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Anatony I: Exam 1 > Epithelial Tissue > Flashcards

Epithelial Tissue Flashcards

1
Q

Main functions of epithelial tissue (5)

A

Protection
Trancellular transport (Secretion & Absorption)
Sensory detection

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2
Q

Order of layers in epithelial tissue

A

(Out)Lumen
Epithelial cells
Basement membrane
(In) CT

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3
Q

3 domains in epithelial tissue

A

Apical, lateral, basal

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4
Q

Domain that borders lumen

A

Apical

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5
Q

The apical domain includes what cytoskeletal elements

A

Microvilli (absorb)
Cilia (movement)

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6
Q

What are the two types of glands present in epithelial tissue?

A

Endocrine and exocrine

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7
Q

Endocrine glands secrete _____

A

Basally

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8
Q

What type of epithelial gland has serous v. mucous

A

Exocrine glands

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9
Q

What is the function of microvilli?

A

Absorption
(Brush border)

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10
Q

What is glycocalyx?

A

A sugar coat that extends surface area
(Can be found in kidney)

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11
Q

What is the function of cilia?

A

They aid in movement
(Wild hair)

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12
Q

What is the function of the lateral domain?

A

Barrier
Communication
Adherence
(attaches to cell to cell)

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13
Q

Lateral interdigitations _______ surface area.

A

Increase

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14
Q

The junctional complex is included in which domain?

A

Lateral domain

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15
Q

What are the three parts of the junctional complex?

A

Zona occludens
Zona adherens
Macula adherentes

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16
Q

Which two parts of the junctional complex help with adhesion?

A

Zonal adherens and macula ad

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17
Q

Which part of the junctional complex is the tight junction?

A

Zonula occludens
(Protective barrier)

18
Q

Which part of the junctional complex is the intermediate junction?

A

Zonula adherens

19
Q

Which part of the junctional complex is the desmosome (“spot Jxn”)

A

Macula ad

20
Q

What is not part of the junctional complex but still aids in communication between cells, when open?

A

Connexons

21
Q

The intermediate jxn (Z.A) is made up of?

A

Actin

22
Q

Desmosome (M.A) is made up of?

A

Intermediate filaments

23
Q

Basement membrane separates the epithelial layer from what?

A

Connective tissue

24
Q

Basal domain consists of the basal lamina and ___________.

A

Reticular lamina

25
Q

How do epithelial cells attach to basal lamina?

A

Hemidesmosomes
“Spot welds”

26
Q

Which cell classification is most flat?

A

Squamous

27
Q

Cell classification that looks like squares/cubes?

A

Cuboidal

28
Q

Tall column like cell classification type?

A

Columnar

29
Q

What does stratified indicate in terms of cell classification?

A

Has more than one cell layer

30
Q

What does simple indicate in terms of cell classification?

A

One layer of cells

31
Q

Pseudostratified columnar cells look like what?

A

Look like they consist of more than one layer but do NOT

32
Q

The shape of cell closest to lumen or the outside world will be the name. T/F?

A

True

33
Q

Transitional epithelium is present only in the _______

A

Bladder
(Distensible, Rounded surface)

34
Q

Glands are created by both epithelial tissue and _______ tissue.

A

Connective

35
Q

What part of the gland is formed by epithelial tissue?

A

Parenchyma

36
Q

What part of the gland is created by connective tissue?

A

Stroma

37
Q

What are the two types of glands

A

Endocrine
Exocrine

38
Q

What is the function of an endocrine gland?

A

Secrete basally
hormones directly into blood stream

39
Q

What is the function of an exocrine gland?

A

Secrete apically
Into ducts
(Serous or mucous)

40
Q

What are goblet cells?

A

Mucous secreting cells present in both the intestines and the lungs.

Anatony I: Exam 1 (11 decks)

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