What is Bronchiectasis? Bronchiectasis is abnormal and permanent dilatation of the bronchi. The trachea divides into two to give rise to bronchi. These bronchi become increased in sized (dilated) in Bronchiectasis. When the bronchi become dilated (widened), they cause chronic and recurrent infections of the airways and secretions pool within it. Bronchiectasis …
Spatial interactions include different types of movements such as travel, migration, transmission of information, journeys to work or shopping, retailing activities, or freight distribution. Our knowledge about spatial interaction can be generally or highly particularistic (specific). Normally, it seems easy to state why a particular movement takes place: the heart of a …
Extrapulmonary Tuberculosis is a type of Tuberculosis that occurs outside of the lungs. It is called Extrapulmonary Tuberculosis (EPTB) because the most common organ of the body affected by Tuberculosis is the lungs. Tuberculosis is a multi-systemic disease (it affects many organs of the body) caused by Mycobacterium Tuberculosis (M. Tuberculosis). It may occur …
What is Miliary Tuberculosis? Miliary tuberculosis is a form of Disseminated TB or Extrapulmonary TB that is caused by sudden diffuse dissemination of tubercle bacilli through the bloodstream (hematogenous spread of TB). Miliary Tuberculosis mainly occurs in children and young adults but may also occur in older people and it is insidious …
Pott Disease or Potts Disease (Spinal TB, or TB Spine) is the commonest form of joint and bone tuberculosis in West Africa and children and old age is a risk factor to having TB Spine (that is, extremes of ages predispose to having tuberculosis of the spine). TB spine is a form …
What is a Tracheostomy? A Tracheostomy is an artificial opening made on the anterior part of the neck in which the upper part of the Trachea communicates with the outside air and the opening is maintained by a Tracheostomy Tube for the purpose of relieving airway obstruction or protecting the airway in …
Vegetation in ecology plays a vital role in our natural ecosystem and also supports the biosphere in various ways. Vegetation helps to regulate the flow of numerous biogeochemical cycles, most importantly those of water, carbon, and nitrogen; it also contributes in the local and global energy balances. The term vegetation refers to …
Type 2 Diabetes Mellitus definition Type 2 diabetes mellitus is a form of Diabetes Mellitus that is also known as Non-Insulin Dependent Diabetes Mellitus (NIDDM). There are different types of Diabetes Mellitus that may occur in Children, Adults and Pregnant Women. Type 2 Diabetes Mellitus results from resistance to the action of insulin on …