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Dental Anatomy Exam Four Chapter 17 > Chapter 17 > Flashcards

Flashcards in Chapter 17 Deck (37)
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1

What are the four basic tissues in the body?

1. epithelium
2. connective tissue
3. muscle
4. nervous tissue

2

the wall in the cell structure that functions to keep the cellular fluid in and unnecessary foreign materials out.

Cell membrane

3

The area inside the cell membrane is a fluid medium know as what?

Cytoplasm

4

the master control of the cell, it contains (DNA) and ribonucleic acid (RNA), which control the operation of the cells.

Nucleus

5

A circumscribed dense area within the nucleus

Nucleolus

6

Where is DNA found?

Chromosomes

7

Where is RNA found?

Within the nucleolus

8

What is the function of the RNA?

to carry genetic information or instructions from the DNA to the manufacturing parts of the cell

9

Small functioning parts of the cell that allow the cell to remain alive and carry out its particular function

Organelles

10

responsible for energy production and for the rate at which the cell uses energy---commonly known as metabolism

Mitochondria

11

series of interconnecting tubules in the cell that are responsible for the manufacture of various products to be used inside or outside the cell

endoplasmic reticulum

12

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

Golgi apparatus

13

a group of cells that make up the skin and lines the inside of the cavities of the body

Epithelium

14

What are the two epithelium classifications according to the number cell layers?

1. Single-layered: Simple Epithelium
2. Multiple-layered: Stratified Epithelium

15

*Squamous (flat)
*Found in the lining of lungs, blood vessels, abdominal cavity, thoracic cavity, and lymphatic cells.
*Allow for the exchange of oxygen and carbon dioxide between the linings of the lungs and the capillaries of the lungs.

Simple Squamous Epithelium

16

*Either cuboidal or rectangular
*Only one thick layer, much thicker than squamous layer
*Lines the digestive tract from the stomach to anal region
*The main function is absorption of the break-down products within the digestive tract

SIMPLE CUBOIDAL/SIMPLE COLUMNAR EPITHELIUM

17

Where are cuboidal cells found?

the ducts of various glands, such as kidneys, salivary glands, pancreas, and others.

18

"falsely layers epithelium"

*Seen in several areas of the body, MOST PROMINENT IN THE RESPIRATORY TRACT*

*Has many goblet cells intermixed with the epithelium*

*Secretes a mucous substance and lubricates the surface of the epithelium for a number of functions*

*has cilia that traps contaminants in the air from passing through the respiratory passages*

PSEUDOSTRATIFIED COLUMNAR EPITHELIUM

19

Three different layers of the stratified squamous epithelium:

1. Stratum basale
2. Stratum spinosum
3. Stratum granulosum

20

Stratified cuboidal/columnar epithelium:

Generally only found in forming large ducts of glands.

21

Transitional epithelium

It changes in thickness and appearance as the need arises, multiple layers of cells and varying in thickness, & found in the urinary system

22

Stratified squamous epithelium

!!MOST COMMON!!
*As skin covers it the body and also makes up the mucosa of the oral cavity, pharynx, esophagus, and anal region.*

23

What are the different layers of the stratified squamous epithelium?????

1. stratum basale
2. stratum spinosum
3. stratum granulosum
4. stratum corneum

24

Three different situations that can be seen in the stratum corneum layer?

non-karatinized
para-keratinized
keratinized

25

whose products carried away by ducts leading from the gland

exocrine glands

26

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

endocrine glands

27

What glands are an example of exocrine glands?

salivary glands

28

Salivary glands producing the following types of secretions:

1. Serous secretion
2. Mucous secretion
3. Seromucous secretion

29

a thin watery substance containing most of the digestive enzymes found in saliva

Serous Secretion

30

a thicker, more viscous substance

Mucous secretion

31

produced by may of the glands that have both serous and mucous cells, in varying quantities within the same gland

Seromucous secretion

32

outer layer of the epithelial cells

ectoderm

33

inner layer of epithelial cells

entoderm

34

middle layer of epithelial cells

mesoderm

35

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

Stratum spinosum

36

Evident in thick skin and appears as two or three layers of flattened cells that contain granules or spots within their cytoplasm

Stratum granulosum

37

single layers of cuboidal cells that rests in the basement membrane. Cells divide and form more cells to maintain the supply and replace the cells that are lost

Stratum basale