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    Advancements in Tissue Engineering

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    Advancements in tissue engineering have introduced a number of promising methods to repair large bone defects. Technology used, to date, in such efforts have involved autografts and allografts. These methods have severe limitations and associated risks and have, thus, fueled research efforts to find more efficient methods of healing. Tissue engineering uses methodology from materials engineering and life sciences to design replacement devices with similar morphology and function for injured tissues leading

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    Investigation of Tissues

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    Investigation of Tissues Tissues are defined as a group of associated, similarly structured cells that with their ground substance act together in the performance of a specialised function for the survival of the multicellular organism. The tissues are classified into four main groups which are epithelial, connective, muscle and nervous. (http://encarta.msn.com/encyclopedia accessed 08 October 2004) Epithelial Tissues Epithelial tissues form the covering of all body surfaces with

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    Tissue Engineering

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    Tissue Engineering Tissue engineering, labeled by Time.com as the number one hottest job for the 21st century, holds great potential for medicine and the treatment of chronic diseases and disorders. With tissue engineering, familiar problems like the rejection of foreign tissue by the body, the severe shortage of organ donors, and the inefficiency of artificial devices may be solved. However, this cutting edge biotechnology has already spurred intense controversy over the ethics and morality

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    Investigating Osmosis in Potatoe Tissue To find out how the concentration of sucrose solution affects the rate of osmosis in a potato and what happens to the length and mass of the potato. What is osmosis? Osmosis is the movement of the water molecules across a partially permeable from a region of high water concentration to a region of low water concentration. Osmosis is a special case of diffusion The biochemical process in living cells always takes place in a solution. A solution

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    Tissue types

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    Biology Assignment 1. Tissue types and their properties! Body tissues! The four core types of tissues in the body are; epithelial, connective, muscle and nervous. Each is designed for specific functions. Epithelial Tissues! Epithelial tissues are spread out all over the body. They cover all surfaces and also line body cavities and hollow organs. These tissues are also the major tissue in glands. Epithelial tissues have many functions including secretion, protection, excretion, diffusion, absorption

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    Osmosis into Potato Tissue Aim: To investigate how varying the sucrose concentration around piece of potato tissue affects the diffusion of water (osmosis) into or out of the cell. Introduction: Definition of Osmosis: This is the diffusion of water molecules from an area of high water concentration (dilute solution) to an area of low water concentration (concentrated solution) through a permeable membrane. The rate, again, depends on the surface area, the concentration gradient

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    One of the most versatile and dynamic substances used by researchers and doctors is also the most ubiquitous: human tissue. Donated tissue samples are used many different ways, from basic study to advanced testing. Scientists can better understand the disease process by observing it at a cellular level. Drugs can also be tested and refined on tissue samples. Some of the more important areas of study include cancer, diabetes, liver disease, stroke and Alzheimer's disease. It is also used to

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    Tissue in the Human Body

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    Connective Tissue Connective tissues are found all over our bodies. Generally, they are located in blood, fat, and between muscles and bones. The matrix is the substance that surrounds the cell. Matrices can be fluid or solid, depending on where they are found. They also are found to have varying degrees of vascularity. For example, a bone would be very vascular while cartilage is avascular. Two good property the cells of connective tissue have is that they can divide and repair themselves

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    Tissue Engineering

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    Tissue engineering is a field which involves biology, medicine, and engineering. It aims at restoring, maintaining and enhancing tissue and organ function by implanting natural, synthetic or semi-synthetic tissue and bioartificial organs that are fully functional from the beginning, or that grow into the required functionality (Nature Publishing Group., 2014). It is emerging as a potential alternative or complimentary solution for organ failure. Basic Tissue Engineering Principles (Castells-Sala

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    Damaged tissue (inflammation) Inflammation is the body’s response to injury. Inflammation is a protective attempt by the body to attempt to remove harm and to initiate the healing process. Inflammation occurs with a few minutes of the incident up to a few hours after depending on the severity of the injury. There are 5 key characteristics of inflammation these are: • Pain • Redness • Swelling • Heat • Immobility (loss of use) Injury causes Tissue damage.

