75059

The physiological capacity of the bladder, at which micturition is normally effected, ranges between 250 ml - 450 ml, indicating the volume at which the urge to urinate is felt.

11024

The initial clinical sign of phenytoin-induced gingival enlargement is typically the enlargement of the interdental papillae, which then progresses to involve the marginal gingiva. The tissue usually appears pale and fibrotic, rather than inflamed or bleeding.

51794

• Fixed component:

  • Usually supported by implants or natural teeth.

  • Provides rigidity and stability.

• Removable component:

  • Supported by soft and hard tissues of the mouth.

  • Can be taken out for cleaning and maintenance.

42079

69872

Dry heat sterilization of paper points without incineration is accomplished at 160°C for 2hours

56252

Carbonic anhydrase is present in the tubular cells and accelerates the reaction of carbon dioxide and water to form carbonic acid, which then dissociates into bicarbonate and hydrogen ions. This facilitates the reabsorption of bicarbonate into the blood and maintains the acid-base balance.

30973

The first vascular reaction in inflammation is Vasodilation.

Explanation:

Inflammation is the body's protective response to tissue injury or infection. It is characterized by the classical signs of redness (rubor), heat (calor), swelling (tumor), pain (dolor), and loss of function (functio laesa). The initial vascular changes in the inflammatory process include:

1. Vasoconstriction: This is a temporary response that occurs immediately after injury to minimize blood loss. However, it is quickly followed by the more significant and prolonged phase of vasodilation.

2. Vasodilation: This is the first major vascular reaction in the inflammatory response. Vasodilation occurs due to the release of substances such as histamine, bradykinins, and prostaglandins from the damaged tissue cells and mast cells. These substances are known as vasodilators and they cause the smooth muscles surrounding the blood vessels to relax, leading to an increase in the diameter of the blood vessels. This results in increased blood flow to the injured area, which is essential for delivering white blood cells, nutrients, and oxygen to the site of inflammation. The increased blood flow is what causes the characteristic redness and heat of an inflamed area.

3. Increased vascular permeability: Although it is not the first vascular reaction, increased vascular permeability is a critical component of the inflammatory process. After vasodilation, the endothelial cells that line the blood vessels become more permeable, allowing plasma and proteins to leak out of the vessels into the surrounding tissue. This leads to the formation of an exudate, which is the accumulation of fluid and proteins that makes up the swelling (edema) seen in inflammation.

4. Marginisation or Pavementing: This is the process where neutrophils (a type of white blood cell) move along the walls of blood vessels towards the site of inflammation. It occurs later in the inflammatory response after the initial vasodilation and increased vascular permeability. These cells then migrate through the vessel walls into the tissue to combat pathogens and debris.

40055

Overexposure of film results in increased density and dark film.

55924

39208

A dental assistant performs duties like assisting during procedures and sterilizing instruments but is not licensed to perform independent treatments.