The five senses of human beings
By: Jenn Reed
Traditionally, there are five senses; sight, smell, taste, touch and hearing. Each of the five senses consists of organs with specialized cells that have receptors for specific stimuli. These cells contain links to the nervous system and to the brain. These senses are essential for...
By: Dr Pandula Siribaddana
An endograft is a stent, consisting of a wall made of wire mesh and a wraparound fabric material, which is designed to withstand the chemical and physiological insults encountered in human circulation. Thus, it is made for the specific purpose of being placed inside a...
By: Suzanne Rose
Herpes is a common condition that causes painful and uncomfortable sores on the body. Although many people associate herpes with the genital area, sores can occur on the mouth and in many other places all over the body. According to Dr. Sanjay Gupta of CNN...
Function of heart ventricles
By: Lakeccrunner
The heart is the muscle that controls the flow of blood to all other regions of the body and is one of the most vital components of the human body. Anatomically, the heart consists of four chambers, the upper right and left atria and the...
By: Suzanne Rose
Most people have a strong opinion on stem cell research. For years, people have debated over the intricacies of this groundbreaking research. What exactly is it that makes stem cell research so controversial? There are a number of factors that come into play. Destruction of...
By: Alanna Rose
Stem cells are a very unique type of cell found in the body. According to the National Institutes of Health, stem cells are different from other cells in the following two distinct ways. These cells are unspecialized cells that can regenerate though cell division even...
By: Jennifer R. Povey
There are essentially two forms of congenital chimerism. The most common is haematopoetic or 'blood' chimerism. This occurs in non-identical twins and is particularly common in cattle. Due to the closeness of the two fetuses as they develop in the womb, an exchange of blood...
By: Jennifer R. Povey
Chimerism occurs when an organism has at least two different sets of DNA. There are a variety of forms, some of them very common. For example, microchimerism, where a few cells of a different organism are found within the individual's body is common for brief...
Examples of chimerism in nature
By: Brenda Nelson
Have you heard of an animal known as a geep? This animal did not occur naturally, and the correct name for it is a goat-sheep chimera. This is an animal that is part goat and part sheep, but not a hybrid. Literally different parts of...
What is an electrocardiogram (ECG)?
By: Quinn Decent
The heart rate is the number of beats per minute. On average, an adult human’s heart beats around 70-75 beats per minute. A precise way of measuring the heart rate is the electrocardiograph (EKG). EKG's can diagnose the condition of the heart by reading...

 

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