Tissue engineering may best be described as the utilisation of a combination of cells, engineering materials, and suitable biochemical factors which have the ability to improve or replace biological functions of the cells. Tissue engineering covers a wide variety of applications, in practice the best represented use of tissue engineering is in the repair or replacement of structural tissues such as bone, cartilage and blood vessels. The aim of tissue engineering is to produce functional constructs
is the process of renewal or restoration of a body, bodily part, or biological system after injury or as a normal process. It is the process that makes genomes, cells, organisms flexible to natural changes that cause disturbance or damage. Every species is capable of regeneration, from bacteria to humans. Regeneration can be two types - it can either be complete where the new tissue is the same as the lost tissue, or incomplete where the necrotic tissue comes fibrosis. A number of organs have the intrinsic
involving the artificial addition, deletion or rearrangement of sequences of bases in DNA in order to alter the observable form and function of an organism (Hynes, 1989). Animal cell and tissue culture techniques are used concurrently with genetic engineering. Tissue culture is the general term for the culture of cells, tissues, or organ of animal on a suitable environment (Ryan, 2008). Involvement of both these techniques can be called as genetic engineering of mammalian cells. Modification of mammalian
What are stem cells? -The human body comprises over 200 different cell types that are organized into tissues and organs to provide all the functions required for viability and reproduction. -Stem cells have the potential to change into many different cell types through early life and growth. -They serve as a repair internal repair system in many tissues, dividing without limitation until they restore (replenish) other cells. -stem cells can produce all of the different cell types that make up our
1.What are stem cells? “Cartman: Doctor, can you tell me exactly how stem cells work? Doctor: Well you have trillions of cells in your body, heart cells, skin cells, brain cells and so on. But before a cell is designated as a toenail cell, or a pancreas cell, it's what we call a stem cell. Sort of like a blank cell, do you understand? Cartman: Not at all, but go on.” ("Kenny Dies." - Full Episode. N.p., n.d. Web. 04 Oct. Giving it a more scientific definition, according to "Stem Cell Basics."
Do mobile phones cause brain damage. If so what can be done to reduce the risk of brain damage? Hypothesis: If humans frequently use mobile phones close to their heads over a long period of time, then this could cause brain damage. This is because the radiation from the mobile phones causes the cells in blood vessels to shrink. This then allows potentially harmful substances in the blood to 'leak' or enter into the brain. Even more exposure to radiation from the phone could make the blood brain
Function and Classification of Bones Classification of Bones The 206 named bones of the human skeleton are divided into two groups: axial and appendicular. The axial skeleton forms the long axis of the body and includes the bones of the skull, vertebral column, and rib cage. Generally speaking these bones protect, support, or carry other body parts. The appendicular skeleton consists of the bones of the upper and lower limbs and the girdles (shoulder bones and hip bones) that attach the limbs to
The function of the skeletal system is to hold the body in an upright position, maintain its form, and provide movement. The muscular system provides the force and power needed to move the body. During an amputation, the surgeon must divide muscles in the remaining part of the limb, in order for a prosthetic limb to fit the residual limb comfortably. After an amputation
or low. This tells the other tissues on how to react and bring the level back to normal. The nervous system also manages homeostasis. There are many nerves all around our body and they are waiting to detect any change in our internal and external environment. When it does detect an abnormality, it sends chemical signals through a synapse to other nerve cells. They travel quickly to the brain, which acts as a command center, and then the brain will signal the other body systems to help offset the abnormality
which causes inflammation of various parts of the body, especially the skin, joints, blood and kidneys. The body's immune system normally makes proteins called antibodies to protect the body against viruses, bacteria and other foreign materials. These foreign materials are called ANTIGENS. In an autoimmune disorder such as Lupus, the immune system loses its ability to tell the difference between foreign substances (antigens) and its own cells and tissues. The immune system then makes Lupus Lupus Lupus