NEET MDS Shorts
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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.
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PeriodonticsSubgingival calculus is often found in the lower anterior region due to the anatomy and position of the teeth.
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Oral medicineTrismus in parapharyngeal abscess is due to spasm of the medial pterygoid muscle. The infection in the parapharyngeal space causes irritation and reflex spasm of this muscle, which is closely related anatomically to this space, resulting in restricted mouth opening.
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Pharmacology
Functions of delta type opioid receptors are: supraspinal analgesia
spinal analgesia
modulation of hormone and neurotransmitter release
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Oral PathologyMitotic delay is longer with a large dose of radiation.
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General MicrobiologyA positive oxidase test for Neisseria colonies results in a deep purple coloration.
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Public Health DentistryIn a double-blind study, neither the participants nor the experimenters know who is receiving the treatment or the placebo. This is to prevent any bias in the study results due to the expectations of the participants or the researchers. The statement that the investigator can omit data that fails to support the hypothesis is not correct; data should be analyzed as is to maintain the integrity of the study.
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Oral PathologyAll these conditions contain multinucleated giant cells histologically.
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NEETMDS
Uhthoff's phenomenon (or sign) is the temporary worsening of neurological symptoms in multiple sclerosis (MS) due to an increase in body temperature.
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General PathologyNiemann-Pick disease is characterized by a deficiency of sphingomyelinase, not aryl sulfatase, and involves chromosome 11 in its genetic basis.