Chapter 3 Tissues

Question 1

‘Four primary tissue types

Answer 1

-epithelial
-muscular
-connective
-neural

Question 2

microvilli

Answer 2

short, can move; increases surface area; line urinary & digestive tracts

Question 3

stereocilia

Answer 3

long, rigid; inner ear & male reproductive tract

Question 4

cilia

Answer 4

long, can move; move substances over apical surface; line respiratory tract

Question 5

functions of epithelial cells

Answer 5

-provides physical protection
-controls permeability
-sensory cells
-produces secretions

Question 6

give epithelium strength and stability

Answer 6

Intercellular connections

Question 7

-one layer of cells
-protected internal compartments of body

Answer 7

simple epithelium

Question 8

-two or more layers of cells
-areas of mechanical or chemical stresses

Answer 8

stratified epithelium

Question 9

squamous epithelium

Answer 9

relatively flat; “pancakes”

Question 10

cuboidal epithelium

Answer 10

shaped like cubes

Question 11

columnar epithelium

Answer 11

longer than wide; columns

Question 12

simple squamous epithelium

Answer 12

lining body cavities, thin delicate layer

Question 13

stratified squamous epithelium

Answer 13

lining of orifices

Question 14

stratified cuboidal epithelium

Answer 14

ducts of sweat and mammary glands

Question 15

stratified columnar epithelium

Answer 15

high activity areas; pharynx,, epiglottis, anus, mammary glands, salivary glands, & urethra

Question 16

transitional epithelium

Answer 16

renal pelvis, ureters, bladder; stretchy, expansion

Question 17

simple cuboidal epithelium

Answer 17

thyroid gland, renal tubules, ducts; secretion & absorption

Question 18

simple columnar epithelium

Answer 18

intestinal lining; high secretion & absorption

Question 19

pseudostratified ciliated columnar epithelium

Answer 19

nasal cavity, trachea, bronchi, male repro tract; have cilia, actually simple epithelium

Question 20

ducts to an epithelial surface; body opening or space

Answer 20

exocrine

Question 21

into ECF then to blood stream or lymph; hormones

Answer 21

endocrine

Question 22

watery fluid & enzymes

Answer 22

serous

Question 23

mucous

Answer 23

mucins + water = mucus

Question 24

eccrine secretion

Answer 24

• exocytosis
• can be continuous
• fastest secretion rate

Question 25

apocrine secretion

Answer 25

- apical portion is shed - non-continuous - production in waves

Question 26

holocrine secretion

Answer 26

- lysis of entire cell - typically oily products - slowest production rate

Question 27

matrix of loose fibers & dense fibers

Answer 27

connective tissue proper

Question 28

watery matrix of dissolved proteins

Answer 28

fluid connective tissue

Question 29

dense matrix of fibers & may have insoluble calcium salts

Answer 29

supporting connective tissue

Question 30

Fibers of connective tissue proper

Answer 30

collagen, reticular, elastic