MDS PREP
Mandibular premolars differ from maxillary premolars in that, mandibular premolars have all of the following characteristics, except
1. have crowns much more rounded and lingual cusp not so strongly developed.
2. have roots much less flattened mesiodistally and seldom bifurcated
3. they are wider mesiodistally
4. have crowns tilted to the lingual in relation to the long axis of the root
Dental Anatomy
Answer: 3
Which of the following is the prime muscle in retracting and elevating the mandible?
1. Masseter
2. Digastric
3. Mylohyoid
4. Temporalis
Anatomy
Answer: 4
Among all of the following foramens in the base of skull which is the most posteriorly present:
1. Foramen spinosum.
2. Foramen rotundum.
3. Foramen Lacerum.
4. Foramen Ovale.
Anatomy
Answer: 1
Approximately what percentage of root ca is completed at the time the tooth erupts?
1. 25
2. 50
3. 75
4. 90
Dental Anatomy
Answer: 2
Medial pterygoid is supplied by:
1. Anterior division of mandibular nerve
2. Posterior division of mandibular nerve
3. Main trunk of mandibular nerve
4. Nerve to pterygoid canal.
Anatomy
Answer: 3
The one calcified structure of a tooth incapable of continued growth after eruption is the
1. enamel.
2. dentin.
3. cementum.
4. true denticle.
Anatomy
Answer: 1
In temporomandibular joint least vascularity is seen in which of the following:
1) Articular cartilage
2) Anterior part of articular cartilage
3) Posterior part of articular cartilage
4) Central part of articular disc
Anatomy Answer: 4
Starlings law of the Heart is a consequence of which of the following properties of cardiac muscle?
1) Length-tension relationship
2) Functional syncytium
3) Unidirectional conduction
4) Positive chronotropic effect
Anatomy Answer: 1