NEET MDS Shorts
42364
General MicrobiologyPrions are extremely small infectious agents, typically measuring between 4 to 6 nanometers in diameter. Their small size contributes to their ability to evade the immune system and resist conventional sterilization methods.
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Anatomy
The muscle least related to the pterygomandibular raphe is the lateral
pterygoid. The pterygomandibular raphe primarily connects the superior
pharyngeal constrictor and the buccinator muscles, while the medial and lateral
pterygoid muscles are involved in the movement of the jaw but do not have a
direct attachment to the raphe. Here’s a breakdown of the relationships: Muscle Relationships to the Pterygomandibular Raphe Attaches to the posterior margin of the pterygomandibular raphe. Plays a role in swallowing and constricting the pharynx. While not directly attached, it is located near the pterygomandibular
raphe and contributes to jaw movement. Least related to the pterygomandibular raphe. Primarily involved in moving the jaw forward and side to side, with
no direct attachment to the raphe. Attaches to the anterior margin of the pterygomandibular raphe. Important for chewing and keeping food between the teeth.
98315
Prosthodontics
The reciprocal clasp arm is designed to
counteract the forces exerted by the retentive clasp arm during
insertion and removal of a removable partial denture (RPD). It should be placed on the lingual surface of the abutment
tooth. The correct position is at the junction of the middle and
gingival thirds of the tooth. This ensures: Stability against lateral forces. Reciprocation to balance the retentive clasp. Comfort and minimal interference with
occlusion. Retentive clasp arm → placed in the gingival third
(below the height of contour). Reciprocal clasp arm → placed in the middle third or
at the junction of middle and gingival thirds (above the height of contour). Together, they provide retention + reciprocation for
functional balance.
40736
Oral PathologyTrigeminal neuralgia does not disturb the patient during sleep.
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Pharmacology
Passive diffusion: The movement of drug across a membrane in a manner driven solely by the concentration gradient. In passive diffusion, drug moves from a region of greater concentration to a region of lesser concentration.
66127
Prosthodontics
26367
General Medicine
H. pylori produces the enzyme urease, which breaks down urea into ammonia and carbon dioxide, raising the local pH around the bacteria and protecting them from the acidic gastric environment.
26312
RadiologyThe density of a radiographic film is inversely proportional to factors like collimation, filtration, and target-film distance, but not to kilovoltage (kV), which affects the quality of the image.
78911
NEETMDS
Supracrestal fibrotomy (also known as circumferential supracrestal fibrotomy or CSF) is a surgical procedure performed to sever the supracrestal fibers around a tooth, which helps prevent relapse of corrected rotations, especially in the maxillary canine region, as these fibers are primarily responsible for the rotational memory of the tooth and subsequent relapse.
59212
General PathologyMicroabscesses and granulomatous inflammation are typical microscopic findings in subacute granulomatous thyroiditis.