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NBDHE EXAM – NATIONAL BOARD DENTAL HYGIENE
EXAMINATION QUESTION BANK 2025/2026 ACTUAL
EXAM QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) ALL ANSWERED
{180 Q & A} ALREADY GRADED A+/ NATIONAL
BOARD DENTAL HYGIENE EXAMINATION | BRAND
NEW!
1. During swallowing, the hyoid bone moves downward. During
swallowing, the larynx elevates.
a. Both statements are true
b. Both statements are false
c. The first statement is true, the second statement is false
d. The first statement is false, the second statement is true - ✔✔✔
Correct Answer > d - false/ true
During swallowing, the hyoid bone moves upward as the larynx
elevates. After moving upward, the hyoid bone moves forward
then returns to its starting position.
2. Which nervous system produces the fight-or-flight reaction?
a. Parasympathetic
b. Sympathetic
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c. Peripheral
d. Central - ✔✔✔ Correct Answer > b - The sympathetic nervous
system releases norepinephrine to raise the heart rate and
elevate blood pressure, triggering the fight or flight reaction in a
stressful situation.
3. A patient is experiencing symptoms related to Bell's palsy.
Which cranial nerve is suffering from a motor deficit?
a. Facial
b. Trigeminal
c. Trochlear
d. Hypoglossal - ✔✔✔ Correct Answer > a - Bell's palsy causes loss of
movement to muscles due to lesions in the facial nerve. This
condition is bilateral and usually is only temporary, though it may
take several weeks prior to returning to normal use.
4. What is mobilized in and out of the blood during bone
remodeling?
a. Canaliculi
b. Osteoclasts
c. Calcium
d. Osteoblasts - ✔✔✔ Correct Answer > c - Calcium is mobilized in and
out of the bloodstream during bone remodeling. This allows new
bone formation to occur in areas of the body where it is needed.
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5. Which of the following cranial nerves pass through the
foramen ovale of the sphenoid bone?
a. Trigeminal mandibular
b. Nasopalatine
c. Trigeminal maxillary
d. Abducent - ✔✔✔ Correct Answer > a - The trigeminal mandibular
nerve passes through the foramen ovale of the sphenoid bone.
6. The maxillary branch of the trigeminal nerve passes through
the : .
a. foramen spinosum
b. superior orbital fissure
c. foramen ovale
d. foramen rotundum - ✔✔✔ Correct Answer > d - The foramen
rotundum is the opening that conveys the maxillary branch of the
trigeminal nerve.
7. Which cranial nerve is the longest and extends to the trunk of
the body?
a. Hypoglossal
b. Vagus
c. Facial
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d. Trigeminal - ✔✔✔ Correct Answer > b - The vagus nerve, or cranial
nerve X is the longest of all cranial nerves. It reaches areas of
the head and neck as well as the heart and stomach.
8. List the following digestive system structures in order of their
function during digestion of a meal.
a. Stomach.
b. Small intestine.
c. Pharynx.
d. Large intestine.
e. Esophagus. - ✔✔✔ Correct Answer > c. Pharynx.
e. Esophagus.
a. Stomach.
b. Small intestine.
d. Large intestine.
9. List the following components of a muscle fiber in order of the
LARGEST component to the SMALLEST component.
a. Myofilaments.
b. Muscle fascicle.
c. Muscle.
d. Myofibril.
NBDHE EXAM – NATIONAL BOARD DENTAL HYGIENE
EXAMINATION QUESTION BANK 2025/2026 ACTUAL
EXAM QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) ALL ANSWERED
{180 Q & A} ALREADY GRADED A+/ NATIONAL
BOARD DENTAL HYGIENE EXAMINATION | BRAND
NEW!
1. During swallowing, the hyoid bone moves downward. During
swallowing, the larynx elevates.
a. Both statements are true
b. Both statements are false
c. The first statement is true, the second statement is false
d. The first statement is false, the second statement is true - ✔✔✔
Correct Answer > d - false/ true
During swallowing, the hyoid bone moves upward as the larynx
elevates. After moving upward, the hyoid bone moves forward
then returns to its starting position.
2. Which nervous system produces the fight-or-flight reaction?
a. Parasympathetic
b. Sympathetic
,2|Page
c. Peripheral
d. Central - ✔✔✔ Correct Answer > b - The sympathetic nervous
system releases norepinephrine to raise the heart rate and
elevate blood pressure, triggering the fight or flight reaction in a
stressful situation.
3. A patient is experiencing symptoms related to Bell's palsy.
Which cranial nerve is suffering from a motor deficit?
a. Facial
b. Trigeminal
c. Trochlear
d. Hypoglossal - ✔✔✔ Correct Answer > a - Bell's palsy causes loss of
movement to muscles due to lesions in the facial nerve. This
condition is bilateral and usually is only temporary, though it may
take several weeks prior to returning to normal use.
4. What is mobilized in and out of the blood during bone
remodeling?
a. Canaliculi
b. Osteoclasts
c. Calcium
d. Osteoblasts - ✔✔✔ Correct Answer > c - Calcium is mobilized in and
out of the bloodstream during bone remodeling. This allows new
bone formation to occur in areas of the body where it is needed.
,3|Page
5. Which of the following cranial nerves pass through the
foramen ovale of the sphenoid bone?
a. Trigeminal mandibular
b. Nasopalatine
c. Trigeminal maxillary
d. Abducent - ✔✔✔ Correct Answer > a - The trigeminal mandibular
nerve passes through the foramen ovale of the sphenoid bone.
6. The maxillary branch of the trigeminal nerve passes through
the : .
a. foramen spinosum
b. superior orbital fissure
c. foramen ovale
d. foramen rotundum - ✔✔✔ Correct Answer > d - The foramen
rotundum is the opening that conveys the maxillary branch of the
trigeminal nerve.
7. Which cranial nerve is the longest and extends to the trunk of
the body?
a. Hypoglossal
b. Vagus
c. Facial
, 4|Page
d. Trigeminal - ✔✔✔ Correct Answer > b - The vagus nerve, or cranial
nerve X is the longest of all cranial nerves. It reaches areas of
the head and neck as well as the heart and stomach.
8. List the following digestive system structures in order of their
function during digestion of a meal.
a. Stomach.
b. Small intestine.
c. Pharynx.
d. Large intestine.
e. Esophagus. - ✔✔✔ Correct Answer > c. Pharynx.
e. Esophagus.
a. Stomach.
b. Small intestine.
d. Large intestine.
9. List the following components of a muscle fiber in order of the
LARGEST component to the SMALLEST component.
a. Myofilaments.
b. Muscle fascicle.
c. Muscle.
d. Myofibril.
