I watched a video about the biotechnology and bioengineering to help enhance and increase ones rate of living longer or surviving. The Video, called Can We Live Forever, started off with an introduction how the car from the Guinness Book of World Records has been able to sustain a very long lifetime. Irvin Gorman, the owner of the car, has had it for approximately four decades, and the car has been running for more than 2.7 million miles. Every living thing is suppose to eventually break down and die. This is very similar with cars, except Gorman was able to outlast this assumption. Whenever there is a problem with the car, Gorman’s “A” Team goes and fixes it. This is not any different from a living organism, because your body will replace cells constantly just like Gorman’s car’s parts have to be replaced and fixed. Now custom made personalized body parts have soon become a reality. This means that there will no longer be rejections nor waiting lists because of the new bioengineering they have created. For years, transplant surgeons have tried forming cells into organs, but the cells will just end up sitting in clumps. Now, thirty years ago, transplant surgeons discovered that to make an organ, the cells will need a framework to function correctly. They began to use bio rubber as a scaffold, or material, so that the living tissue can grow on. They grew an ear on a mouse so that the organ will already have the blood vessels along with the skin; so that when it is put on a human, there will be no rejection from the body. They did this by incubating and growing perfect cartilage that was already connected to the blood vessels, just like a human’s ear. They will be using these ears on war veterans. They have also been able to create a pair of lungs that function perfectly. If the scientists wish to build more complex organs, like a heart or liver, the scaffold builders need to overcome the problem of having a blood vessel per cell. Since the heart works all day, every day, then there will have to be more blood vessels which are very intricate and hard to make. The blood vessels are like braches from a tree. Except the challenge is for them to not build the big limbs, but instead the tiny twigs and branches that come off of it. Scientists have discovered though that once you wash the cells away, what are left are these proteins. These proteins are what form the framework of the intricate organs. By using a certain chemical, they were able to strip away the cells away, leaving just the proteins and framework of the organ. After injecting dye, they were able to see that the scaffold was undamaged, but yet they were still able to determine the blood vessels. This technique also works with many organs. After having the scaffold, they needed more than just putting cells on the framework of them. They learned that they also need to give them an electrical signal and a mechanical blood pressure along with oxygen. After eight days, they were successfully able to make an artificial lab heart. With this same method, they were able to make a working, living lung. After following a group of Japanese men since the 1960’s, they have discovered genetic reasons that have allowed these men to live longer. The foxo gene is the same superintendent that helps worms live longer and outlast the decay of life. This gene is…
Estimating the size of red and white blood cells
Blood is a liquid medium that is the main transporter of heat, nutrients, wastes, gases and other chemicals around the body. Blood is composed of three types of blood cells: red blood cells, white blood cells and platelets, which are all produced in the bone marrow. Erythrocytes (red blood cells) are the most abundant cells in blood. Their primary role is to transport oxygen around the body. Red blood cells contain only a nucleus when…
Blood Pressure |
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Scott Lewis |
Heart Rate and Blood Pressure are two of the key components of our Cardiovascular System. These two components allow our bodies to function in the most productive and efficient way possible.
Heart rate is determined by the number of heart beats per unit of time, typically expressed as beats per minute. This can vary as the body’s need for oxygen changes in a period of time. The heart…
cell disease; it’s a blood
disorder that affects hemoglobin, the protein found in the red blood cell that helps
carry oxygen throughout the body. Normally, red blood cells are round and flexible so they can
travel freely through the narrow blood vessels. In sickle cell anemia the red blood cells are
crescent shaped, stiff, and sticky they tend to block the flow in the blood vessels.
Sickle cell anemia is a type of anemia. Anemia is a condition in
which your blood has a lower than normal…
together, they form continuous sheets that contain no blood vessels.
Protects from injury, contains receptors which respond to stimuli, and filters and secretes materials and secretes serous fluids.
Connective: Most abundant and widely distributed tissue. Connects, binds, and supports structures, protects and cushions organs and tissues, insulates fat, and transports substances such as blood.
Muscle: Associated with the bones of the skeleton, the heart and in the walls of the hollow organs of the body…
are knee, hip and shoulder joints
- pacemakers. These are used to correct arrhythmias, that is, when the heart beats too fast, too slowly or irregularly. A pacemaker is a battery-operated device designed to stimulate contraction of the heart at a certain rate.
- artificial valves. These valves can be used to replace damaged valves in the body that are no longer functioning to keep blood flowing in one direction only.
- crowns, dentures. A crown is a tooth cap that is placed over an artificial…
Anatomy – blood, blood vessels arteries veins and capillaries and heart
Physiology – the function of the cardiovascular system is
Transportation – substances that are transported include respiratory gasses, nutrients from the digestive tract antibodies, waste materials and hormones from the endocrine glands as well as transportation of heat from active muscles to the skin, where the heat can be dissipated
Protection – the body…
we call that secretion.
* An exocrine gland secretes something into a duct, carries the substance to a particular part of the body e.g. salivary grand and pancreas.
* An endocrine gland is an organ that secretes hormones directly into the blood e.g. pancreas. They have no ducts e.g. pancreas secretes insulin and glucagon.
* A duct is a tube leading from one part of the body to another.
* Mammalian hormones are relatively small molecules
* There are two main…
to ensure that organ tissues receive enough oxygen. The aim of this report is to discuss the structure of the various parts to explain how they carry out their function.
The main role of the respiratory system is to provide gas exchange between blood and environment. Organs absorb from the atmosphere into the body and carbon dioxide removed from the body. The two important structures in the respiratory system are the larynx and lungs. The larynx is the structure between the throat and trachea.…