Different types of epithelium tissues
By: Dr Pandula Siribaddana
Introduction: Epithelium tissues are the cell structures that line body cavities, blood vessels and other passages as well as the surfaces which are susceptible to friction. As such, these tissues are present in many parts of the body and will perform different functions according to...
By: Dr Pandula Siribaddana
Norepinephrine and epinephrine are also known as noradrenaline and adrenaline in other parts of the world. The terms refer to two vital hormones in the body which will facilitate the body reaction in certain situation. In most instances, the structure and function of these two...
Classification of human glands
By: Dr Pandula Siribaddana
In the human body system or in many animals for that matter, there are certain collection of cells which are named as ‘glands’ which will produce a secretary substance that will either be secreted directly to the blood or to a cavity within the...
By: Dr Pandula Siribaddana
Porphyrin is the precursor substance for heme which is one of the main ingredients of hemoglobin in red blood cells. The hemoglobin will facilitate the transportation of oxygen to the tissues and in its absence the body systems may collapse. In the case of porphyria...
By: Dr Pandula Siribaddana
The cardiac cycle is the term given to the processes that takes place during a single contraction and relaxation of the heart muscles. The term can also be explained based on the path taken by oxygen depleted blood to become oxygen saturated blood and thereafter...
Superficial vein routes of the lower limb
By: Dr Pandula Siribaddana
Veins are the blood vessels which carry oxygen depleted blood from the peripheries and end organs of the body. These blood vessels appear bluish due to the oxygen depleted nature of the blood and will consist of a thin wall than its arterial counterpart. The...
Anatomy of the human clavicle
By: Dr Pandula Siribaddana
In a portrait of a thin female, a horizontally lying bone can most often be visible which extends from the shoulder to the breast bone. The masses know it as the ‘collar bone’ and the medics refer to it as the ‘clavicle’. Structure:...
By: Terrence Aym
The phenomenon of xenoglossy (knowledge of a language one has never learned) is almost always associated with severe head injuries, recovery from comas or hypnotic "experiments."Two types of xenoglossy are recognized: recitative and responsive. Recitative is the most common and people exhibiting it will...
By: Phyllis Logie
The concept of examining the internal organs of the human body in 'real time' is not a new one, the idea has been circulating since 1806 when Philip Bozzini invented an instrument which he called a ‘Lichtleiter’ or ‘light conductor’. He used his...
HIV
By: Devon Mongeon - 572782
When speaking about HIV, or indeed any virus, it's first necessary to establish that virus cultures are not living organisms. They are simply protein-coated strands of genetic information with no characteristics of life whatsoever; merely infecting cells and replicating their genetic information through the cell...

 

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