MDS PREP
In reverse Townes projection central X-ray passess through
1. Maxillary sinus
2. Occipital bone
3. Buperior border of petrous
4. Inferior border of petrous
Radiology
Answer: 2
In reverse Townes projection, the central X-ray passes through the occipital bone.
What is the primary function of the enteric nervous system in the gastrointestinal tract?
1) Controlling digestive enzyme secretion
2) Regulating the absorption of nutrients
3) Coordinating muscular contractions and peristalsis
4) Secreting hormones that regulate digestion
E) Controlling blood flow to the GI tract
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.
Commonly used collimating device
1. Aluminium filter
2. Lead diaphragm
3. Molybdenum cup
4. Tungsten filament
Oral Pathology
Answer: 2
Lead diaphragms are commonly used collimating devices.
Atrial fibrillation is common in
1) Adrenogenital syndrome
2) Addison"s disease
3) Hyperthyroidism
4) Von Willebrand"s disease
General Medicine
Answer: 3
Which of the following is likely to occur if the VDO is increased in a
complete denture patient?
1. Loss of lip fullness
2. Decreased nose-chin distance
3. Limited tongue space
4. Clicking of teeth
Prosthodontics
Answer: 4
Explanation: 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.
Reversible (advanced) pulpitis is
1) Aggravated by heat and relieved by cold
2) Aggravated by cold and relieved by heat
3) No reaction to heat and cold
4) Reacts to electric pulp tester
Endodontics
Answer: 1
Relining of the distal extension base is indicated when
1) Occlusal contact is lost without rotation of the base
2) Occlusal contact is lost with rotation of the base
3) Occlusal contact is firm but with rotation of jaw bases
4) All of the above
Prosthodontics
Answer: 2
The medical specialty in which there is statistically higher incidence of leukaemia
1. Dentistry
2. Internal medicine
3. Radiology
4. Anaesthesiology
Oral Pathology
Answer: 3
Radiology has a statistically higher incidence of leukemia.