Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Histology > Epithelium > Flashcards

Epithelium Flashcards

1
Q

three principal functions of epithelium

A
  1. Covering (Epidermis)
  2. Absorption (Intestinal lining)
  3. Secretion (Glands)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

3 shapes of epithelial cells

A
  1. Squamous (Flattened Nuclei)
  2. Cuboidal (Spherical Nuclei)
  3. Columnar (Elongated Nuclei)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The connective tissue that underlies the epithelia lining the organs of the digestive, respiratory, and urinary systems is called?

A

Lamina Propria

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

2 layers of Basement Membrane

A
  1. Basal Lamina = on the apical side
  2. Reticular Lamina

Type VII collagen connects basal & ret; Type III in Reticular

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

2 layers of the Basal Lamina

A
  1. Lamina Lucida - consists of Laminin
  2. Lamina Densa - consists of type VI collagen
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What junction forms a seal between adjacent cells? Otherwise known as?

Controlling of passage ng molecules

A

Tight Junctions or Zonula Occludens

Integral proteins = Occludins, Claudins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What do you call the sites of strong cell adhesion?

Below tight junctions; firmly anchoring a cell to its neighbors

A

Adherens Junction or Zonula Adherens

Protein = Cadherin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Provides points of strong intermediate filament coupling between adjacent cells, strengthening the tissue

A

Desmosomes or Macula Adherens

Cadherin familiy too ang proteins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What junction anchors the cytoskeleton to the basal lamina?

A

Hemidesmosome

Transmembrane protein = Integrin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Junction that focuses on cellular communication rather than adhesion or occlusion

A

Gap Junction or Nexus

Transmembrane protein = Connexin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are the 5 cell junctions? (accdg to layer + other term)

A
  1. Tight Junction (Zonula Occludins)
  2. Adherens Junction (Zonula Adherens)
  3. Desmosome (Macula Adherens)
  4. Gap Junction (Nexus)
  5. Hemidesmosome (Anchoring Junction)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What do you call the apical surface specialization that is visible as a brush or striated border projecting into the lumen?

A

Microvilli

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

This specialization of the apical surface is responsible for the increase in surface area for better absorption, what is this?

A

Microvilli

usually seen in the intestinal tract

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

The term used by doc yolo to describe rapidly dividing cells

A

Labile

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

This apical specialization is best seen on the epithelium of the male reproductive system

A

Stereocilia

In the epididymis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

This specialization is abundant on cuboidal or columnar cells but usually on columnar. Long & highly motile too and larger than microvilli containing arrays of microtubules

A

Cilia; dominant sa columnar

9+2 microtubule arrangement called axoneme

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Types of Epithelium (based on function)

A
  1. Covering or Lining epithelia
  2. Secretory or Glandular epithelia
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Identify the epithelium

Lining of blood vessels

A

Simple Squamous

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Identify the epithelium

Pericardium, Pleura, and Peritoneum

A

Simple Squamous

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Identify the epithelium

Thyroid

A

Simple Cuboidal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Identify the epithelium

Lining of the ovary

A

Simple Cuboidal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Identify the epithelium

Lining of the intestine

A

Simple Columnar

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Identify the epithelium

Gallbladder

A

Simple Columnar

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Identify the epithelium

Epidermis

A

Stratified Squamous Keratinized

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Identify the epithelium

Mouth

A

Stratified Squamous Nonkeratizined

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Identify the epithelium

Esophagus

A

Stratified Squamous Nonkeratinized

27
Q

Identify the epithelium

Larynx

A

Stratified Squamous Nonkeratinized

28
Q

Identify the epithelium

Vagina

A

Stratified Squamous Nonkeratinized

29
Q

Identify the epithelium

Anal canal

A

Stratified Squamous Nonkeratinized

30
Q

Identify the epithelium

Sweat glands

A

Stratified Cuboidal

31
Q

Identify the epithelium

Submaxillary gland

A

Stratified Cuboidal

32
Q

Identify the epithelium

Sublingual Gland

A

Stratified Cuboidal

33
Q

Identify the epithelium

Parotid Gland

A

Stratified Cuboidal

34
Q

Identify the epithelium

Developing ovarian follicles

A

Stratified Cuboidal

35
Q

Identify the epithelium

Bladder

A

Transitional

36
Q

Identify the epithelium

Renal Calyces

A

Transitional

37
Q

Identify the epithelium

Ureters

A

Transitional

38
Q

Identify the epithelium

Conjunctiva

A

Stratified Columar

39
Q

Identify the epithelium

Urethra

A

Stratified Columnar

40
Q

Identify the epithelium

Trachea

A

Pseudostratified columnar ciliated

41
Q

Identify the epithelium

Bronchi

A

Pseudostratified Columnar Ciliated

42
Q

Identify the epithelium

Nasal Cavity

A

Pseudostratified Columnar Ciliated

43
Q

Identify the epithelium

Epididymis

A

Pseudostratified Columnar Stereocilia

44
Q

What epithelium allows for the distensions?

A

Transitional

45
Q

Epithelial cells that function mainly to produce and secrete are called?

A

Glands

46
Q

Glands that have ducts and remain connected to the surface epithelium

A

Exocrine Glands

47
Q

Glands that lose their connection to their original epithelium

A

Endocrine glands

48
Q

2 types of glands

A
  1. Simple (single duct)
  2. Compound (2 or more branches)
49
Q

2 types of secretory portions of glands

A
  1. Tubular (short, long, or coiled tubes)
  2. Acinar (round & saclike)
50
Q

3 basic mechanisms for product releasing

A
  1. Merocrine - released by exocytosis
  2. Holocrine - disintegration of secretory cells themselves (usually seen on sebaceous glands and lipid-producing)
  3. Apocrine - secretions are parts of the cell itself (cytoplasm & cell membrane) (lipid droplets in the mammary gland)
51
Q

2 types of merocrine secretions

A
  1. Serous - kapag hindi nagbibiro
  2. Mucous - mucins then mucous (mucins are proteins)
52
Q

most common tumors in adults after age 45. cancer of the glands

A

Adenocarcinoma

53
Q

malignant tumors of epithelial origin are called?

A

carcinomas

54
Q

change of epithelium shape to another shape

A

metaplasia

this is reversible

55
Q

abnormal tissue growth

A

neoplasia

irreversible

56
Q

Identify type of duct

Mucous glands of colon; intestinal glands or crypts

A

Simple Tubular

57
Q

Identify type of duct

Uterus and stomach glands

A

Branched Tubular

58
Q

Identify type of duct

Sweat glands

A

Coilded tubular

59
Q

Identify type of duct

small mucous glands in the urethra

A

Acinar

60
Q

Identify type of duct

Sebaceous glands skin

A

Branched Acinar

61
Q

Identify type of duct

Brunner’s glands

A

Tubular

Compound

62
Q

Identify type of duct

Exocrine pancreas

A

Acinar

Compound

63
Q

Identify type of duct

Salivary Glands

A

Tubuloacinar

Compound

64
Q

Glycosylated proteins in mucous cells

A

Mucins

mucins muna to produce mucus

Histology (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions