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NBDHE PRACTICE TEST QUESTIONS AND ANSWERS
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NBDHE PRACTICE TEST QUESTIONS AND ANSWERS
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NBDHE PRACTICE TEST QUESTIONS AND ANSWERSWhich is the functional unit of striated muscle?
A. A band
B. I band
C. H Zone
D. Sarcomere - Answers -D. Sarcomere
Slightly damaged tissue completely returns to its normal structure and function in which
healing process?
A. Primary intention
B. Regeneration
C. Repair
D. Secondary intention - Answers -B. Regeneration
The two buccal roots are normally about the same length in:
A. The maxillary first molars only
B. the maxillary second molars only
C. the maxillary third molars only
D. both maxillary first and second molars - Answers -B. the maxillary second molars
only
In a normal differential blood count, which is the most numerous white blood cell?
A. Basophils
B. Lymphocytes
C. Monocytes
D. Neutrophils - Answers -D. Neutrophils
The most common autopsy finding in instances of sudden death as a result of
myocardial infarction is:
A. aneurysm of the heart wall
B. coronary thrombosis
C. fibrous pericarditis
D. valvular prolapse - Answers -B. coronary thrombosis
Which is not a characteristic of salivary glycoproteins?
A. block binding of bacteria to pellicle
B. enhance binding of bacteria to tooth surfaces
C. interact with calcium and phosphate in hydroxyapatite
D. result from lysis of bacterial cell walls - Answers -B. enhance binding of bacteria to
tooth surfaces
Each of the following statements is correct regarding saltatory conduction except one.
What is the exception?
A. it involves the nodes of Ranvier
B. it is associated with unmyelinated axons
, C. it is energy saving
D. it is faster - Answers -B. It is associated with unmyelinated axons
Each of the following is a rule for antibiotic selection when managing an oral infection
except one. Which is the exception?
A. debride infectious debris
B. provide effective environment for host immune response
C. select agent to which infecting organism is susceptible
D. select agent with broadest spectrum of activity - Answers -D. Select agent with
broadest spectrum if activity
Thyroxine increases each of the following except one. Which is the exception?
A. metabolic rate and heart production
B. oxygen consumption, breathing, and cardiac output
C. production of thyroid stimulating hormone by the pituitary gland
D. protein synthesis and enzyme production by cells - Answers -C. production of thyroid
stimulating hormone by the pituitary gland
Which is correct concerning the primitive groove?
A. assists in the formation of trilaminar germ disc
B. located on the endoderm
C. located on the mesoderm
D. precursor of the bilaminar germ disk - Answers -D. precursor of the bilaminar germ
disk
Which is a pathologic wearing away of tooth structure through some abnormal
mechanical process?
A. Abrasion
B. Attrition
C. Bruxism
D. Erosion - Answers -B. Attrition
Which characteristic of bacteria influences relative numbers in early plaque?
A. adherence to pellicle
B. formation of bacterial coaggregations
C. multiplication in an aerobic environment
D. survival in an acid environment - Answers -D. adherence to pellicle
How many milligrams of epinephrine is contained in a dental cartridge of prilocaine with
1:200,000 epinephrine?
A. 0.005
B. 0.009
C. 0.018
D. 0.036 - Answers -B. 0.009
Guanethidine is especially prone to produce which adverse effect?
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