NEET MDS Shorts
34591
General PathologyThe primary defect in sickle cell anemia is the replacement of glutamic acid by valine in the ?-chain of hemoglobin, leading to the sickling of red blood cells.
92462
Oral Medicine
The initial event in a vasovagal syncope episode is an increase in catecholamine release, leading to a decrease in peripheral vascular resistance and tachycardia.
98006
Oral PathologyJunctional nevi are moles where the nevus cells (melanocytes) are located at the junction of the epidermis (outer layer of skin) and the dermis (inner layer of skin). Because they are in the basal layer of the epidermis, where melanomas originate, they have a higher potential for malignant transformation into melanoma compared to intradermal nevi, where cells are deeper in the dermis. Lichen planus and papillomas are generally benign conditions
54869
General Medicine
Crohn's disease most commonly affects the distal ileum, which is the last part of the small intestine that connects to the large intestine.
37536
Dental Materials
If the temperature of the water used to mix gypsum products exceeds 50°C, it can slow down the setting reaction due to the reversible nature of the gypsum crystal formation at higher temperatures.
23022
PedodonticsLateral food impaction occurs mainly due to open proximal contact.
37513
INI CET
The right phrenic nerve passes through the vena caval opening (at T8 level) along with the inferior vena cava.
[Image of the diaphragm openings]
16459
Prosthodontics
Explanation: The cold cure resin by the sprinkle-on method
provides a stable and accurate temporary record base for edentulous patients.
This method allows for better adaptation to the oral tissues and ensures a more
reliable fit during the recording of jaw relations.
33415
PedodonticsThe primary objective of scaling and root planing is to restore the gingival tissue to health.
19422
Oral PathologyFibrous ankylosis is the most common complication of rheumatoid arthritis involving the TMJ. RA causes chronic synovitis, leading to destruction of articular cartilage and subchondral bone. This inflammatory process results in scar tissue formation and fibrous adhesions between articular surfaces, causing restricted mouth opening. While condylar resorption may occur, fibrous ankylosis is more frequent and characteristic of RA progression.