Chikungunya and dengue fever are both mosquito-transmitted viral diseases that are endemic in Asia and Africa. Dengue may also occur in other parts of the world such as South America, Central America and the Caribbean. Both chikungunya and dengue should always be considered in case of fever in travelers returning from >> Read More ...
What is viral gastroenteritis? Viral gastroenteritis is an infection of stomach and intestinal lining caused by a virus leading to watery diarrhea and vomiting. It is commonly referred to as the stomach flu or gastric flu. Viral gastroenteritis is a very common and highly contagious infection which tends to cause small >> Read More ...
Changes in bowel habit is often associated with dietary factors or acute diseases. Less commonly, underlying chronic disease or the use of chronic medication can impact on the frequency of bowel movements with or without an associated change in the stool consistency and volume. Diarrhea is defined as the passage of more >> Read More ...
Growth hormone as the name suggests is responsible for the growth of all the tissues of the body. It is produced in the anterior lobe of the pituitary gland, a small pea-shaped gland at the base of the skull. The pituitary gland is commonly referred to as the master gland because it secretes various hormones that have a >> Read More ...
The cornea on the outer part of the eye and the lens within the eyeball are responsible for bending light (refraction) so that it focuses on the most sensitive part of the retina. The sharper the image cast on this area, the clearer of vision. The more common vision problems are associated with refractive errors – >> Read More ...
Bloating is common term used to describe the sensation of fullness in the abdomen may or may not correlate with any increase in abdominal size (diameter). It can also be used to describe abdominal distension (visible/measurable enlargement of the abdomen) without any sensation of fullness. Bloating is not an uncommon >> Read More ...
Stomach irritation is a common term used by many patients to report some discomfort or abnormality believed to be originating from the stomach. It is extremely subjective and variable in meaning because unlike other symptoms it does not denote the actual sensation or disturbance that one is experiencing. However, there are >> Read More ...
Normal Gastrointestinal Motility Food that is consumed undergoes both mechanical and chemical digestion in the alimentary tract. Nutrients are absorbed in the process and water and mucus are mixed with the ingested food at almost every part of the alimentary tract. Large amounts of water are then absorbed in the large >> Read More ...
The sense of vision is enabled by several components in the human eye and close to it – the visual apparatus of the eye, the nerves that carry signals to the brain and brain centers that decipher these impulses. Light has to enter the eye unobstructed, be refracted (bent) by the cornea and lens at the optimal angles >> Read More ...
Light entering the eye has to be refracted (bent) so that a sharp image can be focused on the retina of the eye. The retina is the photosensitive inner layer of the eye that converts the light into nerve impulses. Via the optic nerve, these impulses are relayed to the brain and is perceived as the sense of vision. The >> Read More ...
