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Medical Science Mcqs 5254 MCQs [All-Courses]

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Medical Science is the study of human health, diseases, prevention, and treatment, focusing on diagnosis, patient care, and medical research to improve healthcare outcomes.

All Topics  5254

The key hole, pattern appearance in the cross section is feature of______________?

A Aprismatic enamel
B Prismatic enamel
C Intertubular dentin
D Intratubular dentin
Correct Answer: Prismatic enamel

The class of low molecular weight calcium binding proteins seen predominantly in developing enamel are_____________?

A Enamelin
B Amelogenin
C Tuftelin
D Ameloplakin
Correct Answer: Amelogenin

Metalloprotienases are used in which stage of the amelogenesis_____________?

A Organising
B Formative/ Secretory
C Protective
D Desmolytic
Correct Answer: Formative/ Secretory

Nutritional supply of the ameloblasts during most of their life cycle is from the_____________?

A Dental pulp
B Odontoblastic processes
C Dental sac
D Reduced dental organ
Correct Answer: Dental sac

Neonatal line is also referred to as______________?

A Retzius line
B Line of cross striations
C Incremental lines
D Line of enamel tufts
Correct Answer: Incremental lines

Among the following the structure that is most calcified is_______________?

A Enamel lamella
B Enamel rod
C Enamel spindle
D Enamel tuft
Correct Answer: Enamel rod

Synthesis of enamel matrix proteins occurs in the________________?

A Outer enamel epithelium
B Ameloblast
C Stratum intermedium
D Stratum granulosum
Correct Answer: Ameloblast

Enamel is laid down______________?

A Mainly by odontoblasts
B Mainly by ameloblasts
C Only on odontoblasts
D Only by ameloblasts
Correct Answer: Only by ameloblasts

The striking difference between enamel and other mineralized tissues is______________?

A Presence of high percentage of organic matrix
B Presence of incremental lines
C Enamel has high reparative capacity
D Most of organic component is lost during mineralization
Correct Answer: Most of organic component is lost during mineralization

Formation of dentin by odontoblasts begins in_______________?

A Morphogenic stage
B Organizing stage
C Desmolytic stage
D Formative stage
Correct Answer: Organizing stage
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