NEET MDS Shorts
67885
Periodontics
Keratoacanthoma: This is a variant of squamous cell carcinoma that presents as a solitary, dome-shaped nodule with a central, hyperkeratotic crater, typically in sun-exposed areas. Its histology and gross appearance are distinct from a lobular capillary hemangioma.
93240
General MedicineCongenital rubella syndrome can lead to various complications, including patent ductus arteriosus, sensory nerve deafness, and spontaneous abortion. However, the statement "None of the above" is incorrect as all listed conditions can occur due to the syndrome.
50718
Public Health Dentistry
Pit and fissure caries are initiated by the accumulation of food debris and
bacteria in deep, narrow fissures and pits on the tooth surface, which are
protected from the normal cleansing mechanisms of the mouth, even in the absence
of a thick, mature dental plaque biofilm.
Plaque is necessary for the initiation of proximal, smooth surface, and root
surface caries.
35942
Oral SurgeryThe palatine process of the maxilla forms the anterior three-fourths of the hard palate and also contributes to the floor of the nasal cavity. If the mid portion of the palatine process is accidentally removed during maxillary torus surgery, it would directly create a communication with the nasal cavity above. Vertical fracture of the maxilla → Not a typical consequence of removing the palatine process. Opening into the maxillary antrum → That would occur if the lateral wall of the maxilla (near the sinus) is breached, not the mid-palatal region.
72066
RadiologyThe base of the skull can be viewed by both Towne's projection and Submentovertex.
96035
Physiology
Umami taste is triggered by the activation of glutamate receptors present in taste cells, which leads to the perception of savoriness.
39917
General PathologyOsteoclasts show abnormal function in conditions leading to multiple fractures, as they are responsible for bone resorption.
60427
Dental Materials
Glass ionomer cements are known for their ability to chemically bond to tooth structure, particularly dentin and enamel.
80443
Oral SurgerySemilunar flap has the most disadvantage of limited accessibility. This flap design provides minimal tissue reflection and restricted surgical access compared to envelope, three-cornered, or four-cornered flaps. It is mainly used for small, superficial procedures.
79994
Pharmacology
ACE inhibition has a beneficial impact on survival rates, functional status, and hemodynamics in patients with left ventricular systolic dysfunction.
In the renin-angiotensin system, a fall in perfusion pressure stimulates the juxtaglomerular cells in the kidney to release the enzyme renin.
Renin cleaves the decapeptide angiotensin I from angiotensinogen, a glycoprotein synthesized in the liver.
The octapeptide angiotensin II is formed by the action of ACE on angiotensin I.
Angiotensin II is a potent vasoconstrictor and stimulates the release of aldosterone and norepinephrine.