Ch 4: Tissues

Question 1

Histology

Answer 1

Microscopic study of tissues

Question 2

Biopsy

Answer 2

Removal of tissues for diagnostic purposes

Question 3

What are the tissue classification

Answer 3

• epithelial
• connective
• muscle
• Nervous

Question 4

What is the endoderm layer

Answer 4

• inner layer
• Forms lining of digestive tract and derivatives

Question 5

What is the mesoderm layer

Answer 5

• middle layer
• forms tissue as such muscle, bone, and blood vessels

Question 6

What is the ectoderm layer

Answer 6

• outer layer
• forms skin and neuroectoderm

Question 7

Epithelial tissue

Answer 7

• protects underlying structures
• acts as barriers
• secretes and absorbs substances

Question 8

Epithelial characteristics

Answer 8

• consists almost entirely of cells
• covers body surfaces (lining) and forms glands

Question 9

Extracellular

Answer 9

Formed by secretions of epithelium and connective tissue
- guides cell migration during tissue repair

Question 10

Simple ( layer of cells)

Answer 10

One layer of cells

Question 11

Stratified (layer of cells)

Answer 11

More than one layer of cells

Question 12

Squamous shape

Answer 12

Flat, scale like

Question 13

Cuboidal shape

Answer 13

Equal in height and width

Question 14

Columnar shape

Answer 14

Taller than wide

Question 15

What happens to Transitional epithelium for urinary bladder

Answer 15

Cuboidal (empty) to squamous shape (full bladder) then back to cuboidal again

Question 16

Pseudostratisfied

Answer 16

Tissue appears to be stratified, but all all cells are in basement membrane associated with cilia and goblet cells

Question 17

Transitional epithelium

Answer 17

Cells that transition between cuboidal and squamous (urinary system)

Question 18

Function of simple

Answer 18

Allows diffusion of gases, filtration of blood, secretion & absorption

Question 19

Function of stratified

Answer 19

Protection against absorption

Question 20

Function of squamous

Answer 20

Allows diffusion or act as a filter

Question 21

Function of cuboidal and columnar

Answer 21

Secretion or absorption. Also associated with goblet cells

Question 22

Smooth structure

Answer 22

Reduce friction

Question 23

Microvilli

Answer 23

Increase surface area for absorption or secretion

Question 24

Cillia

Answer 24

Moves substances across surface

Question 25

Sterocilia

Answer 25

Elongated mocrovilli for secretion and absorption

Question 26

Folds

Answer 26

Allow organ to change shape and stretch (urinary system)

Question 27

What’s an example of Rugae

Answer 27

Folds inside the stomach

Question 28

What area is something keratinized in?

Answer 28

Only in stratisified squamous

Question 29

What epithelial structure is in the respiratory tract?

Answer 29

Goblet cells with cilliated columnar epithelium

Question 30

Where is simple squamous epi located

Answer 30

Lining of blood vessels (tubules in kidney)

Question 31

What location is simple cuboidal

Answer 31

Glands and ducts

Question 32

What location is simple columnar

Answer 32

Uterus, gallbladder, and bile ducts

Question 33

What location is stratified squamous epi

Answer 33

Keratinized—> skin
Or
Non-keratinized—> mouth, throat

Question 34

What is location for stratified cuboidal epi

Answer 34

Sweat glands

Question 35

What is the location for stratified columnar epi

Answer 35

Ducts in mammary glands

Question 36

What’s the location for ciliated pseudostratified columnar epi

Answer 36

Respiratory tract with goblet cells