NBDHE Dental Hygienist Practice Exam | Actual Questions and
Answers Latest Updated 2026/2027 (Graded A+)
•
During swallowing, the hyoid bone moves downward. During swallowing, the larynx elevates.
- ✔✔The first statement is false, the second statement is true
•
Which nervous system produces the fight-or-flight reaction?
- ✔✔Sympathetic
•
What is mobilized in and out of the blood during bone remodeling?
- ✔✔Calcium
•
Which of the following cranial nerves pass through the foramen ovale of the sphenoid bone?
- ✔✔Trigeminal mandibular
•
The maxillary branch of the trigeminal nerve passes through the ______.
- ✔✔foramen rotundum
•
Which cranial nerve is the longest and extends to the trunk of the body
- ✔✔Vagus
•
List the following components of a muscle fiber in order of the LARGEST component to the SMALLEST
component.
i. - ✔✔Muscle
ii. Muscle fascicle
iii. Myofiber
iv. Myofibril
v. Myofilaments
•
List the following digestive system structures in order of their function during digestion of a meal.
i. - ✔✔Pharynx
ii. Esophagus
iii. Stomach
iv. Small intestine
v. Large intestine
,•
Which three of the following are lymphatic organs?
i. - ✔✔Tonsils
ii. Spleen
iii. Thymus
•
What parallels the venous blood vessels and returns filtered fluids to the bloodstream?
- ✔✔The lymphatic system
•
What type of cell-to-cell attachments are found in enamel-forming ameloblasts?
- ✔✔Desmosomes
•
What is the homogenous, translucent gel enclosed in a cell by the cell membrane?
- ✔✔Cytoplasm
•
Which type of epithelia lines the oral cavity?
- ✔✔Stratified squamous
•
Which two conditions are examples of vector-borne infections?
i. - ✔✔Lyme disease
ii. West Nile virus
•
What are the smallest and simplest infectious agents?
- ✔✔Viruses
•
An infection that affects an immunocompromised person is considered
- ✔✔Opportunistic
•
What microorganism is resistant to high temperatures and disinfectants?
- ✔✔Endospore
•
What is a common side effect of radiation and or chemotherapy that causes painful inflammation and
ulceration of mucous membranes?
- ✔✔Mucositis
•
Which disease of the bone marrow exhibits abnormally low levels of white blood cells (WBCs)?
, - ✔✔Leukopenia
•
Fever, swollen parotid gland
- ✔✔Mumps
•
Red, lacy rash
- ✔✔Fifth's Disease
•
Small, round nodule on the lip or tongue
- ✔✔Syphilis
•
If an antibody is produced by an individual and passed on to another, such as a mother to her child,
what type of immunity is this?
- ✔✔Naturally passive
•
Yogurt is not recommended for lactose intolerant patients. Lactose intolerance may be due to a
congenital absence of lactase.
- ✔✔. The first statement is false, the second statement is true
•
Carbohydrates are an energy source for the growth and repair of periodontal tissues. A firm texture of
complex carbohydrates may increase circulation in gingival tissue.
- ✔✔Both statements are true
•
What is the recommended daily allowance for digestible carbohydrates?
- ✔✔130 g/day
•
What sweetener is found in plants and can interfere with the metabolism of s. Mutans?
- ✔✔Xylitol
•
Which complex carbohydrate is made up of the plant form of glucose?
- ✔✔Starch
•
A healthy blood glucose level range is __________ mg/100mL blood.
- ✔✔100-175
•
What is the recommended fiber intake each day for an adult?
Answers Latest Updated 2026/2027 (Graded A+)
•
During swallowing, the hyoid bone moves downward. During swallowing, the larynx elevates.
- ✔✔The first statement is false, the second statement is true
•
Which nervous system produces the fight-or-flight reaction?
- ✔✔Sympathetic
•
What is mobilized in and out of the blood during bone remodeling?
- ✔✔Calcium
•
Which of the following cranial nerves pass through the foramen ovale of the sphenoid bone?
- ✔✔Trigeminal mandibular
•
The maxillary branch of the trigeminal nerve passes through the ______.
- ✔✔foramen rotundum
•
Which cranial nerve is the longest and extends to the trunk of the body
- ✔✔Vagus
•
List the following components of a muscle fiber in order of the LARGEST component to the SMALLEST
component.
i. - ✔✔Muscle
ii. Muscle fascicle
iii. Myofiber
iv. Myofibril
v. Myofilaments
•
List the following digestive system structures in order of their function during digestion of a meal.
i. - ✔✔Pharynx
ii. Esophagus
iii. Stomach
iv. Small intestine
v. Large intestine
,•
Which three of the following are lymphatic organs?
i. - ✔✔Tonsils
ii. Spleen
iii. Thymus
•
What parallels the venous blood vessels and returns filtered fluids to the bloodstream?
- ✔✔The lymphatic system
•
What type of cell-to-cell attachments are found in enamel-forming ameloblasts?
- ✔✔Desmosomes
•
What is the homogenous, translucent gel enclosed in a cell by the cell membrane?
- ✔✔Cytoplasm
•
Which type of epithelia lines the oral cavity?
- ✔✔Stratified squamous
•
Which two conditions are examples of vector-borne infections?
i. - ✔✔Lyme disease
ii. West Nile virus
•
What are the smallest and simplest infectious agents?
- ✔✔Viruses
•
An infection that affects an immunocompromised person is considered
- ✔✔Opportunistic
•
What microorganism is resistant to high temperatures and disinfectants?
- ✔✔Endospore
•
What is a common side effect of radiation and or chemotherapy that causes painful inflammation and
ulceration of mucous membranes?
- ✔✔Mucositis
•
Which disease of the bone marrow exhibits abnormally low levels of white blood cells (WBCs)?
, - ✔✔Leukopenia
•
Fever, swollen parotid gland
- ✔✔Mumps
•
Red, lacy rash
- ✔✔Fifth's Disease
•
Small, round nodule on the lip or tongue
- ✔✔Syphilis
•
If an antibody is produced by an individual and passed on to another, such as a mother to her child,
what type of immunity is this?
- ✔✔Naturally passive
•
Yogurt is not recommended for lactose intolerant patients. Lactose intolerance may be due to a
congenital absence of lactase.
- ✔✔. The first statement is false, the second statement is true
•
Carbohydrates are an energy source for the growth and repair of periodontal tissues. A firm texture of
complex carbohydrates may increase circulation in gingival tissue.
- ✔✔Both statements are true
•
What is the recommended daily allowance for digestible carbohydrates?
- ✔✔130 g/day
•
What sweetener is found in plants and can interfere with the metabolism of s. Mutans?
- ✔✔Xylitol
•
Which complex carbohydrate is made up of the plant form of glucose?
- ✔✔Starch
•
A healthy blood glucose level range is __________ mg/100mL blood.
- ✔✔100-175
•
What is the recommended fiber intake each day for an adult?
