Oral Histology Mcqs - Set 2

1)   Serous demilunes are seen in______________?

a. Salivary glands
b. Pancreas
c. Liver
d. Gastric glands
Answer  Explanation 

ANSWER: Salivary glands

Explanation:
No explanation is available for this question!


2)   Main function of salivary duct is_______________?

a. To convey the saliva secreted by the terminal secretory units to oral cavity
b. Antibacterial action by secreting lysoenzymes and lactoferrin
c. Synthesis of secretory glycoproteins by Kallidrein an enzyme in striated duct cells
d. None of the above
Answer  Explanation 

ANSWER: To convey the saliva secreted by the terminal secretory units to oral cavity

Explanation:
No explanation is available for this question!


3)   Which of the following is correct about serous glands_____________?

a. They are specialized for the synthesis, storage and secretion of proteins
b. They contain secretory granules in the apical Cytoplasm and the secretion of granule content occurs by exocrytosis
c. Serous cells are pyramidal in shape
d. All of the above
Answer  Explanation 

ANSWER: All of the above

Explanation:
No explanation is available for this question!


4)   Saliva is secreted by____________?

a. Major salivary glands
b. Minor salivary glands
c. Major & minor salivary glands
d. Parotid gland
Answer  Explanation 

ANSWER: Major & minor salivary glands

Explanation:
No explanation is available for this question!


5)   The duct(s) of gland(s) opening into the floor of the mouth is (are)_______________?

a. Submandibular and sublingual
b. submandibular and parotid
c. Sublingual and parotid
d. Von Ebner
Answer  Explanation 

ANSWER: Submandibular and sublingual

Explanation:
No explanation is available for this question!


6)   Among various glands, salivary gland secretion is unique in that, its secretions is unique in that, its secretion are controlled by___________?

a. Hormones
b. Nerves
c. Chemicals
d. All of the above
Answer  Explanation 

ANSWER: Nerves

Explanation:
No explanation is available for this question!


7)   The neutralization of saliva is due to______________?

a. Mucin
b. Ammonia
c. Amino acids
d. Bicarbonates
Answer  Explanation 

ANSWER: Bicarbonates

Explanation:
No explanation is available for this question!


8)   The normal pH of the saliva is about_____________?

a. 5.5
b. 9.5
c. 7.5
d. 8.5
Answer  Explanation 

ANSWER: 7.5

Explanation:
No explanation is available for this question!


9)   Mandible develops by______________?

a. Endochondral ossification only
b. Membranous ossification only
c. Both of the above
d. None of the above
Answer  Explanation 

ANSWER: Both of the above

Explanation:
No explanation is available for this question!


10)   The marrow found in the mandible is____________?

a. All fatty marrow
b. All red marrow
c. All fibrous marrow
d. A combination of fatty and fibrous marrow
Answer  Explanation 

ANSWER: A combination of fatty and fibrous marrow

Explanation:
No explanation is available for this question!


11)   Reversal lines which may be seen on the cribriform plate (alveolar bone proper) of the alveolar process indicate the cessation of____________?

a. Osteoblastic activity
b. Osteoclastic activity
c. Myeloid activity
d. Healing activity
Answer  Explanation 

ANSWER: Osteoclastic activity

Explanation:
No explanation is available for this question!


12)   Organ of chievity is seen near the______________?

a. Medial surface of the mandible
b. Naso palatine foramen
c. Mental foramen
d. Foramen caecum
Answer  Explanation 

ANSWER: Medial surface of the mandible

Explanation:
No explanation is available for this question!


13)   The maxillary sinus______________?

a. Opens in to the inferior meatus of nose
b. Has the 1st molar projecting into its floor
c. Is fully developed by the age of 8 years
d. Has good drainage in upright position
Answer  Explanation 

ANSWER: Has the 1st molar projecting into its floor

Explanation:
No explanation is available for this question!


14)   The type of epithelium lining maxillary sinus is_______________?

a. Simple columnar
b. Pseudo stratified columnar and cilliated
c. Stratified squamous
d. Simple squamous
Answer  Explanation 

ANSWER: Pseudo stratified columnar and cilliated

Explanation:
No explanation is available for this question!


15)   Functional importance of maxillary sinus is______________?

a. Lightening of skull weight and production of bactericidal lysozyme to the nasal cavity
b. Protects the brain against exposure to cold air by arresting air in sinus temporarily
c. Resonance of voice and enhancement of faciocranial resistance to mechanical shock
d. All of the above
Answer  Explanation 

ANSWER: All of the above

Explanation:
No explanation is available for this question!


