Posted by admin
on August 19, 2014
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The human body is comprised of four different types of tissues that are necessary for our very survival. These are epithelial, connective, nervous and muscle tissues. Let us examine the dedicated roles that each one plays within our bodies.
From a broad sense, epithelial tissue can be seen as a “lining” which protects various surfaces of the body. This type is found as the outermost layer of the skin while it is also present on the organs and inside of the small and large intestines.
As the name suggests, connective tissue is responsible for providing the body with support and structure. There are two subcategories of this tissue. Loose connective tissue plays a role in structures such as the skin, lymph nodes, bone marrow and muscles. As these materials are considered less rigid, the term “loose” is used.
On the contrary, fibrous connective tissue is much stronger and is used in areas such as the joints between bones. Examples of this type include cartilage, ligaments and tendons. The bones themselves can even be called a type of connective tissue.
Nervous tissue will allow different parts of the body to communicate with one another through the use of electrical impulses. Of course, the two most common examples of nervous tissue are the brain and the spinal cord. Thus, nervous tissue can be thought of as a “transit” system which enables the body to react to its interior and exterior environment. This tissue contains specialised cells that are known as neurons. These will initiate impulses to other cells and in turn, to the brain itself.
The most important feature of muscular tissue is that it has the ability to contract. Obviously, such actions are useful for lifting objects, mobility, breathing and protecting the internal organs. As muscular tissue is present throughout the body, there are a few different types. Cardiac muscle is only found within the heart while skeletal muscle is responsible for all physical movements. A final variant is known as smooth muscle (this lines the walls of organs and blood vessels).
These four categories of human tissue play critical roles in the human body. Extensive damage to any type can cause serious injury and in some cases, even death.
Posted by admin
on August 13, 2014
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As medical technology continues to advance, there are numerous treatment options that are both novel and extremely effective. For example, it has just been announced that an experimental vaccine against the Ebola virus has likely saved the lives of the doctors that were infected during the treatment of patients. Of course, this is but one example of the progress that has been made. What other advancements have occurred?
Thanks to a revolution in the understanding of the human body, companies such as Biolamina are now able to manufacture stems cells to treat a variety of diseases. As these cells can be cultured artificially and they are not likely to become rejected by the host, this method represents an unprecedented breakthrough in the treatment of numerous ailments.
Nanotechnology represents the use of molecular “machines” to treat an illness. One of the primary benefits is that such an option is much more effective at targeting the discrete cells of a disease (as opposed to a whole-body approach such as in chemotherapy). Also, such procedures are not considered to be nearly as invasive. Thus, the patient can expect a faster recovery and the treatment of the disease is much more effective. Of course, this field is still in its infancy and the majority of these options are not yet available to the general public.
As our knowledge of pharmacology increases, the number of traditional treatment options has grown. This is due in no small part to years of longitudinal research combined with cutting-edge technologies within the medical field. Perhaps the greatest benefit here is that as opposed to experimental treatments, these methods are generally available the the public.
Each year, hundreds of new medicines are released into the open market. This has helped to save countless lives and it is thought that many deadly diseases may be eradicated over time with such advancements.
Posted by admin
on August 08, 2014
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Ebola may be making headlines right now as one of the most virulent disease in the world with up to a 90 per cent death rate, but what are the world’s deadliest modern diseases? We’ve done the research, so let’s take a look:
These diseases basically involve the passing of watery or loose stools, something you’d normally experience for a couple of days, tops. However, chronic diarrhea occurs when the condition persists for a minimum of four weeks and prove life threatening for some. These conditions claim a staggering 2.46 million lives per year, usually children who live in developing countries where viruses and dirty water can cause chronic diarrhea.
Chronic Obstructive Pulmonary Disease
Also known as COPD, chronic obstructive pulmonary disease targets your lungs and can make it very difficult for you to breathe. The disease can come in the form of chronic bronchitis, or emphysema which destroys your lungs over time.
Lower Respiratory Infections
This could either be bronchitis or pneumonia; neither are pretty, and between the two, claim around 3.46 million lives each year. Fortunately, there are now vaccines to prevent the two main causes, influenza and pneumococcal disease.
Commonly referred to as a stroke, this disease occurs when there is an interruption to the brain’s blood flow. A hemorrhagic stroke is when the blood vessel bursts open, while an ischemic stroke is caused by a blockage. Both prevent the brain from receiving oxygen, which can lead to permanent damage. 6.5 million people a year die as a result of strokes.
Ischemic Heart Disease
Finally, the biggest killer on our list. Ischemic heart disease is caused by blocked arteries, preventing the heart from receiving enough blood and oxygen to function. 7.25 million people die as a result of ischemic heart disease each year.