DH 101 EXAM PRACTICE QUESTIONS AND
CORRECT ANSWERS!!
The oral cavity is lined with
stratified squamous epithelium
the epithelium of the oral cavity is divided into ______ types of tissue
three
what are the three types of tissue of the oral cavity
lining mucosa, masticatory mucosa, and specialized mucosa
where is the lining mucosa?
lips, cheeks, floor of mouth, ventral surface of tongue, soft palate
where is the masticatory mucosa?
the hard palate, alveolar ridges, gingiva
where is the specialized mucosa?
dorsum of tongue, which has papillae
what is the lamina propria?
connective tissue layer immediately below the epithelium, composed of the papillary layer and
deeper reticular layer
what layer is beneath the lamina propria/dermis?
submucosa or subcutaneous tissue
what does the reticular layer contain?
deeper plexus of vessels and nerves supported by the connective tissue
what is the vermilion border?
the red border of the lips
, why is the vermilion border red?
the epithelium is thin, the epithelium contains transparent eleidin, and the blood vessels are near
the surface of the papillary layer
what are Fordyce spots?
ectopic sebaceous glands at the angles of the mouth
what is a unique feature of the cheeks?
the submucosa contains fat cells and mixed glands (seromucous) located within and between the
muscle fibers
what is the surface layer of the masticatory mucosa?
stratum corneum
what three zones is the gingiva divided into?
free gingiva, attached gingiva, and the interdental zone
what is the free gingival groove?
an indistinct groove on the surface of the epithelium that separates the free gingiva from the
attached gingiva
what does the gingival sulcus do?
bounds the free gingiva and separates it from the tooth
what is the interdental papilla?
the gingiva located between the teeth and extending high on the interproximal area of the crowns
on the labial and lingual surfaces
what is the col?
a concave zone of the gingiva that follows the contour of each crown, characterized as a thin,
nonkeratinized epithelium
where is the rugae?
CORRECT ANSWERS!!
The oral cavity is lined with
stratified squamous epithelium
the epithelium of the oral cavity is divided into ______ types of tissue
three
what are the three types of tissue of the oral cavity
lining mucosa, masticatory mucosa, and specialized mucosa
where is the lining mucosa?
lips, cheeks, floor of mouth, ventral surface of tongue, soft palate
where is the masticatory mucosa?
the hard palate, alveolar ridges, gingiva
where is the specialized mucosa?
dorsum of tongue, which has papillae
what is the lamina propria?
connective tissue layer immediately below the epithelium, composed of the papillary layer and
deeper reticular layer
what layer is beneath the lamina propria/dermis?
submucosa or subcutaneous tissue
what does the reticular layer contain?
deeper plexus of vessels and nerves supported by the connective tissue
what is the vermilion border?
the red border of the lips
, why is the vermilion border red?
the epithelium is thin, the epithelium contains transparent eleidin, and the blood vessels are near
the surface of the papillary layer
what are Fordyce spots?
ectopic sebaceous glands at the angles of the mouth
what is a unique feature of the cheeks?
the submucosa contains fat cells and mixed glands (seromucous) located within and between the
muscle fibers
what is the surface layer of the masticatory mucosa?
stratum corneum
what three zones is the gingiva divided into?
free gingiva, attached gingiva, and the interdental zone
what is the free gingival groove?
an indistinct groove on the surface of the epithelium that separates the free gingiva from the
attached gingiva
what does the gingival sulcus do?
bounds the free gingiva and separates it from the tooth
what is the interdental papilla?
the gingiva located between the teeth and extending high on the interproximal area of the crowns
on the labial and lingual surfaces
what is the col?
a concave zone of the gingiva that follows the contour of each crown, characterized as a thin,
nonkeratinized epithelium
where is the rugae?
