The differences between male and female brains
By: G E Barr
The Brain: Gender Identified There is within the brain of both males and females, the Cingulate Gyrus, and it is located above the Corpus Callosum, which is the "bridge" between the right and left hemispheres of the brain. The Cingulate Gyrus is gender explicit in...
Gene expression explained
By: Michelle Mak
Gene expression is the process of protein formation. Proteins are the molecules that are responsible for enabling us to live. They carry out majority of the processes that are important for life, as they include enzymes, transcription factors and the various cell machinery. Indeed...
Liver disease: Overview of a liver biopsy
By: Dr Pandula Siribaddana
Liver biopsy is the obtaining of a tissue sample through an invasive method that is performed using a biopsy needle. The procedure will be a definitive guide on the tissue state of the liver and would be performed only in certain instances as it involves...
Overview of the blood supply to the liver
By: Dr Pandula Siribaddana
Liver is a complex organ in which many vital functions takes place. Thus, being a vital organ, the liver can boast a rich blood supply which is unique to other organs in the body. The arrangement of the feeding vessels, draining vessels as well as...
The human gastrointestinal system
By: Tarek Musslimani
The gastrointestinal system or the digestive system as it is sometimes referred to consists of the mouth, the esophagus, the stomach and the small and large intestine. The food is digested partially in the mouth by chewing and by the action of the enzyme amylase...
Liver disease: Structural changes in the liver
By: Dr Pandula Siribaddana
Liver is a delicately structured organ which will perform several vital tasks in order to keep the person healthy. Among its tasks, metabolism of harmful elements, detoxification, storage of excess nutrients, producing protein elements to perform certain functions, conversion of nutrient elements in to active...
How surgeries are performed by Da Vinci Robotic surgical systems
By: Bill Fitzgerald
Until recently if you were diagnosed with a condition requiring surgery you could expect a large incision and a large scar as well. Relatively mew technology has begun to allow surgeons to conduct major procedures while only cutting three or four small incisions. A...
Structure and function of the skin
By: Tarek Musslimani
The skin is the covering layer of the body. It has a protection function as is seen from the type of epithelium that its epidermis layer has. It has a stratified sqaumous keratinized epithelium, which is composed of several layers of cells. The skin of...
The differences between RNA and DNA
By: Alicia M Prater PhD
RNA and DNA are two types of nucleic acids. The differences between these two molecules involve their chemical composition and, sometimes, their structure. RNA stands for ribonucleic acid, and DNA stands for deoxyribonucleic acid. As the names imply, one difference between these two molecules is...
Explanation of the mechanism of breathing
By: Alicia M Prater PhD
Breathing is a necessary mechanism in the human body. A breath occurs in two parts, inhalation (or inspiration) and exhalation (or expiration). The breathing cycle is controlled by the nervous system, particularly the respiratory center of the brain, and respiratory muscles. Inhalation requires contraction of...

 

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