NBDHE Dental Hygienist Pra
(Updated 2025-2026
A. stratified squamous epithelium.
The type of epithelial tissue that
lines the oral cavity is called
RATIONALE: Stratified squamous epithelium lines
A. stratified squamous epithelium.
columnar epithelium is tall and narrow; it lines th
B. simple columnar epithelium.
cervix of the uterus. Simple cuboidal epithelium i
C. simple cuboidal epithelium.
and lines the ovaries. Note that pseudo-stratified
D. pseudo-stratified columnar
appears stratified, but is in fact, only one layer.
epithelium.
epithelium lines is found in the trachea.
A. The temporal process of the zygomatic bone a
The cheekbone is composed of the process of the temporal bone
A. The temporal process of the
zygomatic bone and the zygomatic RATIONALE: The zygomatic arch (cheekbone) is
process of the temporal bone temporal process of the zygomatic bone and the
B. The zygomatic process and the of the temporal bone. The zygomatic process art
zygomatic bone zygomatic bone and completes the infraorbital ri
C. The palatine processes processes articulate with each other to form the
D. The frontal process and the portion of the hard palate and the median palatin
frontal bone. process articulates with the frontal bone, formin
rim with the lacrimal bone.
C. The temporal bones
What bones form the lateral walls
of the skull? RATIONALE: The temporal bones (paired bones)
A. The cranial bones of the skull. The cranial bones, or neurocranium,
B. The occipital bone surround the brain; four singular bones, two paire
C. The temporal bones occipital bone (single bone) forms the posterior
, A. mitochondria
A structure in the cell that contains
a single, circular DNA, and RATIONALE: Mitochondria are powerful cellular
synthesizes adenosine contain a single circular DNA, and synthesize the
triphosphate (ATP) is the source of energy, adenosine triphosphate (ATP).
A. mitochondria. digestive enzymes and lead the breakdown of fo
B. lysosome. the process of phagocytosis. Endoplasmic reticul
C. endoplasmic reticulum. protein synthesis and the transport of nutrients to
D. Golgi apparatus. golgi apparatus stores, packs, and transfers prot
cellular components to the exterior of a secretor
D. maxillary first premolar
Which tooth is known for its RATIONALE: In about 60% of maxillary 1st
bifurcated root? premolars a bifurcation occurs in the
A. Mandibular second premolar apical third to half of the root. This
B. Maxillary second premolar bifurcation forms one facial and one
C. Maxillary first premolar lingual root. The mandibular second
D. Mandibular first premolar premolar, the maxillary second premolar,
and the mandibular first premolar each
have only one root.
C. Mandibular central incisor
Which of the following permanent
teeth occlude with only one tooth
RATIONALE: Assuming ideal occlusal relations, th
in the opposite arch, assuming
incisor occludes with only the maxillary central in
ideal relations exist?
canine occludes with the mandibular canine and 1
A. Maxillary canine
the maxillary first molar occludes with both the m
B. Maxillary first molar
second molars. Also occluding with more than on
C. Mandibular central incisor
mandibular 1st premolar which occludes with the
D. Mandibular first premolar
first premolar.
(Updated 2025-2026
A. stratified squamous epithelium.
The type of epithelial tissue that
lines the oral cavity is called
RATIONALE: Stratified squamous epithelium lines
A. stratified squamous epithelium.
columnar epithelium is tall and narrow; it lines th
B. simple columnar epithelium.
cervix of the uterus. Simple cuboidal epithelium i
C. simple cuboidal epithelium.
and lines the ovaries. Note that pseudo-stratified
D. pseudo-stratified columnar
appears stratified, but is in fact, only one layer.
epithelium.
epithelium lines is found in the trachea.
A. The temporal process of the zygomatic bone a
The cheekbone is composed of the process of the temporal bone
A. The temporal process of the
zygomatic bone and the zygomatic RATIONALE: The zygomatic arch (cheekbone) is
process of the temporal bone temporal process of the zygomatic bone and the
B. The zygomatic process and the of the temporal bone. The zygomatic process art
zygomatic bone zygomatic bone and completes the infraorbital ri
C. The palatine processes processes articulate with each other to form the
D. The frontal process and the portion of the hard palate and the median palatin
frontal bone. process articulates with the frontal bone, formin
rim with the lacrimal bone.
C. The temporal bones
What bones form the lateral walls
of the skull? RATIONALE: The temporal bones (paired bones)
A. The cranial bones of the skull. The cranial bones, or neurocranium,
B. The occipital bone surround the brain; four singular bones, two paire
C. The temporal bones occipital bone (single bone) forms the posterior
, A. mitochondria
A structure in the cell that contains
a single, circular DNA, and RATIONALE: Mitochondria are powerful cellular
synthesizes adenosine contain a single circular DNA, and synthesize the
triphosphate (ATP) is the source of energy, adenosine triphosphate (ATP).
A. mitochondria. digestive enzymes and lead the breakdown of fo
B. lysosome. the process of phagocytosis. Endoplasmic reticul
C. endoplasmic reticulum. protein synthesis and the transport of nutrients to
D. Golgi apparatus. golgi apparatus stores, packs, and transfers prot
cellular components to the exterior of a secretor
D. maxillary first premolar
Which tooth is known for its RATIONALE: In about 60% of maxillary 1st
bifurcated root? premolars a bifurcation occurs in the
A. Mandibular second premolar apical third to half of the root. This
B. Maxillary second premolar bifurcation forms one facial and one
C. Maxillary first premolar lingual root. The mandibular second
D. Mandibular first premolar premolar, the maxillary second premolar,
and the mandibular first premolar each
have only one root.
C. Mandibular central incisor
Which of the following permanent
teeth occlude with only one tooth
RATIONALE: Assuming ideal occlusal relations, th
in the opposite arch, assuming
incisor occludes with only the maxillary central in
ideal relations exist?
canine occludes with the mandibular canine and 1
A. Maxillary canine
the maxillary first molar occludes with both the m
B. Maxillary first molar
second molars. Also occluding with more than on
C. Mandibular central incisor
mandibular 1st premolar which occludes with the
D. Mandibular first premolar
first premolar.
