Oral Histology – MCQs

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1.Which of the following statements about salivary glands and their ducts is accurate?

Parotid gland is connected to Stensen’s duct and produces purely serous saliva.Submandibular gland drains through Wharton’s duct and secretes a mixed but mainly serous fluid.Sublingual gland empties via Bartholin’s duct and secretes a mixed secretion that is mostly mucous.All of the above statements are true.None of the above are correct.

2.Which statement below is accurate regarding the mandible and its structures?

The mandible's roof consists of a thin layer of compact bone.The articular tubercle is made up of cancellous bone covered by a thin compact bone layer.The condyle houses red bone marrow within it.All of the above statements are true.None of the above.

3.At what stage of development do the future components of the temporomandibular joint (TMJ) begin to form?

4.Which statement below is accurate?

The cutting cone, also known as the resorption tunnel, represents the resorptive region within alveolar bone.Levels of cyclic adenosine monophosphate (cAMP) rise on the pressure side of bone, leading to bone breakdown.During fracture repair, immature or embryonic bone has reduced mineral content and contains numerous large osteocytes.All the statements mentioned above are correct.

5.Which of the following statements is accurate?

Every bone in the upper facial region forms through intramembranous ossification.The incus and malleus originate from Meckel's cartilage.The stapes, the third auditory ossicle, arises from the second branchial arch.All the above statements are correct.None of the above.

6.Which of the following statements is incorrect?

In pituitary gigantism, all paranasal sinuses increase in size beyond normal limits.Chronic infections can cause pain that resembles dental neuralgia.Malignant tumors of the maxillary sinus often present symptoms affecting the upper jaw teeth.None of the above statements are incorrect.

7.Which statement below is accurate regarding the maxillary sinus?

The maxillary sinus opens to the outside via the middle meatus and nasal vestibule.The maxillary sinus has a shape resembling a four-sided pyramid.Typically, the primary opening (ostium) is located in the posterior third of the hiatus semilunaris.All of the above statements are correct.

8.Which of the following statements is incorrect?

Type I spongiosa structure is characteristic of the mandible.Type II spongiosa is typically found in the maxilla.The condylar process and angle of the mandible, along with the maxillary tuberosity, contain hematopoietic marrow.Bundle bone has a lower calcium salt content compared to other bone tissues.

9.Which statement below is incorrect regarding the alveolar bone?

The alveolar bone proper encases the tooth root and serves as the attachment site for periodontal ligament fibers.Supporting alveolar bone envelops the alveolar bone proper and provides structural support to the tooth socket.Cortical plates are thinner in the maxilla compared to the mandible.The cortical bone is thickest in the front region of the jaw.

10.Which statement below is accurate regarding the dental pulp?

The pulpal tissue exhibits the greatest pressure compared to other body tissues.Most nerves entering the pulp are unmyelinated and belong to the sympathetic nervous system.The Plexus of Rashkow, also called the parietal nerve layer, consists of a network of peripheral axons situated next to the cell-rich zone.All of the above statements are correct.

11.Which statement below is inaccurate regarding denticles?

Free denticles are completely enclosed by pulp tissue without any dentin.Embedded denticles are fully surrounded by dentin material.Attached denticles are partially fused with the dentin structure.False denticles possess numerous dentinal tubules within them.

12.Which of the following statements is accurate?

Fibronectin facilitates the binding of fibroblasts to collagen fibers.Cementicles are present within the periodontal ligament of elderly individuals.Large nerve fibers are myelinated and play a role in the perception of touch.Small nerve fibers, which may be myelinated or unmyelinated, are involved in sensing pain.All of the above statements are correct.

13.Where can myoepithelial cells be found within the salivary gland structures?

14.Which staining technique is commonly used to identify mucin in mucous cells?

15.Which substance listed below is absent from human saliva?

LysozymePhosphate ionsBicarbonate ionsTrypsin enzyme

16.What type of glands are the Blandin and Nuhn glands?

Glands situated at the back of the tongueAnterior lingual glands found close to the tip of the tongueGlands located in the glossopalatine regionGlands associated with the palateSubmandibular glands

17.Which of the following glands are exclusively mucous-secreting?

18.What type of glands are the von Ebner's glands?

Glands located at the tip of the tongueMucous glands found on the posterior part of the tongueSerous glands situated on the posterior tongueGlosso-palatine glands

19.Which of the following statements about myoepithelial cells is accurate?

They are commonly referred to as basket cells.Their structure resembles smooth muscle and includes actin and myosin filaments.They facilitate secretion release through contraction.All of the above statements are true.

20.Which structure is referred to as Bartholin's duct?

The duct of the parotid glandThe duct of the submandibular glandThe duct of the sublingual glandThe tear duct