ORAL CAVITY, PHARYNX, AND ESOPHAGUS

Question 1

the first part of the
digestive tract.

Answer 1

ORAL CAVITY

Question 2

are muscular structures, formed
mostly by the orbicularis oris MUSCLES

Answer 2

LIPS

Question 3

are important in the process of
mastication, or chewing

Answer 3

LIPS AND CHEEKS

Question 4

a large, muscular organ that occupies most
of the oral cavity.

Answer 4

TONGUE

Question 5

There are __ teeth in the normal adult mouth

Answer 5

32

Question 6

each
quadrant contains __ central and __ lateral incisor

Answer 6

ONE

Question 7

___ canine (kā′nīn; dog);

Answer 7

ONE

Question 8

____ and ____ premolars
(prē-mō′lărz; molaris, a millstone);

Answer 8

FIRST AND SECOND

Question 9

and ___, _____, and _____
molars

Answer 9

first, second, and third

Question 10

The teeth of adults are called

Answer 10

PERMANENT TEETH

Question 11

tooth consists of three regions

Answer 11

CROWN
CUSPS
NECK

Question 12

Within the
center of the tooth

Answer 12

PULP CAVITY

Question 13

filled with blood
vessels, nerves, and connective tissue

Answer 13

PULP

Question 14

The pulp
cavity is surrounded by a living, cellular, calcified tissue

Answer 14

DENTIN

Question 15

The dentin of the tooth crown is
covered by an extremely hard, acellular substance

Answer 15

ENAMEL

Question 16

separates the oral
cavity from the nasal cavity and prevents food from passing into the
nasal cavity during chewing and swallowing.

Answer 16

PALATE

Question 17

palate consists of
two partS

Answer 17

SOFT AND HARD PALATE

Question 18

three major pairs of salivary (sal′i-vār-ē) glands

Answer 18

(1) the parotid glands,
(2) the submandibular glands, and
(3) the sublingual glands

Question 19

a digestive enzyme

Answer 19

SALIVARY AMYLASE

Question 20

Swallowing, or deglutition, can be divided into three phaseS

Answer 20

(1) the voluntary phase,
(2) the pharyngeal phase,
(3) the esophageal phase