16)   The articular cartilage is characterized by all of the following features except_____________?

a. It is devoid of perichondrium
b. It has a rich nerve supply
c. It is avascular
d. It lacks the capacity to regenerate
Answer  Explanation 

ANSWER: It has a rich nerve supply

Explanation:
No explanation is available for this question!


17)   The muscle which is commonly involved in myofacial pain dysfunction syndrome______________?

a. Lateral ptergoid
b. Massetor
c. Temporalis
d. Medial pterygoid
Answer  Explanation 

ANSWER: Lateral ptergoid

Explanation:
No explanation is available for this question!


18)   Fibres which continue from bone to ligament are_______________?

a. Sharpey’s fibres
b. Tome’s fibres
c. Ray’s fibres
d. All of the above
Answer  Explanation 

ANSWER: Sharpey’s fibres

Explanation:
No explanation is available for this question!


19)   Fibres which continue from bone to ligament are_____________?

a. Sharpey’s fibres
b. Tome’s fibres
c. Ray’s fibres
d. All of the above
Answer  Explanation 

ANSWER: Sharpey’s fibres

Explanation:
No explanation is available for this question!


20)   Which of the following enzymes are involved in bone formation________________?

a. Alkaline phosphatase and urease
b. Catalase and phosphorylase
c. Alkaline phosphatase and phosphorylase
d. Acid phosphatase and catalase
Answer  Explanation 

ANSWER: Alkaline phosphatase and phosphorylase

Explanation:
No explanation is available for this question!


21)   When osteoblast lay new bone from outside to inside in a osteon, the active formation area is called________________?

a. Haversion cone
b. Filling cone
c. Cutting cone
d. Howships cone
Answer  Explanation 

ANSWER: Filling cone

Explanation:
No explanation is available for this question!


22)   The intimal B cells of synovical memrbane of temporomandibular joint are_______________?

a. Fibroblast like
b. Macrophage like
c. Lmphocyte like
d. Plasma cell like
Answer  Explanation 

ANSWER: Fibroblast like

Explanation:
No explanation is available for this question!


23)   Maxillary sinus is described as a four sided pyramid containing base, apex, roof and floor. The apex of maxillary sinus extends________________?

a. Laterally into zygomatics process of maxilla
b. Medially into zygomatic process of maxilla
c. Laterally into lateral nasal wall
d. Superiorly into floor of orbit
Answer  Explanation 

ANSWER: Laterally into zygomatics process of maxilla

Explanation:
No explanation is available for this question!


24)   The process of recesses formation in maxillary sinus is most frequently seen with________________?

a. Zygomatic process
b. Frontal process
c. Alveolar process
d. Palatine process
Answer  Explanation 

ANSWER: Alveolar process

Explanation:
No explanation is available for this question!


25)   Haversion systems (osteons) are found primarily in the_________________?

a. Spongy bone
b. Periosteum
c. Alveolar bone proper
d. Endosteum
Answer  Explanation 

ANSWER: Alveolar bone proper

Explanation:
No explanation is available for this question!


26)   Alveolar bone proper is also known as: or Which of the following is seen as lamina dura in an IOPA radiograph ?

a. Lamina lucida
b. Lamina densa
c. Lamina propria
d. Lamina dura
Answer  Explanation 

ANSWER: Lamina dura

Explanation:
No explanation is available for this question!


27)   Basic metabolic unit of bone is_______________?

a. Osteon
b. Osteoblast
c. Osteocyte
d. Osteoclast
Answer  Explanation 

ANSWER: Osteon

Explanation:
No explanation is available for this question!


28)   Second arch derivatives are all except_________________?

a. Stapes
b. Malleus and incus
c. Styloid process
d. Superior part of hyoid bone
Answer  Explanation 

ANSWER: Malleus and incus

Explanation:
No explanation is available for this question!


29)   The type of bone present in the labial area of anterior teeth is_________________?

a. Cortical
b. Cancellous
c. Osteophytic
d. Exophytic
Answer  Explanation 

ANSWER: Cortical

Explanation:
No explanation is available for this question!


30)   The tooth present close to maxillary sinus is_________________?

a. 1st molar
b. 2nd premolar
c. 1st premolar
d. 2nd molar
Answer  Explanation 

ANSWER: 1st molar

Explanation:
No explanation is available for this question!