EPITHELIAL TISSUES

Question 1

Simple squamos epithelium

Answer 1

single layer of flattened cells with disc shaped central nuclei and sparce cytoplasm

Question 2

Simple squamos epthelium- location

Answer 2

kidney tubules, glomeruli capsule, alveoli

Question 3

Simple squamos epithelium- function

Answer 3

allow rapid diffusion or transport of substances through membranes, secretes lubricating serous fluid

Question 4

Mesothelium/ superior

Answer 4

a simple squamos epithelium that covers the serous membranes

Question 5

Endothelium

Answer 5

a simple squamos epithelium that lines the lumens of the blood vessels, heart, and lymphatic vessels

Question 6

Bowmans capsule of kidney (glomeruler capsule)

Answer 6

part of nephron that forms a cup like sack surrounding the glomerulus.

Question 7

Lumen

Answer 7

the internal space of a hollow organ, such as a blood vessel or the esophagus or space surrounded by celis (glandacinus)

Question 8

Messentry

Answer 8

a serous membrane that binds the intestines together and suspends them from the abdominal wall, the visceral continuation of peritoneum

Question 9

Simple cuboidal epithelium

Answer 9

single layer of square or round cells in glands, pyramidal and arranged like segments of orange around central space. central nuclei, brush border, microvilli, kidney tubules ciliated in bronchioles of lung

Question 10

Simple cuboidal epithelium- location

Answer 10

liver, thyroid, mammary, salivary and other glands, kidney tubules, bronchioles

Question 11

Simple cuboidal epithelium- function

Answer 11

absorption and secretion production and movement of respiratory mucus

Question 12

Simple columnar epithelium

Answer 12

tall narrow cells oval or sausage shaped nuclei, brush border of microvilli, ciliated, goblet cells

Question 13

Transitional epithelium

Answer 13

resembles stratified squamos but surface cells rounded and bulge above 5-6 cells deep, relax 2-3 stretched

Question 14

Transitional epithelium- location

Answer 14

urinary tract, part of kidney, ureter, bladder, part of urethra, all ducts, umbilical cord

Question 15

Transitional epithelium- function

Answer 15

stretches to allow filling of urinary tract

Question 16

Ciliated pseudostratified columnar epithelium

Answer 16

not all cells reach the free surface the taller cells cover the shorter ones, looks multilayered all cells reach basement membrane, nuclei at several layers, often goblet cells, often ciliated

Question 17

Ciliated pseudostratified columnar epithelium- location

Answer 17

respiratory tract from nasal cavity to brochi, portions of male urethra

Question 18

Ciliated pseudostratified columnar epithelium- function

Answer 18

secretes and propels mucus

Question 19

Stratified squamos epithelium non keratinized

Answer 19

multiple cell layers with cells becoming increasingly flat and scaly toward surface basal cells may be cuboidal to columnar

Question 20

Stratified squamos epithelium- location

Answer 20

tongue, esophagus, anal canal, vagina

Question 21

Stratified squamos epithelium- function

Answer 21

resists abrasion and penetration by pathogen and organisms

Question 22

Simple columnar epithelium- location

Answer 22

inner lining of stomach, intestines, gallbladder, uterus, uterine tubes, kidney tubules

Question 23

Simple columnar epithelium- function

Answer 23

absorption, secretion of mucus and other products, movement of eggs and embryo in uterine tube

Question 24

Stratified squamos epithelium keratinized

Answer 24

multiple cell layers, flat/scaly/ dead without nuclei on surface

Question 25

Stratified squamos epithelium keratinized- location

Answer 25

epidermis, palms, and soles

Question 26

Stratified squamos epithelium keratinized- function

Answer 26

resists abrasion, retards water loss through skin, resists penetration by pathogenic organisms

Question 27

goblet cell

Answer 27

produce protective mucus over the epithelial surface