22

 
116. Gingival massage through tooth brushing increases the circulation of blood in gingival

vessels in the

a. submucosa
b. lamina propria
c. keratinized epithelium
d. dental pulp
e. nonkeratinized epithelium

 
117. In order for bleeding of the gingiva to occur blood must pass from the lumen of blood

vessels across which of the following sequences of layers?

a. endothelium, submucosa, lamina propria, epithelium
b. tunica intima, muscularis mucosae, adventitia, stratum germinativum
c. endothelium, lamina propria, basal lamina, stratum basale
d. simple squamous epithelium, dense connective tissue, basal lamina, stratified

squamous epithelium

e. endoderm, mesoderm, ectoderm

 
118. The major inorganic constituent of enamel by weight is
 

a. collagen
b. sodium
c. phosphate
d. calcium
e. carbonate

119. All of the following characterize palatine tonsils except
 

a. stratified squamous epithelium
b. ducts of mucous glands open into crypts
c. primary crypts
d. lymphatic nodules
e. secondary crypts

 
120. Bacteria that attack the odontoblastic processes in coronal dentin move along in the

dentinal tubules toward the pulp along a

a. s-shaped with minor spiraling passageway
b. spiral passageway
c. straight with minor spiraling passageway
d. s-shaped passageway
e. straight passageway