In order to allow the diffusion of islet beta cells encapsulated within the medical scaffold into the pancreas to provide a functional pancreas, which material would be ideal for that out of collagen, fibrin, and silk?
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In order to allow the diffusion of islet beta cells encapsulated within the medical scaffold into the pancreas to provide a functional pancreas, which material would be ideal for that out of collagen, fibrin, and silk?
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- A 45-year-old man without a history of bleeding or excessive bruising dies suddenly due to rupture of an aortic dissection. Genetic analysis at autopsy shows a defect in the gene for fibrillin. Which of the following events most likely occurs with defective fibrillin? (A) Elastic fibers in the extracellular matrix are not correctly formed (B) Hyaluronic acid in proteoglycans is not sulfated on the proper hydroxyl residues (C) Intermediate filaments are not assembled in endothelial cells (D) Shorter side chains of chondroitin sulfate are present on the proteoglycans (E) Tubulin is not polymerized correctly due to the lack of GTP in endothelial cellsOne way to characterise biological tissue is to send a small electrical current through the tissue and measure the opposition to flow of that current through the tissue. In humans, the resistivity of fat is considerably greater than for muscle, which in turn is considerably greater than for blood and other body fluids. This can be used to analyse body composition, in particular, to estimate body fat percentage. (a) Using a simple model of fat versus non-fat tissue, draw a circuit diagram to represent the possible flows of current through the tissue. (b) Why would the analysis of body composition need to take into account the height and weight of the person? (c) How could the level of hydration or electrolyte abnormalities in the person affect the results of the analysis? DII Prt Scn a Home 9 F4 ES F6 F7 2$ & 4 6 7 8. 9The trans epithelial electrical resistance (TEER) is a characteristic property of an epithelium. Which of the following statements best describes the TEER? a.) A high trans epithelial electrical resistance (TEER) is an indicator of a leaky epithelium in which paracellular diffusion of solute is likely to be high b.) A high trans epithelial electrical resistance (TEER) is an indicator of a tight attachment between the epithelium and the basement membrane in which diffusion of solute across the basolateral surface is likely to be low c.) A high trans epithelial electrical resistance (TEER) is an indicator of a tight epithelium in which paracellular diffusion of solute is likely to be low
- Which of the following are responsible for establishing the resting memebrane potential? a) the sodium/ potassium pump b) the high permeability of the membrane to potassium c) all of these d) negatively charged proteins inside the cellThe primary components of the extracellular fluid are, : (a) lymph and cerebrospinal fluid. (b) blood plasma and serous fluids. (c) interstitial fluid and plasma. (d) a, b, and c are correct.Define amacrine cell
- in regards to pancreatic cancer, what mechanisms fail at the cellular level that disrupts homeostasis?RETICULAR CONNECTIVE TISSUE Describe this tissue. A. ["contains collagen fibers arranged "regularly" in bundles", B."fine interlacing network of reticular fibers and reticular cells", C."fine interlacing network of elastic fibers and chondrocytes"] What is the location where this tissue can be found? A. ["stroma of liver, spleen, lymph nodes; red bone marrow; reticular lamina of basement membrane; around blood vessels and muscles", B."forms tendons, most ligaments, aponeuroses", C."fasciae, reticular region of the dermis, pericardium, periosteum, perichondrium, joint capsules, membrane capsules around organs, heart valves"] What is the function of this tissue type? A. ["strength, elasticity, support", B."tensile strength", C."forms stroma of organs; binds smooth muscle tissue; filters and removes work out blood cells in spleen and microbes in lymph nodes"] ADIPOSE CONNECTIVE TISSUE What is the main cell type in this tissue?…a) Give the importance of the hexose monophosphate shunt. b) Give the importance of its products? c) In which type of tissue and which part of the cell does it commonly occur?
- you are a student EN completing your final placement in an acute care facility. One of the patients in your workload is 62-year old Mel Ferrer. Mel was diagnosed with Type 1 diabetes when he was 7-years old. He has been hospitalised because he is finding it difficult to control his glucose levels after a recent illness. Mel is also complaining that his eyesight is deteriorating. The doctors suspect that this is retinopathy.(a) Explain to Mel, what is retinopathy? (b) Describe the appropriate eye care for a person with diabetes and identify one(1) specialist service that Mel could be referred to.For a TPU medical scaffold surgically implant around the pancreas, explain the effect of internal body temperature and cellular reactions on the scaffold causing degradation.Cotransport systems of the internal epithelial cells include the _____ in the intestine facing membrane, the energy requiring _____ facing the blood, and the ________ allowing facilitated diffusuon of glucose out of the cell.