Study Guide

Question 1

Dental Papilla forms which parts of the tooth

Answer 1

Dentin and pulp

Question 2

Stratum Basale

Answer 2

Single layer of cabodial cells that rests on the basement membrane
Cells divide and form more cells to maintain the supply and replace cells that are lost

Question 3

Stratum spinosum

Answer 3

Varies in its number of cell rows from two or three to ten or more

Question 4

Stratum Granulosm

Answer 4

Evident in thick skin

Appears as two or three layers of flattened cells that contain granules or spots within their cytoplasm

Question 5

Stratum Corneum

Answer 5

Same as the terk keratinized (horn-like)
Three situation can be seen here
Nonkeratinized
Para-keratinized
Keratinized

Question 6

The period of human development we are most interested in and why

Answer 6

3-8 weeks in embryo because features of the face begin to form

Question 7

What are the parts of a neuron

Answer 7

Cell body
Axon
Dendrite

Question 8

Mandibular arch

Answer 8

will be the maxillary process and subdivided into the mandibular process and maxillary process

Question 9

Mandibular process

Answer 9

Will form mandible

Question 10

Maxillary process

Answer 10

Will form maxillae, zygomatic bones of cheek, and palatine bones

Question 11

Enamel tufts

Answer 11

Small area of hypo calcified enamel seen at the DEJ

Only found in the histologic section of the tooth

Question 12

Enamel Lamellae

Answer 12

Cracks in the enamel

Appear as hairline cracks that extend all the way through enamel and into the dentin

Question 13

Enamel rod

Answer 13

Made of hydroxyapatite crystals and is the primary unit of enamels structure

Question 14

Enamel spindle

Answer 14

Odontoblastic process

Cellular extension of the odontoblast that becomes trapped between ameloblasts in early development

Question 15

Cleft lip forms when

Answer 15

Migration fails, resulting in a separation between the medial nasal process and maxillary process (sixth embryonic week)

Question 16

Dead tracts

Answer 16

Dental tubules that are empty

Question 17

Sclerotic dentin

Answer 17

Dentinal tubules filled with dentin material

Question 18

Where are goblet cells located

Answer 18

Respiratory tract

Question 19

Goblet cells

Answer 19

Secretes mucous substance and lubricates the surface of the epithelium

Question 20

Granulocytes

Answer 20

Neutrophils, eosinophils, and basophils

Question 21

Types of simple epithelium

Answer 21

Simple squamous
Simple cubodial or simple columnar
Pseudostratified columnar

Question 22

What is the fluid part of blood?

Answer 22

Plasma

Question 23

Hydroxyapatite percentage in bone

Answer 23

50%

Question 24

Hydroxyapatite percentage in enamel

Answer 24

96%

Question 25

Hydroxyapatite percentage in

Answer 25

70%

Question 26

Cells that form the inner lining of blood vessels derive from what kind of cells

Answer 26

Simple squamous

Question 27

What are the depressions on each side of the nasal spine?

Answer 27

Nasal pits

Question 28

Retzius

Answer 28

Brownish lines that develop in the enamel (like rings of a tree)

Question 29

Efferent

Answer 29

(motor) messages leaving the brain to parts of the body and cause action to take place

Question 30

Red blood cells

Answer 30

4.5 to 5 million per cubic mm Bi-concave discs Contain hemoglobin

Question 31

Hemoglobin

Answer 31

Iron-containing element | Allow the RBC's to carry oxygen

Question 32

Pulp stone

Answer 32

Calcifications found in the pulp

Question 33

Sacromere

Answer 33

Functional unit of skeletal muscle

Question 34

WBC's in a cubic millimeter

Answer 34

8,000 to 11,000

Question 35

Smooth muscle

Answer 35

nonstriated involuntary

Question 36

Skeletal muscle

Answer 36

striated voluntary

Question 37

Cardiac muscle

Answer 37

striated involuntary

Question 38

Epiphysis

Answer 38

two end sections in bone

Question 39

Diaphysis

Answer 39

Center section in bone

Question 40

Dental sac

Answer 40

Forms cementum, PDL, and some alveolar bone

Question 41

Enamel rod

Answer 41

Primary unit for enamels structure

Question 42

Muscles of mastication

Answer 42

V cranial nerve

Question 43

Muscles of facial expression

Answer 43

VII cranial nerve

Question 44

Stylopharyngeus

Answer 44

IX cranial nerve

Question 45

Muscles of larynx, pharynx, and soft palate

Answer 45

X and XI cranial nerves

Question 46

Function of the four layers of the enamel organ

Answer 46

Attaching Enamel formation Protection Nourishment