ORAL ANATOMY - Week 9

Oral mucosa is made up of two components; epithelium and ..

Question 1Select one:

a.

lamina propria

b.

submucosa

c.

underlying bone tissue

d.

underlying muscle tissue

a.

lamina propria

Extensions of epithelium into connective tissue as they appear in a microscopic section are called 

Question 2Select one:

a.

rete ridges

b.

rugae

c.

lamina dura 

d.

lamina propria

a.

rete ridges

The oral mucosa derives from which embryonic layer?

Question 3Select one:

a.

mesoderm

b.

ectoderm

c.

mesenchyme

d.

endoderm

b.

ectoderm

Epithelium adhering to the tooth surface at the base of the gingival sulcus is called

Question 4Select one:

a.

junctional epithelium.

b.

crevicular epithelium. 

c.

gingival epithelium. 

d.

desmosome.

a.

junctional epithelium.

Some areas of oral mucosa are keratinized. Choose the correct statement regarding 

Question 5Select one:

a.

Keratinization will occur in areas of high friction in the mouth 

b.

Areas of keratinization will appear redder. 

c.

Lining mucosa is usually keratinized 

d.

The surface of the lips is an example of keratinized tissue

a.

Keratinization will occur in areas of high friction in the mouth

A term used to describe a mucous membrane combined with the periosteum of the underlying bone 

Question 6Select one:

a.

sulcular epithelium 

b.

mucoperiosteum 

c.

periodontium

d.

alveolar mucosa 

b.

mucoperiosteum

What type of epithelium is the oral mucosa?

Question 7Select one:

a.

simple squamous

b.

simple cuboidal 

c.

psuedostratified columnar 

d.

stratified squamous 

d.

stratified squamous 

The lamina propria is a term used to describe a layer of oral mucosa. 

In the skin, this same layer is described as the ..........

Question 8Select one:

a.

epidermis

b.

submucosa

c.

subcutaneous layer

d.

dermis

d.

dermis

Hyperaemia

Vasodilation and increased blood flow

Oedema or edema 

Swelling

Necrosis

Death of the tissue

Formation of reparative dentine

By response of the pulp and odontoblasts.

Ischaemia

Lack of oxygen to the tissues due to blood flow obstruction

Which of the following cells are not likely to be found in the pulp tissue?

Question 10Select one:

a.

fibroblasts

b.

white blood cells

c.

ameloblasts

d.

odontoblasts

ameloblasts

As the tooth ages, the pulp

Question 11Select one:

a.

chamber becomes wider

b.

decreases in permeability

c.

decreases in vascularity

d.

increases in innervation

e.

decreases in fibrous tissue

c.

decreases in vascularity

In the pulp chamber of multi rooted teeth, the opening of the pulp canals on the floor of the pulp chamber is called 

Question 12Select one:

a.

the canal orifice

b.

the pulp horn 

c.

the pulp foramina 

d.

radicular pulp

a.

the canal orifice

What is another name used to describe small extra pulp canals? 

Question 13Select one:

a.

Pulp canals 

b.

Canaliculi

c.

Accessory canals 

d.

Furcations

c.

Accessory canals

The most likely theory to explain dentine sensitivity is:

Question 14Select one:

a.

direct innervation theory

b.

Transduction theory

c.

Hydrodynamic theory

d.

Odontoblastic theory

c.

Hydrodynamic theory

Pulp tissue has nerve receptors for 

Question 15Select one:

a.

heat

b.

pressure

c.

pain

d.

all of the above

d.

all of the above

The vitality of a pulp is determined clinically by

Question 16Select one:

a.

application of a cold pellet on the tooth crown

b.

application of a heated gutta percha stick

c.

application of hot water over tooth exposed by rubber dam

d.

electrical pulp stimulation

e.

all of the above

e.

all of the above

Which zone of the pulp tissue is closest to the outer pulpal wall? 

Question 17Select one:

a.

Pulpal core

b.

Cell-rich zone

c.

Cell-free zone

d.

Odontoblastic layer

d.

Odontoblastic layer

Another name for vitality testing is .................

Question 18Select one:

a.

tender to percussion

b.

sensibility test

c.

cold test 

d.

electric pulp test 

e.

heat test 

b.

sensibility test

Radicular pulp is found in the ...

Question 19Select one:

a.

root canals

b.

crown

c.

pulp horns

d.

primary teeth only

e.

accessory canals only

a.

root canals

Cells which line to the dentin/pulp wall are

Question 20Select one:

a.

ameloblasts

b.

fibroblasts

c.

odontoblasts

d.

stem cells

c.

odontoblasts