Epithelial Tissue

Question 1

Epi

Answer 1

Sit on top of something

Question 2

Where is the epithelial tissue located?

Answer 2

It sits on top of other tissues and forms outer layer.

Question 3

Epithelial tissue can also be found where? (Other then the outer layer)

Answer 3

The lining of hollow organs

Question 4

True or false?

Always free top and apex

Answer 4

True

Question 5

Cellularity?

Answer 5

Tightly packed cells

Question 6

True or false

Avascular with nerve endings

Answer 6

True

Question 7

Innervation characteristic

Answer 7

supplied with nerves

Question 8

Regenerative characteristic

Answer 8

Replaced frequently

Question 9

The cleaners, sweepers, and absorbers

Answer 9

Cilia and microvilli

Question 10

Squamos

Answer 10

Flat(squashed)

Question 11

Cuboidal

Answer 11

Cube-shaped

Question 12

Columnar

Answer 12

Column-like(oval shaped nuclei sit at bottom and is easy to ID)

Question 13

Transitional

Answer 13

Stretchy and variably shaped

Question 14

Simple(layer type)

Answer 14

Single layer all the same type

Question 15

Stratified(layer type)

Answer 15

Lots of layers; named by type of cell on outer layer

Question 16

Simple squamos

Answer 16

Structure-single layer of thin flat cells
Function-diffusion(very thin/permeable, very slick)
Location-inside of blood vessels, inside of heart, lines walls of capillaries, feeds tissue, and alveoli(air sacs of lungs)

Question 17

Simple cuboidal

Answer 17

Structure-single layer of subs-shaped cells w/ central nuclei
Function-secretion(glands) and absorption(places w/ microvilli)
Location-kidney tubes, ducts of some glands(salivary, thyroid, pancreas, liver), absorption, gland excretion

Question 18

Endocrine(gland type)

Answer 18

Makes product inside and secretes into matrix

• capillaries come inside gland and pick up the product
• product=ALWAYS HORMONE

Question 19

Exocrine(gland type)

Answer 19

Gland secretes its products outside itself using a duct

-Ex. Saliva, mucous, sweat, enzymes, oil/wax, reproductive fluids, milk

Question 20

Histology

Answer 20

Study of tissue

Question 21

Cells are anchored with…

Answer 21

Desmosomes and tight junctions

Question 22

Simple columnar

Answer 22

Structure-long cells, nuclei at bottom, microvilli & cilia
Function- absorber, cilia helps move things
Location-uterus, Fallopian tubes, stomach, intestines

Question 23

Pseudo stratified columnar

Answer 23

Structure-looks like one layer but not, nuclei not all on bottom, have cilia and goblet cells
Function-sweeps debris out of lungs goblet cells produce mucin, histamine released by WBCs
Location-upper respiratory tract(bronchi, trachea, bronchioles)

Question 24

Stratified squamous

Answer 24

Structure-flattened multiple laters of cells
Function-body’s wear and tear tissue, takes friction and exposure
Structure-outer layer of skin, lines mouth, throat, vagina, and anal canal

Question 25

Melanocytes

Answer 25

Give people their pigment, and people can varying amounts

Question 26

Keratin

Answer 26

Tough protective and waterproof protein

Question 27

Epithelial sits on what type of tissue?

Answer 27

Connective tissue

Question 28

3 types of carcinoma?

Answer 28

Basal cell:least severe and most common Squamous cell Malignant melanoma:deadly and least common

Question 29

What does the ABCD method stand for in mole observation?

Answer 29

A-asymmetry B-boarder C-color D-diameter

Question 30

1st degree burn

Answer 30

Top of epidermis burned Signs and symptoms: painful, red, no blisters Heals in 3-7 days Treatment: cool and compress, aloe Vera

Question 31

2nd degree burn

Answer 31

Epidermis and part of dermis burned S&S: painful, red, blister, pealing and dead skin days later Heals in 7-10 days depending on depth Treatment: cool compress, aloe Vera, do not break blisters

Question 32

3rd degree burn

Answer 32

Epidermis and dermis burned entirely S&S: no pain, nerve endings burned, oozing and skin slippage, whitish or grayish color Heals in months to a year depending on location and % burned Treatment: rule of nines

Question 33

Stratified cuboidal

Answer 33

Structure- 2 or 3 layers of cuboidal cells lining opening of larger glands Function- greater protection and secretor Location- mammary glands, sweat glands(larger glands)

Question 34

Stratified columnar

Answer 34

Structure- several layers of columnar cells Location- male reproductive, pharynx, distal esophagus, cardiac sphincter, can be replaced by stratified squamous, constantly being damaged by acid reflux

Question 35

Transitional

Answer 35

Designed to distend and return to normal size Lining of urinary bladder Transitions from cuboidal to squamous as bladder fills

Question 36

Cutaneous membrane

Answer 36

Functions like tarp over boat | Example: skin

Question 37

Mucous membrane

Answer 37

Lines openings to outside(digestive tract, respiratory, urinary, reproductive) Contains specialized cells that produce mucus

Question 38

Serous membrane

Answer 38

2 layered membrane with potential space between - parietal: lines walls of cavities - visceral: wraps around organs and both produce serous fluid which reduces friction between tissues and organs