Liz Maas
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Liz Maas
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Oral Cavity (CF16)

Oral Cavity (CF16)

Question 1 of 15

1

Keratinized cells lose their nuclei and parakeratinized cells keep their nuclei. Parakeratinized nuclei are alive and functional

Select one of the following:

  • Both statements true

  • First true, second false

  • First false, second true

  • Both false

Explanation

Question 2 of 15

1

The basal layer divides constantly because it is the site of stem cells for the epithelium. All epithelia is vascularized

Select one of the following:

  • Both true

  • First true, second false

  • First false, second true

  • Both false

Explanation

Question 3 of 15

1

Which of the following is incorrect?

Select one of the following:

  • Demosomes are found in the prickle cell layer

  • Hemidesmosomes attach epithelial cells to the basal lamina

  • Parakeratinized cells can be found in masticatory mucosa

  • The hard palate has keratinized stratified squamous epithelium

  • The soft palate is highly vascularized and keratinized

Explanation

Question 4 of 15

1

Which of the following is incorrect?

Select one of the following:

  • The filiform papillae are keratinized

  • The fungiform papillae have taste buds

  • The fungiform and filiform papillae are mostly found towards the midline of the tongue

  • The Von Ebner glands are found within circumvallate papillae

  • The circumvallate papillae is filled with saliva

Explanation

Question 5 of 15

1

Taste at the anterior 2/3rds of the tongue travel through a branch of the glossopharyngeal cranial nerve. The vagus supplies the posterior 1/3rd.

Select one of the following:

  • Both true

  • First true, second false

  • First false, second true

  • Both false

Explanation

Question 6 of 15

1

All taste goes through the solitary nucleus within pons. Then taste will be processed at ventral posterior medial nucleus before ending at the gustatory cortex.

Select one of the following:

  • Both true

  • First true, second false

  • First false, second true

  • Both false

Explanation

Question 7 of 15

1

Which of the following is incorrect

Select one of the following:

  • Coated tongue is from colonization of bacteria or fungi trapped between small nodules

  • Leukoplakia is a disorder of the immune system which causes white patches in the mouth.

  • Oral lichen planus causes lacy white streaks and patches in the mouth and tonuge

  • Thrush causes sore white plaques via yeast infection

  • Black hairy tongue is hypertrophy of filiform papillae and possible infection by chromogenic bacteria

Explanation

Question 8 of 15

1

Mucoperiosteum has mostly collagen 3 and elastin. The oral mucosa has more adipocytes in its submucosal layer.

Select one of the following:

  • Both statements true

  • First true, second false

  • First false, second true

  • Both false

Explanation

Question 9 of 15

1

The lamina propria has more penetrance into the mucoperiosteum. Mucuperiosteum also has no submucosal layer.

Select one of the following:

  • Both statements true

  • First true, second false

  • First false, second true

  • Both false

Explanation

Question 10 of 15

1

Lining mucosa have many short rete pegs, masticatory mucosa have few tall rete pegs. The projections are for anchoring to the lamina propria

Select one of the following:

  • Both true

  • First true, second false

  • First false, second true

  • Both false

Explanation

Question 11 of 15

1

Which of the following is incorrect about age-related change of the oral cavity?

Select one of the following:

  • Thinning of epithelium

  • Decrease of filiform papillae

  • Decrease of Langerhan cells

  • Decrease of fibers in lamina propria

  • Decreased wound healing

Explanation

Question 12 of 15

1

Compared to the integumentary skin, the oral mucosa displays a pale color. It has a moist, rough surface.

Select one of the following:

  • Both true

  • First true, second false

  • First false, second true

  • Both false

Explanation

Question 13 of 15

1

Which of the following is incorrect?

Select one of the following:

  • The roof of the mouth has keratinized, stratified squamous epithelium

  • The hard palate has unkeratinized stratified squamous epithelium.

  • The masticatory mucosa features keratinized and parakeratinized stratified squamous epithelium

  • The cheeks are lined with non-keratinized stratified, squamous epithelium

  • The soft palate has unkeratinized stratified squamous epithelium.

Explanation

Question 14 of 15

1

Which of the following is incorrect

Select one of the following:

  • There are tastebuds in the larynx and pharynx

  • Waldeyer's ring connects the pharyngeal, palatine, and lingual tonsils

  • Burton's lines are from lead intoxication

  • Caviar tongue is caused by varicose veins on the underside of the tongue

  • Tetracycline has been used to study the growth and development of human teeth

Explanation

Question 15 of 15

1

Which of the following is NOT a cell type found in taste buds?

Select one of the following:

  • basal cell

  • stem cell

  • supporting cell

  • receptor cell

  • secretory cell

Explanation

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