Anatomy of the urinary bladder (Vesica urinaria)
The urinary bladder is a sack-like dilatation of the urinary passages which serves as a collecting reservoir, the size and shape of which is dependent upon the degree of distention. Three chief portions may be recognized in it: the middle and larger portion of the bladder is the body; the upper portion, which is distinctly pointed, especially in the newborn, is the vertex; and the lowermost portion, directed toward the perineum, is called the fundus.
- Details
- Hits: 8826
Mesothelioma Cancer
Mesothelioma
is a type of cancer involving mesothelial tissues of body organs
usually lungs or abdominal. It is often caused by exposure to asbestos.
However, there are 30-50% of patients without any history of asbestos
exposure.
People
who have received asbestos exposure of as little as one or two months
to very low doses are at risk of mesothelioma cancer. Even people who
wash clothes of asbestos exposed people are at risk. A person exposed
to asbestos could develop mesothelioma after 50 years of exposure.
People
in the occupations such as construction jobs in shipyards, insulators,
boilermakers, etc. are at the risk of contracting asbestos disease.
- Details
- Hits: 4257
Urinary organs
The urine is secreted by the kidney, whence it passes successively through the renal pelvis, ureter, bladder, and urethra into the outer world.
- Details
- Hits: 4704
Emerging viruses
The emergence of new viruses is related to the viral evolution, the ecological change of niche, the modification of the environment, the bioterrorism…
- Details
- Hits: 2481
Skeleton of the forearm
Formed of two bones, the radius lateral ward ; the ulna medial ward. The two bones are joined together between them by a membrane; the inter-osseous membrane.
- Details
- Hits: 3988
Sleep Apnea - A Sleep Disorder That Can Be Fatal
Sleep Apnea is a serious sleep disorder that can be life threatening and at times fatal. People with sleep apnea often fall asleep normally; however, once asleep their ability to breathe is blocked. Usually this inability to breathe is caused by the muscles in the throat relaxing too much and collapsing into the airway. The body then sends a signal to the brain that breathing has temporarily been blocked. This causes the person to wake up and start breathing again.
- Details
- Hits: 5268
Nose (Nasus externus) anatomy - Anatomy of the nose
There may be recognized in the nose a base, which is directed downward, and a root, situated between the two orbits; the rounded anterior surface is directed forward and upward and is termed the dorsum, and it terminates in the tip of the nose, or apex nasi. The margins representing the lower borders of the base pass backward from the tip to form the alee, and they constitute the lateral boundaries of the nostrils (nares), which are separated from each other by the antero-inferior portion of the nasal septum, the membranous septum.
- Details
- Hits: 8403
Children and Blood Pressure
Did you know that even babies can develop high blood pressure? Many might think of this as uncommon but it isn't. When babies have high blood pressure it is usually because they are premature or have kidney or heart problems. When an older child has high blood pressure it is usually a result of their family history.
As you might have noticed today, there is an increase in obesity in children. This also increases their blood pressure putting them at health risks. A great way to prevent this is to have your child's blood pressure checked often as they grow older.
- Details
- Hits: 4077
Deep veins of the upper limb (upper extremity)
The deep veins, although posterior in their appearance with the surface veins acquired in the adult, by the development of the muscular masses, a volume usually higher than that of the subcutaneous veins.
- Details
- Hits: 5366
What Is a Cataract Surgery?
Cataract is an opacity or cloudiness of the eye’s crystalline lens and is usually experienced by adults. The cloudiness results to poor vision and eventual blindness. Many individuals all over the world are trapped within this condition, and most are aspiring for best possible treatments and relief. The common symptoms of cataract include blurry and cloudy vision, dim vision, difficulty in night vision, oversensitivity to light and more. Cataract symptoms are influenced by the location of the cataract in the lens of the eyes.
- Details
- Hits: 5546
Anatomy of the Renal arteries
The renal arteries, two, arise on the side faces from the abdominal aorta, a little below the anterior mesenteric artery, on the level of the second lumbar vertebra. Their volume is important their diameter can reach 8 millimeters. Generally the renal arteries are detached at the same level, sometimes the left renal artery arises on a higher level. It is traditional to say that the arteries move horizontally outwards but the assertion is not absolutely exact: indeed, these arteries move obliquely bottomward, forming with the aorta an acute angle which can go down up to 45 degrees. In addition to this obliqueness in the frontal plan, the renal artery follows a curve of a posterior concavity which adapts to the convexity of the vertebral body this curve is more marked on the right than on the left.
- Details
- Hits: 3783
Presbyopia Farsightedness
Myopia and presbyopia are common eye disorders that affect both young and old. A person affected by myopia or also known as nearsightedness hardly sees objects from a distance and sees objects clearly when near. Presbyopia or also called long-farsightedness is an eye disorder that makes it hard for the affected person to see objects closely and have a clear view of distant objects. When individuals are young, their eye lenses are flexible and soft. Lens of the eye changes its shape simply and allows you to focus on objects both far away and close. After the age of forty, lens of the eye becomes a lot rigid. As lenses cannot change shape easily as it once did, it is a lot difficult to read at close ranges. This condition is called Presbyopia.
- Details
- Hits: 6183