Dental Sciences: Test 4

Question 1

What are the 4 basic tissues?

Answer 1

epithelium, connective tissue, muscle, nervous

Question 2

What is the Cell membrane?

Answer 2

the wall that keeps cellular fluid in and unnecessary foreign materials out

Question 3

Cytoplasm

Answer 3

area inside cell membrane is a fluid medium

Question 4

Mitochondria

Answer 4

responsible for energy production and for the rate at which the cell uses energy

Question 5

Endoplasmic Reticulum

Answer 5

responsible fore the manufacture of various products to be used inside or outside the cell

Question 6

Golgi apparatus

Answer 6

thin membrane to surround the material produced by the endoplasmic reticulum so it can be moved around

Question 7

How many layers are in simple epithelium?

Answer 7

Single-layer

Question 8

How many layers are in stratified epithelium?

Answer 8

Double-layer

Question 9

What is Simple cuboidal or simple columnar epithelium?

Answer 9

lines digestive tract, found in ducts of various glands (kidney, salivary glands, pancreas, and others

Question 10

Pseudostratified columnar epithelium

Answer 10

“falsely layered epithelium” contains cilia (small hairlike projections

Question 11

What is the most common type of epithelium?

Answer 11

Stratified squamous

Question 12

This makes up the mucosa of the oral cavity

Answer 12

Stratified squamous

Question 13

Exocrine glands

Answer 13

carry away by ducts leading from glands

Question 14

Endocrine glands

Answer 14

ducts are lost after the gland develops and whose products are carried away from gland in the bloodstream

Question 15

Salivary glands produce what 3 types of secretions?

Answer 15

Serous, Mucous, Seromucous

Question 16

Serous secretion

Answer 16

thin watery substance containing most of digestive enzymes found in saliva

Question 17

Mucous secretion

Answer 17

thicker more viscous substance

Question 18

Seromucous secretion

Answer 18

produced by many of the glands that have both serous and mucous

Question 19

Fibroblast

Answer 19

cell that sprouts for forms fibers (collagen fibers)

Question 20

this attaches the tooth to its socket

Answer 20

Collagen fibers

Question 21

Special connective tissue

Answer 21

Cartilage, Bone, Blood

Question 22

What is fibrocartilage and where is it found?

Answer 22

cushioning substance found in TMJ

Question 23

What is the composition of Bone Structure?

Answer 23

50% hydroxyapatite crystals with the rest collagen, ground substance, and water

Question 24

What is Sickle Cell Anemia?

Answer 24

RBC’s are c-shaped rather than round and lack sufficient hemoglobin

Question 25

What are the 2 groups of WBC's?

Answer 25

Granulocytes and Agranulocytes

Question 26

The primitive oral depression is know as?

Answer 26

Stomedeum

Question 27

If the migration of the connective tissue of the upper lip fails, it will result in a separation between medial nasal process and maxillary process known as?

Answer 27

cleft lip

Question 28

Cleft lip takes place by about the ___ embryonic week

Answer 28

6th

Question 29

If a cleft palate is going to develop, it will begin between the ___ and the ____ week

Answer 29

7th and 11th

Question 30

Two most common types of cleft lip are:

Answer 30

Unilateral and Bilateral clefts

Question 31

First signs of tooth development is seen when?

Answer 31

6th embryonic week

Question 32

continued thickening of dental lamina in 10 areas of upper arch and 10 areas of lower arch at about the ____ embryonic week?

Answer 32

8th

Question 33

The initial budding from the dental lamina at the 10 thickened areas in each arch is referred to as:

Answer 33

Bud stage

Question 34

This is the hardest structure of the body:

Answer 34

Enamel

Question 35

What are the %s of enamel?

Answer 35

96% inorganic in composition- hydroxyapatite | 4% composed of water and fibrous in organic material

Question 36

This is made up of hydroxyapatite crystals and is primary unit pf enamels structure:

Answer 36

Enamel rod

Question 37

The final job of ameloblast is to lay down a protective layer over the enamel, called the:

Answer 37

Primary enamel cuticle or Nasmyth's Membrane

Question 38

When the tooth erupts into the oral cavity, the dentin that has formed by that time is known as

Answer 38

Primary Dentin