NEET MDS Shorts
58572
General Medicine
TNF is considered the main effector of injury in alcoholic hepatitis. It is produced by activated macrophages, particularly Kupffer cells, and plays a critical role in the initiation and perpetuation of inflammation and necrosis in the liver.
68740
General Microbiology
C1. Tetani (Clostridium tetani) It is a spore-forming, gram-positive
bacillus that causes tetanus, a neurological disorder resulting from the
production of tetanospasmin, a toxin that affects the nervous system. It is
usually found in soil, dust, and manure, and enters the body through breaks in
the skin. C1. Perfringens (Clostridium perfringens) is an anaerobic, gram-positive
bacillus commonly found in the gastrointestinal tract and soil. It can be a part
of the normal flora in the intestines and is also a pathogen, causing diseases
such as food poisoning and gas gangrene.
C1. Difficule (Clostridium difficule) is an anaerobic, gram-positive
spore-forming bacillus that is part of the human gut microbiota. It is notorious
for causing antibiotic-associated diarrhea and pseudomembranous colitis.
C1. Botulinum (Clostridium botulinum) is an anaerobic, spore-forming,
gram-positive bacillus found in various environments, including soil and water.
It is known for producing the neurotoxin that causes botulism, a rare but severe
form of food poisoning.
75148
Oral SurgeryWhen the mandible is fractured bilaterally in the canine region, the central fractured segment loses the anterior pull from the muscles attached to it. The geniohyoid, genioglossus, and anterior belly of the digastric muscles are all attached to this segment and pull it posteriorly and inferiorly.
22697
Oral Pathology
Reversible pulpitis changes to irreversible pulpitis primarily because of
invasion of microorganisms.
Reversible pulpitis is a condition where the pulp is inflamed but can
potentially heal if the causative agent is removed and the pulp remains vital.
Irreversible pulpitis, however, occurs when the inflammation is severe or
chronic, leading to irreversible damage to the pulp. The primary reason for this
progression is typically the invasion of microorganisms and their byproducts,
which can cause further inflammation and necrosis of pulpal tissue, making
healing unlikely.
60970
INI CET
The Z-test is applied when the sample size is greater than 30 and the population follows a normal distribution, as the sample mean is considered to be normally distributed in such cases due to the Central Limit Theorem.
48452
RadiologyThe technique employed in radiotherapy to counteract the effect of tumour motion due to breathing is known as gating.
95619
Physiology
The rate of gastric emptying is influenced by the type and amount of food consumed. In healthy individuals, it typically takes 1-4 hours for the stomach to empty its contents into the duodenum. The rate of emptying can be slower with high-fiber or high-fat meals and faster with liquids. Factors such as gastric motility, the presence of gastric emptying hormones, and the presence of food in the intestine also play a role in this process.
91360
Dental MaterialsWater interferes with chemical adhesion of the polycarboxylate cement to enamel
97795
Oral PathologyProthrombin time (PT) is a measure of the blood's clotting ability. In dentistry, a PT level of 20% below normal is often considered a threshold for increased risk of bleeding during surgical procedures such as tooth extraction. At this level, the patient may be at risk for prolonged bleeding or hemorrhage. Dentists typically assess a patient's coagulation status before performing invasive procedures, especially if the patient has a known bleeding disorder or is on medications that affect clotting.
37260
Oral SurgeryThe best example of an elevator which works on wheel and axle principle is Winter cross bar elevator.