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Foundation concepts > Epithelial tissue > Flashcards

Epithelial tissue Flashcards

1
Q

What is the arrangement of epithelial tissue?

A

polyhedral cell with anchoring junction- 1 sheet.

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2
Q

Is epithelial vascular?

A

no

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3
Q

True or false- epithelial cells cant regenerate.

A

False

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4
Q

True or false- epithelial cells have receptors

A

true

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5
Q

What are the types of epithelial tissue?

A

Lining and glandular

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6
Q

True or False- Lining epithelia is for secretion.

A

false- glandular is for secretion, lining is for structure.

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7
Q

What are the layers in lining epithelia?

A 
simple= 1 layer
Stratified= 2+
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8
Q

What is cell shapes in lining epithelia?

A 
Squamous= exchange, barrier and protection
Cuboidal= have microvilli - secretion + absorption 
Columnar= have cillia/microvilli - secretion + absorption
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9
Q

What are the exceptions of lining epithelium?

A

Transitional + pseudo-stratified

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10
Q

Simple squamous- where is it found?

A

air sac of lung, heart, blood vessel and lymphatic vessel

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11
Q

Simple squamous- function?

A

diffusion and lubrication

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12
Q

Simple cuboidal- where is it found?

A

ducts of small glands and kidney

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13
Q

Simple cuboidal- function?

A

secrete and absorb

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14
Q

Simple columnar- where is it found?

A

ciliated- bronchi, uterine tube and uterus

smooth- digestive tract and bladder

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15
Q

Simple columnar- function?

A

absorb + secrete mucus and enzymes

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16
Q

pseudo stratified columnar- where is it found?

A 
non-ciliated= ductus defren
cilated= trachea
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17
Q

pseudo stratified columnar- function?

A

secrete mucus

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18
Q

stratified squamous- location?

A

mouth, esophagus and vagina

19
Q

stratified squamous- function?

A

protect

20
Q

stratified cubodial- function?

A

protect

21
Q

stratified cuboidal- location?

A

glands- sweat, saliva and mammary

22
Q

stratified columnar- function?

A

secrete and protect

23
Q

stratified columnar- location?

A

male urethra- rare

24
Q

Transitional epithelium- location?

A

bladder, urethra and ureter

25
Q

Transitional epithelium- function?

A

allow urinary to stretch

26
Q

True or false- endocrine lack duct

A

true

27
Q

true or false- exocrine secrete hormones

A

false- endocrine do- exocrine secrete sweat, oil and saliva

28
Q

What are the types of exocrine secretions?

A

merocrine, apocrine, holocrine

29
Q

Which of the exocrine secretions is most damaging?

A

holocrine

30
Q

What is merocrine secretion?

A

secretory vesicle- exocytosis. (e.g pancreatic acinar cell)

31
Q

What is apocrine secretion?

A

portion is pinched off to apical region (e.g mammary gland and ears)

32
Q

What is holocrine secretion?

A

mature cell dies- cell death- apotosis (e.g skin and eyes)

33
Q

What are two types of exocrine secretion not in the blood?

A

autocrine and paracrine.

34
Q

Whats the difference of autocrine and paracrine?

A

autocrine: same tissue- affect its own cells- self signal
Paracrine: neighbor signal- travel through connective tissue (e.g histamine)

35
Q

What is categories of exocrine glands?

A

simple/ compound (branched/ unbranched)

secretory protein tubular, branched, alveoler.

36
Q

What is simple tubular examples?

A

intestine glands

37
Q

What is simple coiled tubular examples?

A

sweat gland

38
Q

What is simple branched tubular examples?

A

gastric, mucus, tongue and duodenum

39
Q

What is simple alveoler examples?

A

not found in adult

40
Q

What is simple branched alveolor examples?

A

oil glands

41
Q

What is compound tubular examples?

A

mucous glands, males reproductive system and testes

42
Q

What is compound alveolor examples?

A

mammary gland

43
Q

What is compound tubuloalveolar examples?

A

salivary, respiratory passage and pancreas

Foundation concepts (9 decks)

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