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HOS Unit 1 > A 1 Epithelial tissue > Flashcards

A 1 Epithelial tissue Flashcards

1
Q

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

A

merocrine

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2
Q

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

A

apocrine secretion

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3
Q

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

A

for our purposes…the sebaceous gland.

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4
Q

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

A

they secrete both.

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5
Q

compound tubuloacinar gland location?

A

submandibular gland, mammary gland, and lacrimal gland.

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6
Q

branched acinar gland location?

A

cardiac part of stomach and general stomach.

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7
Q

simple branched tubular gland location?

A

pyloris of stomach and general stomach.

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8
Q

compound tubular gland location?

A

duodenum, submucosal gland.

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9
Q

compound acinar gland location?

A

pancreas

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10
Q

simple tubular location?

A

large intestine/colon

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11
Q

simple coiled tubular location?

A

skin and sweat glands

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12
Q

simple acinar gland location?

A

urethra, and paraurethral/periurethral glands.

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13
Q

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

A

epithelial cells

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14
Q

what percentage of cancers arise from epithelia?

A

over 85%

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15
Q

what is a carcinoma?

A

a tumor of epithelial origin

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16
Q

what is an adenocarcinoma?

A

a tumor derived from glandular epithelial tissue.

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17
Q

what are the four main components of the basal lamina?

A

collagen type 4
laminins
entactin
perlican

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18
Q

what is goodpastures syndrome?

A

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.

19
Q

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

A 
tight junctions (zonula occludens)
adherins junctions (zonula adherins)
desmosomes (maculea adherins)
gap junctions (intercytoplasmic junctions)
20
Q

what is the functional unit of a gap junction called?

what is it made of?

A 
Connexon = functional unit
connexins = protein units
21
Q

what attaches to the terminal web?

A

actin filaments

22
Q

T/F actin is found within the microvilli?

A

true

23
Q

where do you find stereocilia?

A

epididymis, ductus deferens, and hair cells of inner ear

24
Q

which type of cells have non-motile primary cilia?

A

almost all cells

25
Q

where do you find cilia?

A

CNS, male and female repro, and respiratory system

26
Q

what do the microtubules of cilia and flagella attach to?

A

basal body.

27
Q

what causes polycystic kidney disease?

A

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

28
Q

where do you find simple squamous epithelium?

A

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

29
Q

where do you find simple cuboidal epithelium?

A

small ducts of exocrine glands, kidney tubules

30
Q

where do you find simple columner epithelium?

A

digestive tract

31
Q

where do you find ciliated simple columner epithelium?

A

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

32
Q

where do you find non-keratinized stratified squamous epithelium?

A

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

33
Q

what is the most common type of epithelium?

A

stratified squamous epithelium

34
Q

where do you find stratified columner epithelium?

A 
Secretory ducts (large ones)
Pharynx
Anus
Conjunctiva
Epiglottis
35
Q

where do you find stratified cuboidal epithelium?

A

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

36
Q

where do you find pseudostratified columnar epithelium?

A

male urethra

parotid gland

37
Q

where do you find ciliated pseudostratified columner epithelium?

A

uterine tubes, respiratory tract, male repro tract.

38
Q

where do you find transitional epithelium?

A

bladder, upper urethra, ureters.

39
Q

what is metaplasia?

A

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

40
Q

what is the only unicellular gland in the body?

A

goblet cell

41
Q

which type of glands do not have ducts?

A

endocrine glands

42
Q

Which types of structures have a 9+2 arrangement?

What about 9+0?

A

1) cilia and flagella

2) primary cilia

43
Q

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

A

Soft palate= ciliated stratified columnar

Hard palate= keratinized stratified squamous

HOS Unit 1 (13 decks)

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