NEET MDS Shorts
30719
Physiology
The frontal eye field, located in the dorsolateral part of the frontal lobe, is involved in the control of voluntary eye movement. It is part of the motor system and helps in the planning and execution of saccadic movements.
14448
PedodonticsProbing depth can be accurately assessed on the proximal surface of a tooth by slanting the tip of the probe apical to the contact area.
53389
Dental Anatomy
The primary teeth begin to form in utero at about six weeks. Hard tissue
formation occurs in all primary teeth by the 18th week in utero. 3. The
permanent teeth begin to develop at approximately four months of age in utero.
Maxillary and mandibular first molars begin to calcify at birth.
75059
PhysiologyThe physiological capacity of the bladder, at which micturition is normally effected, ranges between 250 ml - 450 ml, indicating the volume at which the urge to urinate is felt.
61781
ProsthodonticsThe primary stress-bearing area in the mandibular edentulous ridge is the buccal shelf.
12716
RadiologyToo light, thin, faded image on radiographic film is the result of exhausted developer solution.
15902
General Medicine
Cushing's ulcers are typically found in the stomach, often along the lesser curvature or the anterior wall, and are associated with increased gastric acid secretion secondary to excessive vagal stimulation due to intracranial lesions.
34495
EndodonticsAll listed conditions are contraindications: compromised general health affects healing, deep periodontal pockets with mobility indicate poor prognosis, and anatomical inaccessibility prevents proper surgical technique.
62613
EndodonticsHydroxylation of protocollagen to true collagen in wound healing requires all three factors: 1) Oxygen - provides the oxidizing environment necessary for the hydroxylation reaction, 2) Ferric ion (Fe3+) - acts as a cofactor for the enzyme prolyl hydroxylase, 3) Ascorbic acid (Vitamin C) - essential cofactor that maintains iron in the ferrous state and is required for prolyl and lysyl hydroxylase activity. Deficiency of any of these factors leads to defective collagen synthesis, resulting in poor wound healing and scurvy-like symptoms.
49886
Pharmacology
Bio-availability of all proton pump inhibitors is reduced by food; they should be taken in empty stomach, followed 1 hour later by a meal to activate H+K+ ATPase and make it more susceptible to the proton pump inhibitor.