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    Synthetic Polymers Synthetic polymers are appealing for tissue engineering because their chemistry and properties are controllable and reproducible. For example, synthetic polymers can be reproducibly produced with specific molecular weights, block structures, degradable linkages, mechanical strength, gelation kinetics and cross-linking modes. These properties in turn, determine gel formation dynamics, cross-linking density, and material mechanical and degradation properties (Jeanie and David, 2003;

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    Bone and soft-tissue sarcomas can develop from many different tissues such as the bone or muscle. Sarcomas can occur anywhere in the body and are not common. Sarcomas may be found in the trunk, internal organs, head and neck area, and the back area of the abdominal cavity. There are approximately 50 different types of soft tissue sarcomas that can occur in the body. Symptoms of bone and soft-tissue sarcomas are lumps, pain in stomach or digestive tract, swelling in the area of pain, weight loss and

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    Parkinson's Disease and Tissue Transplants

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    For nearly 100 years neural tissue has been transplanted in animals. Transplantation of neural tissue into humans, however, began only a few years ago (1). It has been found in animals, that fetal brain grafts in damaged adult host brains reduce some of the functional deficits caused by brain lesions. Even though some neurons from the transplanted tissue survive and develop reciprocal connections with host brain tissue, this is not enough to completely replace damaged fibers and support behavioral

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    • Tissues and Systems 1. Compare and contrast the 4 principal tissue types? The four basic tissue types in the human body are: Epithelium, Connective, Muscle, and Nervous. Epithelium is a single or multiple layers of flattened, cube-shaped or columnar cells which is a protective linings which covers interior or external surfaces of our organs while protecting, secretion, and absorption. Connective server to connect and support tissues that bind and hold structures together by adhesion, while supporting

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    Investigating Osmosis in Potato Tissue Aim To estimate the concentration of sucrose in potato tissue. Hypothesis ========== I believe that the potato tissue that has been in the hypotonic (0.1M sucrose) solution will be more turgid than before, while the tissue in the isotonic (0.3M sucrose) will be similar to its previous state. The tissue that has been in the hypertonic (0.5M sucrose) should be far more placid than it was before. This is because of osmosis - water diffusing

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    same functions in human body. Tissues outcomes in the formation of organs made primarily of tissues. (Cinnamon L. , 2) The epithelial tissue’s function is to secret substance, prevent, cover and line ultimately all of the body’s cavities and surface. (Cinnamon L. , 71, 72) Connective tissue is known to bind, support, and separate other organs and tissues. There are five kinds of connective tissue which are cartilage, bone, blood and loose and dense connective tissue. These kinds are in charge of

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    Investigating the Factors that Affect Osmosis in Living Tissue Aim: To investigate the factors that effect osmosis in living tissue. Planning: Introduction Essentially, osmosis is the diffusion of water across a selectively permeably membrane. Osmosis is one of the ways by which substances enter and exit cells. Other ways include diffusion, the Donnan effect[1], solvent drag, filtration, endocytosis, exocytosis and active transport. All of these methods are necessary to provide

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    Investigating Osmosis in Potato Tissue Aim-We are going to investigate how 'osmosis' is effected by higher and lower concentrations of water using potato cylinders as selectively permeable membranes. A selectively permeable membrane is something only water molecules can pass through. We will cut eighteen potato cylinders to the same width and length using a scalpel and a corer on a white tile. We shall use the same potato for each cylinder. The cylinders should then be around the same

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    Investigation of Osmosis in Plant Tissue Aim To investigate factors which affect the rate of osmosis. The main factors which affect osmosis are: Pressure Temperature Surface area Solute Concentration Plant Tissue We will be investigating solute concentration as this is the easiest factor to measure and will give us the most accurate results. We will mainly investigate the different rate of osmosis when potato cells are placed in solution with different solute concentrations

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    Essay On Adipose Tissue

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    activated Adipose Structure and Function There are two categories of human adipose tissue, subcutaneous adipose tissue (SCAT) and visceral adipose tissue (VAT). Adipose tissue can be further classified as white adipose tissue (WAT) and brown adipose tissue (BAT). Adipose is composed of adipocytes, pre-adipocytes, fibroblasts, and immune cells. A vascular network runs through adipose while nerves innervate the tissue as well. Adipocytes found in WAT contain a single large lipid droplet which is considered

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