NBDHE practice exam UPDATED ACTUAL
Exam Questions and CORRECT Answers
intercellular ground substance is composed of - CORRECT ANSWER - protein
carbohydrate complexes
What RNA virus is associated with the common cold? - CORRECT ANSWER -
Rhinovirus
Which generalization is correct about proximal contact areas? - CORRECT ANSWER -
Anterior teeth have contact areas that are generally centered faciolingually
Slightly damaged tissues completely returns to its normal structure and function in which healing
process? - CORRECT ANSWER - Regeneration
Pain sensation might be blocked from going to the central nervous system by other stimuli. This
is best explained by which theory? - CORRECT ANSWER - Gate Control
What term refers to complete obstruction of blood flow to a particular area - CORRECT
ANSWER - infarction
The most common autopsy finding in instances of sudden death as a result of myocardial
infarction is - CORRECT ANSWER - coronary thrombosis
formation of blood clot inside a blood vessel of the heart - CORRECT ANSWER -
Coronary Thrombosis
Deep cervical nodes are distributed along what? - CORRECT ANSWER - Internal jugular
vein
,What is true regarding saltatory conducti - CORRECT ANSWER - -it involves Nodes of
Ranvier
-It is energy saving
-It is faster
Which lipoprotein contains the greatest amount of protein? - CORRECT ANSWER - High
density
What is the functional unit of Striated muscle? - CORRECT ANSWER - Sarcomere
developmental macroglossia? - CORRECT ANSWER - Myxedema
Characteristics of salivary glycoproteins - CORRECT ANSWER - -Enhance binding of
bacteria to tooth surfaces
-Interact with calcium and phosphate in hydroxyapatite
-Results from lysis of bacterial walls
What factors determine the position of the first permanent molar? - CORRECT
ANSWER - Primary arch length
Which characteristic of bacteria influences relative numbers in early plaque? - CORRECT
ANSWER - adherence to pellicle
What id produced in the nucleolus? - CORRECT ANSWER - Ribosomal RNA
The two buccal roots are about the same length in - CORRECT ANSWER - Perm MAX
2nd molars
Anticholinergic drug used to reduce airway secretions? - CORRECT ANSWER -
Atropine- used to decrease saliva flow for dental procedures
,Cholinergic drug used to increase saliva flow in patients with Sjogrens Syndrome - CORRECT
ANSWER - Pilocarpine
immune system disorder characterized by dry eyes and dry mouth - CORRECT
ANSWER - Sjogrens syndrome
Drugs that mimic the parasympathetic nervous system - CORRECT ANSWER -
Cholinergic
Drugs that block the parasympathetic nervous system - CORRECT ANSWER - Anti-
cholinergic
anti-inflammatory action of aspirin is in part due to - CORRECT ANSWER - inhibition of
the enzyme cyclooxygenase, which leads to the formation of prostaglandins (that cause
inflammation)
Guanethidine (antihypertensive) is especially prone to produce which adverse effect? -
CORRECT ANSWER - Depression
In normal blood count, which is the most numerous white blood cell? - CORRECT
ANSWER - Neutrophils
Thyroxine - CORRECT ANSWER - Also called thryoid hormone, thyroxine is produced
and secreted by follicle cells in the thyroid gland. it targets all cells in the body and increases
overall body metabolism.
