NEET MDS Shorts
62108
Oral Pathology
Recurrent ulcers on the gingiva and palate are most commonly associated with herpes simplex virus (HSV) infections. Herpes simplex can cause painful vesicular lesions that eventually ulcerate, leading to recurrent oral ulcers, particularly in the mucosal areas such as the gingiva and palate.
Aphthous ulcers (option 1) typically occur on non-keratinized mucosa and are not usually found on the gingiva. Koplick spots (option 3) are associated with measles and are not ulcers but rather small, bluish-white spots on the buccal mucosa. Behcet's syndrome (option 4) can cause oral ulcers, but they are often more widespread and associated with systemic symptoms. Therefore, the most probable cause of recurrent ulcers specifically on the gingiva and palate is herpes simplex.
23581
Physiology
Tubulo-glomerular feedback (TGF) and glomerulo-tubular feedback (GTF) are both important in regulating sodium reabsorption in the kidney tubules. TGF involves the macula densa sensing the sodium chloride concentration in the tubular fluid and adjusting the glomerular filtration rate accordingly, while GTF is the adjustment of tubular sodium reabsorption in response to changes in glomerular filtration rate.
15487
PharmacologyThe drug currently in wide use for treating opioid dependent individuals is metahdone
87233
Oral SurgeryThe tips of anatomic forceps should be placed on the root surface as far apically as possible.
52183
Orthodontics
SOLUTION Angle of Convexity The angle of convexity is formed by the intersection of line from N to point A, to point A to pogonion.
37568
General Medicine
The combination of fever, chills, and right iliac fossa pain with a pelvic mass and leukocytosis is most indicative of a tubo-ovarian abscess. This condition is often a complication of pelvic inflammatory disease, which can be caused by a variety of bacterial pathogens including sexually transmitted infections.
39964
PeriodonticsANUG is caused by Borrelia vincenti and Fusobacterium.
91174
Physiology
Answer: 1) Decreased heart rate
Explanation: In the heart, acetylcholine acts on muscarinic receptors, which are present on the sinoatrial (SA) and atrioventricular (AV) nodes. This leads to a decrease in heart rate by slowing the sinoatrial (SA) node's automaticity and increasing the time it takes for an electrical impulse to pass through the AV node.
25495
General Medicine
Chronic kidney disease can lead to hypertension, anemia, and hyperkalemia due to impaired renal function. However, hypernatremia is typically associated with decreased water intake or increased water loss, not increased sodium levels.
75616
INI CET
Dideoxy nucleotides (ddNTPs) are used in DNA sequencing (Sanger method) to terminate chains. Standard PCR only requires dNTPs.