A 1 Epithelial tissue

Question 1

what is the most common mechanism of secretion; merocrine, apocrine, or holocrine?

Answer 1

merocrine

Question 2

the mammary glands and axillary sweat glands are examples of which type of secretion?

Answer 2

apocrine secretion

Question 3

what is an example of a gland that is considered holocrine?

Answer 3

for our purposes…the sebaceous gland.

Question 4

the submandibular and the sublingual glands secrete mucous, serous, or both?

Answer 4

they secrete both.

Question 5

compound tubuloacinar gland location?

Answer 5

submandibular gland, mammary gland, and lacrimal gland.

Question 6

branched acinar gland location?

Answer 6

cardiac part of stomach and general stomach.

Question 7

simple branched tubular gland location?

Answer 7

pyloris of stomach and general stomach.

Question 8

compound tubular gland location?

Answer 8

duodenum, submucosal gland.

Question 9

compound acinar gland location?

Answer 9

pancreas

Question 10

simple tubular location?

Answer 10

large intestine/colon

Question 11

simple coiled tubular location?

Answer 11

skin and sweat glands

Question 12

simple acinar gland location?

Answer 12

urethra, and paraurethral/periurethral glands.

Question 13

where is the number one place where cancer oringinates? (general)

Answer 13

epithelial cells

Question 14

what percentage of cancers arise from epithelia?

Answer 14

over 85%

Question 15

what is a carcinoma?

Answer 15

a tumor of epithelial origin

Question 16

what is an adenocarcinoma?

Answer 16

a tumor derived from glandular epithelial tissue.

Question 17

what are the four main components of the basal lamina?

Answer 17

collagen type 4
laminins
entactin
perlican

Question 18

what is goodpastures syndrome?

Answer 18

an autoimmune disease in which patients make antibodies against their type 4 collagen. results in damage to basal lamina ultimately causing renal failure and pulmonary hemorrhage.

Question 19

what is the order of cell junctions from apical to basal?

Answer 19

tight junctions (zonula occludens)
adherins junctions (zonula adherins)
desmosomes (maculea adherins)
gap junctions (intercytoplasmic junctions)

Question 20

what is the functional unit of a gap junction called?

what is it made of?

Answer 20

Connexon = functional unit
connexins = protein units

Question 21

what attaches to the terminal web?

Answer 21

actin filaments

Question 22

T/F actin is found within the microvilli?

Answer 22

true

Question 23

where do you find stereocilia?

Answer 23

epididymis, ductus deferens, and hair cells of inner ear

Question 24

which type of cells have non-motile primary cilia?

Answer 24

almost all cells

Question 25

where do you find cilia?

Answer 25

CNS, male and female repro, and respiratory system

Question 26

what do the microtubules of cilia and flagella attach to?

Answer 26

basal body.

Question 27

what causes polycystic kidney disease?

Answer 27

disruption in the non-motile primary cilia. They are used for fluid sensing.

Question 28

where do you find simple squamous epithelium?

Answer 28

bowmans capsule/loop of henle lung rete testis lining walls of blood and lymph vessels

Question 29

where do you find simple cuboidal epithelium?

Answer 29

small ducts of exocrine glands, kidney tubules

Question 30

where do you find simple columner epithelium?

Answer 30

digestive tract

Question 31

where do you find ciliated simple columner epithelium?

Answer 31

uterus and uterine tubes small bronchi of lung central canal of spinal cord

Question 32

where do you find non-keratinized stratified squamous epithelium?

Answer 32

mouth, vagina, female urethra, anus, esophagus, epiglottis, and eye

Question 33

what is the most common type of epithelium?

Answer 33

stratified squamous epithelium

Question 34

where do you find stratified columner epithelium?

Answer 34

``` Secretory ducts (large ones) Pharynx Anus Conjunctiva Epiglottis ```

Question 35

where do you find stratified cuboidal epithelium?

Answer 35

rare but found in ducts surrounding sweat glands, anorectal junction.

Question 36

where do you find pseudostratified columnar epithelium?

Answer 36

male urethra | parotid gland

Question 37

where do you find ciliated pseudostratified columner epithelium?

Answer 37

uterine tubes, respiratory tract, male repro tract.

Question 38

where do you find transitional epithelium?

Answer 38

bladder, upper urethra, ureters.

Question 39

what is metaplasia?

Answer 39

a change in a differentiated cell to another differentiated cell, both of which are mature cells. These are non cancers cells.

Question 40

what is the only unicellular gland in the body?

Answer 40

goblet cell

Question 41

which type of glands do not have ducts?

Answer 41

endocrine glands

Question 42

Which types of structures have a 9+2 arrangement? | What about 9+0?

Answer 42

1) cilia and flagella | 2) primary cilia

Question 43

What type of cells do you find on thesoft palate? Hard palate?

Answer 43

Soft palate= ciliated stratified columnar | Hard palate= keratinized stratified squamous