NEET MDS Shorts
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State PSC PYQOral lichen planus (OLP) is a chronic inflammatory disorder , Oral lichen planus shows consistent epidemiological association with hepatitis C virus infection, therefore screening for HCV is recommended during diagnosis.
45819
Physiology
The absolute refractory period occurs during the initial phase of repolarization after an action potential. During this period, the membrane is inactivated and cannot be depolarized to generate another action potential, regardless of the stimulus strength. This ensures that action potentials are unidirectional and do not propagate backward along the axon.
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Physiology
The enteric nervous system, also known as the gut-brain, is a network of neurons that controls the muscular activity of the gastrointestinal tract. It is capable of operating independently of the central nervous system but can be modulated by it. Its main function is to regulate motility and secretion within the GI tract, which includes coordinating peristaltic contractions that propel food and facilitate mixing and absorption.
21923
NEETMDSThe plateau phase is a sustained depolarization during the action potential, which is a characteristic feature of cardiac muscle cells, including those in the Purkinje fibers, atria, and ventricles. It is caused by the prolonged opening of voltage-gated calcium channels. Among the options provided, Purkinje fibers exhibit this phase.
62337
PedodonticsThe PMA index measures the severity of gingivitis and periodontitis.
41855
ProsthodonticsExplanation: Increasing the VDO can lead to increased vertical clearance between the teeth, potentially causing them to click during function. This can also affect the patient's speech and the stability of the denture. It is important to carefully evaluate and adjust the VDO to minimize these issues.
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Oral PathologyCongenital hyperthyroidism does not typically cause delayed eruption of teeth.
95149
ProsthodonticsThe impression material that can record tissues in functional form is impression paste.
22295
State PSC PYQSplinting mobile teeth helps to stabilize them by distributing the forces of chewing (occlusal forces) across a wider area, which reduces trauma to individual teeth and supporting structures. This stabilization is considered the primary objective in periodontal therapy. While it may indirectly help prevent further bone loss or improve comfort, the direct mechanical goal is force distribution.
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State PSC PYQAggressive periodontitis is characterized by rapid attachment loss and bone destruction, but the amount of microbial deposits (plaque and calculus) is typically inconsistent with the severity of the destruction, often appearing minimal. The other options (deep pockets in all areas, increased mobility without clinical signs, widespread gingival recession) are general signs of periodontal disease but not specific diagnostic features that differentiate aggressive from chronic forms.