NBDHE EXAM VERSION 2 NEWEST 2025/2026 COMPLETE 200
QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS)
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1. Which three of the following are lymphatic organs?
a. Tonsils
b. Pituitary gland
c. Spleen
d. Thymus
e. Kidney
f. Brain - ANSWER-a, c & d - Tonsils, Spleen, Thymus are all lymphatic organs. The
4th and final lymphatic organ not listed is the lymph nodes.
2. Order the following anatomical structures of the respiratory tract as they
appear and function in the processing of inhalation.
a. Trachea
b. Alveoli
c. Alveolar duct
d. Primary bronchi
e. Bronchiole - ANSWER-a. Trachea
d. Primary bronchi
e. Bronchiole
c. Alveolar duct
b. Alveoli
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3. What parallels the venous blood vessels and returns filtered fluids to the
bloodstream?
a. The endocrine system
b. The lymphatic system
c. The arterial blood vessel system
d. The circulatory system - ANSWER-b - The lymphatic system filters fluids and
returns them to the bloodstream from various body tissues. It parallels the venous
blood vessels.
4. What type of cell-to-cell attachments are found in enamel-forming
ameloblasts?
a. Hemidesmosome
b. Tight junctions
c. Desmosomes
d. Gap junctions - ANSWER-c - Desmosomes are the cell-to-cell attachments in
ameloblasts, which are responsible for forming tooth enamel.
5. What is the homogenous, translucent gel enclosed in a cell by the cell
membrane?
a. Lipid droplets
b. Cytoplasm
c. Lysosome
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d. Nucleus - ANSWER-b - Cytoplasm is the aqueous, translucent gel that is
enclosed in a cell by a cell membrane. It is the liquid housing that contains other
cellular particles and allows them to move about within the cell.
6. Which type of epithelia lines the oral cavity?
a. Stratisfied squamous
b. Simple squamous
c. Stratified columnar
d. Simple columnar - ANSWER-a - The oral cavity tissues such as the buccal
mucosa and gingival mucosa are lined with stratisfied squamous epithelia, the
shorter, flatter squamous cells found in multiple layers at the surface of the oral
cavity tissues.
7. MATCH the following dental anatomical structures with the permanent tooth to
which they belong. - ANSWER-a. Maxillary second premolar...Two cusps that are
approximately the same length.
B. Mandibular second premolar....."H" or "y" groove patterns int he occlusa
surface.
c. Maxillary first molar........Cusp of Carbelli.
d. Mandibular first molar....Greater mesiodistal than faciolingual width.
e. Maxillary first premolar.......Long central developmental groove.
8. MATCH the parts of the tongue with their description. - ANSWER-a.Lingual
papillae / elevated structures of specialized mucosa.
b. Sulcus terminalis / v-shaped groove on the posterior dorsal surface of the
tongue.
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c. Foramen cecum / pit like depression in the center of sulcus terminalis.
d. Lateral surface / The side of the tongue
e. Lingual tonsil / irregular mass of tonsillar tissue on the posterior dorsal surface
9. Which TWO are folds of tissue in the inferior to ventral surfaces of the tongue?
a. Labial frenum
b. Sublingual caruncle
c. Sublingual fold
d. Lingual frenum - ANSWER-c & d - The sublingual fold and lingual frenum are
both folds of tissue in the floor of the mouth below the ventral surface of the
tongue.
10. Which cranial bone is the single bone located in the most posterior portion of
the skull?
a. Mandible
b. Lambdiodal suture
c. Parietal
d. Occipital - ANSWER-d - The occipital bone is the bone on the posterior lower
portion of the skull.
11. During swallowing, the hyoid bone moves downward. During swallowing, the
larynx elevates.
a. Both statements are true
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