is followed by root formation and eruption. The basal layer of the ectoderm which is derived from the oral epithelium at the stomadeum undergoes proliferation both on the maxillary and mandibular arches. This however forms a horse shoe like shape of ectodermal tissue‚ which is the dental lamina; the ectomesenchyme which is derived from the neural crest cells surrounds
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Jejunum villi does not contain specialized glands‚ instead contain intestinal crypts between the villi. The villi of the ileum are longer and leaf like compared to the duodenum and the jejunum. The ileum contains lymphatic nodes. In general the epithelium of the small intestine are all specialized with goblet cells‚ paneth cells‚ and entroendocrine cell. 2. What type of epithelial tissue do you expect to see in the sections from the large intestines? The epithelial tissue of the small intestine
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P2‚ Richard Greensmith‚ and Health & Social Care & Health Sciences. P2 Outline the structure of the main tissue of two body organs. Stomach The stomach has three layers of non-striated muscle in its wall and an inner lining of columnar epithelium with goblet cells. The tissue connecting the lining with the muscular coat is areolar tissue. Non striated muscle is a type of muscle tissue‚ which is also called involuntary‚ smooth or plain muscle. It still contains the protein filaments; they
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Disturbances of Growth Congenital Anomalies Agnesia: complete absence of an organ. Aplasia: complete failure of development of an organ. It is represented by fibrous tissue. Hypoplasia: Failure of an organ to reach the full adult size. Atrophy Definition: decrease in size and weight of organ or tissue due to decrease in size and / or number of its cells. Atrophic cells are usually replaced by firbous tissue‚ less commonly by fatty tissue. Types of atrophy: Physiologic Atrophy: **Atrophy
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