Tissue level of organization

Question 1

Histology

Answer 1

The study of tissues

Question 2

What is Epithelial Tissue

Answer 2

Covers exposed surfaces, lines passageways, forms glands

Question 3

What is Connective tissue

Answer 3

Fills internal spaces, structural support, transports materials, stores energy

Question 4

What is Muscle tissue

Answer 4

Contraction, includes skeletal muscles, cardiac and the muscular walls of hollow organs

Question 5

What is nervous tissue

Answer 5

Carries information via electrical impulse

Question 6

What are glands

Answer 6

Structures attached or derived from epithelial cells that produce fluid secretion

Question 7

Where can you find epithelia cells

Answer 7

Cover every exposed surface of the body skin and line digestive, respiratory, reproductive and urinary

Question 8

What are the 4 essential functions of epithelial tissues

Answer 8

1. physical protection
2. control permeability
3. provide sensation
4. speacialized secretions

Question 9

Characteristics of epithelial cells

Answer 9

1. Polartiy
2. Cellularity
3. Attachement
4. Avascularity
5. Regenertation

Question 10

What 3 factors help maintain the physical integrity of epithelia

Answer 10

1. Intercellular connection
2. Attachement to the basement membrane
3. Epithelial maintenance and repair

Question 11

What will happen to epithlial cells if they are not attached

Answer 11

death

Question 12

Name the parts on the 2 part basement

Answer 12

1. basal lamina (closer to epeithelium) - filter, restricts protein movement
2. recticular lamina (deeper portion of basement membrane) -strength, filter of substances

Question 13

How can epithelium cells maintain structure over time, where are these aids located

Answer 13

stem cells, located near the basement membrane

Question 14

How can you classify epithelia

Answer 14

1. cell shape (squamous, cuboidal, columnar)
2. the number of cell layers (Simple, stratified)

Question 15

Characteristics of simple epithelium/ location/ polarity

Answer 15

One layer of cells cover the basement membrane, located inside the body due to being thin. Ex. Pleural, pericardial, peritoneal, blood vessels, secretion and absorption/ Polar

Question 16

Stratified epithelium characteristics and location

Answer 16

7 layers of cells cover the basement membrane/ located in areas that are exposed to mechianla or chemical stress/ EX, surface of the skin, mouth

Question 17

Simple Squamous Function

Answer 17

Reduces friction, preforms absorption and secretion

Question 18

Simple squamous location

Answer 18

Mesothelium, endothelium

Question 19

Stratified squamous function

Answer 19

Provides protection againsnt abrasion, and chemical attacks

Question 20

Stratified squamous location

Answer 20

Surface of skin, mouth, esophagus, anus

Question 21

Simple cuboidal function

Answer 21

Protection, secreation, absorbtion

Question 22

Simple cuboidal location

Answer 22

Gland ducts, kidney, thyroid

Question 23

Stratified cuboidal function

Answer 23

protection, secreation, absorbtion

Question 24

Stratified cuboidal location

Answer 24

lining of ducts (rare)

Question 25

Transitional epithelium function

Answer 25

Permits cycles of stretching without damage

Question 26

Transitional epithelium location

Answer 26

urinary bladder, urterus

Question 27

Simple columnar function

Answer 27

protection, secretion, absorbtion,

Question 28

Simple columnar location

Answer 28

lining of stomach, gallbladder, uterine tubes, kidney ducts

Question 29

Stratified coloumnar function

Answer 29

Protection

Question 30

Stratified columnar location

Answer 30

Pharynx, anus, mammary glands, salivary