chapter 4 part 2 epithelium

Question 1

squamous

Answer 1

thin/ flat
-nucleus appears squished

Question 2

cuboidal

Answer 2

nucleus is in the center and round

Question 3

columnar cell

Answer 3

nucleus near the base
-if it is at the top there is something wrong

Question 4

transitional

Answer 4

mixture of cells
-bladder

Question 5

simple squamous

Answer 5

flat, delicate, lines body cavities, the heart and blood vessels
-good for blood vessels because it is easy to exchange materials and gasses
-reduce friction and secrete material

Question 6

stratified squamous

Answer 6

surface of skin, lines the muoth, esophagus, anus and vagina
-for protection

Question 7

simple cuboidal

Answer 7

thyroid gland, ducts, kidneys tubules
-for secretion and absobtion
-dont want it flat bc it is for waste exchange
-any more layers and it would be too much

Question 8

stratified cuboidal

Answer 8

ducts of sweat glands
-secretion and absorbtion
-merrecrine glands

Question 9

simple columnar

Answer 9

stomach lining, intestines, uterine tubes
-secretion, absorbtion and protection
-bc food digestion require bigger/ longer cells

Question 10

stratified columnar

Answer 10

pharynx. epiglottis, mammary glands, salivary glands
-for protection

Question 11

pseudostraatified ciliated columnar

Answer 11

-nucleus are at different levels
-nasal cavity, trachea, bronchi
-protection and secretion

Question 12

transitional

Answer 12

many layers
-cuboidal and odd shaped cells
-odd shape cells are for the ability to stretch
-bladder

Question 13

glandular

Answer 13

-epithelia mixed with gland cells
types of glands
-serous, mucous and mixed exocrine, endocrine, exocrine, simple, compound

Question 14

serous glands

Answer 14

secrete watery fluids with enzymes

Question 15

mucous glands

Answer 15

secrete glycoproteins (mucins) that absorb water to produce mucus

Question 16

mixed exocrine

Answer 16

have both serous and mucous secretions

Question 17

endocrine

Answer 17

long distance

Question 18

exocrine

Answer 18

short distance
-ducts

Question 19

simple glands

Answer 19

no branching dicts

Question 20

compound gland

Answer 20

various branching ducts

Question 21

glandular epithelia modes of secretions

Answer 21

merocrine secretions, apocrine secretions and holocrine scretions

Question 22

merocrine secretions

Answer 22

-released through exocytosis
-goblet cells of trachea and cells in axilla region for sweat production

Question 23

goblet cell

Answer 23

column shaped, in intestine/ trachea
-for nutriet digestion and mucosal absorption

Question 24

exocytosis

Answer 24

vesicle binds with plasma membrane to release contents

Question 25

apocrine secretions

Answer 25

released via the loss of cytoplasm
-cells of mammary glands for milk secretion

Question 26

holocrine

Answer 26

secretions released upon the bursting of glandular cells
-sebaceous glans

Question 27

aging

Answer 27

-less repair and maintenance
-hormonal changes affect the functioning of tissues
-epithelia gets thinner and connective tissue becomes fragile
-cardiac muscle cells and neuro tissue DO NOT regenerate

Question 28

day 6 blastocyst

Answer 28

the ball of cells becomes hollow

Question 29

trophoblast

Answer 29

blactocysts forms two layers of cells
-those 2 layers of cells will develop into four tissue of the body

Question 30

epithelial tissue will develop to form

Answer 30

-functional epithelial linings
-exocrine cells
-endocrine cells

Question 31

endoderm forms from

Answer 31

mesenchyme
-mesenchyme differentiates to from the carious connective tissue categories

Question 32

organ system development

Answer 32

-ectoderm layer and endoderm layer form
-cells migrate between the layers which forms the mesoderm
-organs begin to develop around day 28