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Bio 2325 > Histology - Epithelial Tissue > Flashcards

Histology - Epithelial Tissue Flashcards

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Biology 101 flashcards
1
Q

What is Epithelial Tissue?

A

Tissue composed of cells that line the cavities and surfaces of structrues throughout the body

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2
Q

Identify the following

A

Simple Squamous

Simple Cuboidal

Simple Columnar

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3
Q

Identify the following

A

Stratified Squamous

Stratified Cuboidal

Pseudostratified Columnar

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4
Q

Where is Simple Squamous Epithelium located?

A

Air sacs in lungs (alveoli)

Lining lumen of blood vessels (endothelium

Serous membranes of body cavities (mesothelium)

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5
Q

Identify the Following

A

Simple Squamous Epithelium

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6
Q

Identify the Following

A

Keratinized Stratified Squamous Epithelium

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7
Q

Where is Keratinezed Stratified Squamous Epithelium located?

A

Epidermis (skin)

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8
Q

Identify the Following

A

Nonkeratinezed (moist) Stratified Squamous Epithelium

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9
Q

Where is Nonkeratinized Stratified Squamous Epithelium located?

A

Lining of oral cavity

Part of: pharynx, esophagus, vagina, and anus

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10
Q

Identify the following

A

Simple Cuboidal Epithelium

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11
Q

Where is Simple Cuboidal Epithelium located?

A

Thyroid gland follicles

Kindey tubules

ducts and secretory regions of many glands

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12
Q

Identify

A

Stratified Cuboidal Epithelium

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13
Q

Where is Stratified Cuboidal Epithelium located?

A

Large ducts in most exocrine glands

Some parts of the male urethra

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14
Q

Identify

A

Ciliated Simple Columnar Epithelium

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15
Q

Where is Ciliated Simple Columnar Epithelium located?

A

Lining of uterine tubes

Larer bronchioles of respiratory tract

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16
Q

Identify

A

Simple Columnar Epithelium

17
Q

Where is (nonciliated) Simple Columnar Epithelium located?

A

Lining most of GI tract

18
Q

Identify

A

Stratified Columnar Epithelium

19
Q

Where is Stratified Columnar Epithelium located?

A

(Rare)

Large ducts of some exocrine glands

Some regions of the male urethra

20
Q

Identify

A

Pseudostratified Columnar Epithelium

21
Q

Where is Pseudostratified Columnar Epithelium located?

A

Cilitated form lines most of the respiratory tract

-nasal cavity; part of pharynx, larynx, trachea, bronchi

22
Q

Identify

A

Transitional Epithelium

23
Q

Where is Transitional Epithelium located?

A

Lining of:

Urinary bladder

Ureters

Part of urethra

24
Q

Epithelial Cells are connected to each other how?

A

Cell Junction and Extracellular Material

25
Q

Epithelial tissues generally contain ______ _____ but no _____ _______

A

Nerve endings

Blood vessels

26
Q

4 Junctions and extracellular material?

A

Tight Junctions

Adhering Junctions

Desmosomes

Gap Junctions

27
Q

What are Tight Junctions for?

A

Prevent molecules from traveling between epithelial cells

28
Q

What do Adhering Junctions do?

A

Surround the cell deep to tight junctions

29
Q

What are Desmosomes for?

A

“Buttons” between two adjacent cells that help strengthen sheets of epithelial cells

[Appear at locations of mechanical stress and are often continuous w/intermediate filaments]

30
Q

What runs between desmosomes and hemidesmosomes?

A

Intermediate Filaments

31
Q

What are Gap Junctions for?

A

Allow adjacent cells to communicate with each other

[…by the flow of ions and other small molecular messengers]

32
Q

Identify

A

1: Apical Surface l 2: Lateral Surface
3: Basal Surface l 4: Blood Vessel
5: Epithelium l 6: Basal Lamina
7: Reticular Lamina l 8: Connective Tissue
9: Basement Membrane

33
Q

Identify

A

1: Tight Junctions
2: Membrane Protein l 3: Plasma Membrane
4: Adhering Junctions l 5: Microfilament
6: Intercellular Space
7: Adjacent Plasma Membranes
8: Desmosomes l 9: Protein Filaments
10: Protein Plaque l 11: Intermediat Filaments
12: Plasma Membrane l 13: Intercellular Space
14: Gap Junctions l 15: Pore l 16: Connexon

Bio 2325 (8 decks)

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