Which primary teeth are the first to erupt? - CORRECT ANSWER - Mand centrals
Max centrals/ Mand laterals - CORRECT ANSWER - 7yrs
, Max lateral - CORRECT ANSWER - 8yrs
Max Canine/ Md 2nd PM and 2molar - CORRECT ANSWER - 11 yrs
Mx 1st and 2nd PM
Md 1st PM - CORRECT ANSWER - 10yrs
Max 1st Molar
Md 1st Molar - CORRECT ANSWER - 6yrs
Max 2nd molar
Md 2 molar - CORRECT ANSWER - 11yrs
Most often missed mesial coronal and root concavity - CORRECT ANSWER - Max 1st
premolar
Premolar most often having 2 roots - CORRECT ANSWER - Max 1st premolar
Cuspid with occasionally bifurcated root - CORRECT ANSWER - Mandibluar
Tooth which most often fails to develop - CORRECT ANSWER - third molar or maxillary
lateral
Non-functional lingual cusp - CORRECT ANSWER - Mandibular first premolar
Premolar which commonly has 3 cusps - CORRECT ANSWER - mandibular second
premolar
Exam Questions and CORRECT Answers
intercellular ground substance is composed of - CORRECT ANSWER - protein
carbohydrate complexes
What RNA virus is associated with the common cold? - CORRECT ANSWER -
Rhinovirus
Which generalization is correct about proximal contact areas? - CORRECT ANSWER -
Anterior teeth have contact areas that are generally centered faciolingually
Slightly damaged tissues completely returns to its normal structure and function in which healing
process? - CORRECT ANSWER - Regeneration
Pain sensation might be blocked from going to the central nervous system by other stimuli. This
is best explained by which theory? - CORRECT ANSWER - Gate Control
What term refers to complete obstruction of blood flow to a particular area - CORRECT
ANSWER - infarction
The most common autopsy finding in instances of sudden death as a result of myocardial
infarction is - CORRECT ANSWER - coronary thrombosis
formation of blood clot inside a blood vessel of the heart - CORRECT ANSWER -
Coronary Thrombosis
Deep cervical nodes are distributed along what? - CORRECT ANSWER - Internal jugular
vein
,What is true regarding saltatory conducti - CORRECT ANSWER - -it involves Nodes of
Ranvier
-It is energy saving
-It is faster
Which lipoprotein contains the greatest amount of protein? - CORRECT ANSWER - High
density
What is the functional unit of Striated muscle? - CORRECT ANSWER - Sarcomere
developmental macroglossia? - CORRECT ANSWER - Myxedema
Characteristics of salivary glycoproteins - CORRECT ANSWER - -Enhance binding of
bacteria to tooth surfaces
-Interact with calcium and phosphate in hydroxyapatite
-Results from lysis of bacterial walls
What factors determine the position of the first permanent molar? - CORRECT
ANSWER - Primary arch length
Which characteristic of bacteria influences relative numbers in early plaque? - CORRECT
ANSWER - adherence to pellicle
What id produced in the nucleolus? - CORRECT ANSWER - Ribosomal RNA
The two buccal roots are about the same length in - CORRECT ANSWER - Perm MAX
2nd molars
Anticholinergic drug used to reduce airway secretions? - CORRECT ANSWER -
Atropine- used to decrease saliva flow for dental procedures
,Cholinergic drug used to increase saliva flow in patients with Sjogrens Syndrome - CORRECT
ANSWER - Pilocarpine
immune system disorder characterized by dry eyes and dry mouth - CORRECT
ANSWER - Sjogrens syndrome
Drugs that mimic the parasympathetic nervous system - CORRECT ANSWER -
Cholinergic
Drugs that block the parasympathetic nervous system - CORRECT ANSWER - Anti-
cholinergic
anti-inflammatory action of aspirin is in part due to - CORRECT ANSWER - inhibition of
the enzyme cyclooxygenase, which leads to the formation of prostaglandins (that cause
inflammation)
Guanethidine (antihypertensive) is especially prone to produce which adverse effect? -
CORRECT ANSWER - Depression
In normal blood count, which is the most numerous white blood cell? - CORRECT
ANSWER - Neutrophils
Thyroxine - CORRECT ANSWER - Also called thryoid hormone, thyroxine is produced
and secreted by follicle cells in the thyroid gland. it targets all cells in the body and increases
overall body metabolism.
Which primary teeth are the first to erupt? - CORRECT ANSWER - Mand centrals
Max centrals/ Mand laterals - CORRECT ANSWER - 7yrs
, Max lateral - CORRECT ANSWER - 8yrs
Max Canine/ Md 2nd PM and 2molar - CORRECT ANSWER - 11 yrs
Mx 1st and 2nd PM
Md 1st PM - CORRECT ANSWER - 10yrs
Max 1st Molar
Md 1st Molar - CORRECT ANSWER - 6yrs
Max 2nd molar
Md 2 molar - CORRECT ANSWER - 11yrs
Most often missed mesial coronal and root concavity - CORRECT ANSWER - Max 1st
premolar
Premolar most often having 2 roots - CORRECT ANSWER - Max 1st premolar
Cuspid with occasionally bifurcated root - CORRECT ANSWER - Mandibluar
Tooth which most often fails to develop - CORRECT ANSWER - third molar or maxillary
lateral
Non-functional lingual cusp - CORRECT ANSWER - Mandibular first premolar
Premolar which commonly has 3 cusps - CORRECT ANSWER - mandibular second
premolar
