MDS PREP
The facial aspect of an intraoral film is determined by the
1. Anatomic landmarks
2. Concavity of the embossed dot
3. Convexity of the embossed dot
4. Curvature of the arch
Oral Pathology
Answer: 3
The facial aspect of an intraoral film is determined by the convexity of the embossed dot.
In the lipooxygenase pathway of the arachidonic acid metabolism, which of the following products helps to promote platelet aggregation and vasoconstriction?
1) C5a
2) Thromboxane A2
3) Leukotriene B4
4) C1 activators
General Pathology
Answer: 2
Thromboxane A2, produced in the lipooxygenase pathway, promotes platelet aggregation and vasoconstriction, playing a key role in hemostasis.
All of the following may occur in achondroplasia, except
1. Short and thickened muscular extremities
2. Dwarfism
3. The elbows often cannot be folded
4. Bowed legs and small hands
Oral Pathology
Answer: 3
In achondroplasia, the elbows often cannot be folded is not true; they can be folded.
Hairy tongue is characterised by hypertrophy of which of the following papillae
1. Foliate
2. Filiform
3. Fungiform
4. Circumvallate
Oral Pathology
Answer: 2
Hairy tongue is characterized by the hypertrophy of filiform papillae on the tongue, leading to a dark, hairy appearance.
Which of the following tooth structure during formation is most affected due to Vit A deficiency
1. Enamel
2. Dentin
3. Cementum
4. Periodontal ligament
Oral Pathology
Answer: 1
Enamel is most affected during formation due to Vitamin A deficiency.
Mean exposure at skin from an intraoral periapical radiographs
1. 300 mR
2. 0.03 mR
3. 47 mR
4. Both A and B
Oral Pathology
Answer: 4
Mean exposure at the skin from intraoral periapical radiographs is 0.03 mR.
The histiocytosis X is a spectrum of disorders, which include the following conditions
1. Eosinophilic granuloma
2. Hand-Schuller-Christian disease
3. Letterer-Siwe disease
4. All of the above
Oral Pathology
Answer: 4
Histiocytosis X includes eosinophilic granuloma, Hand-Schuller-Christian disease, and Letterer-Siwe disease.
Quantity of current can be increased by
1. Increased milliamperage
2. Increased time
3. Increased tube current
4. All of the above
Oral Pathology
Answer: 4
Quantity of current can be increased by increasing milliamperage, time, and tube current.