Laboratory 8: Epithelial Tissues Flashcards

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1
Q

What is the study of tissues called?

A

Histology.

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2
Q

What are the four major types of tissues?

A

Epithelial, Connective, Muscle, Nervous.

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3
Q

Where would you find epithelial tissue?

A

Cover’s most of the body’s external and internal surfaces and compromise most glands.

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4
Q

What is the main function of connective tissue?

A

It binds and supports parts of the body.

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5
Q

What is the function of nervous tissue?

A

Conducts impulses from one part of the body to another and helps to control and coordinate body activities.

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6
Q

What is the function of muscle tissue?

A

Makes movements possible.

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7
Q

What do the cells of epithelial tissue do when they are closest to the basement membrane?

A

Readily divide.

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8
Q

What is a result from epithelial tissue being avascular?

A

Avascular (lack of blood cells)
Because they are avascular they rely on the vascularity of underlying connective tissue for nourishment and waste removal.

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9
Q

What are the functions of epithelial tissues?

A

The functions of epithelial tissue include protection, filtration, secretion and absorption.

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10
Q

What is a longitudinal cut?

A

Lengthwise cut. —-

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11
Q

What is a cross section cut?

A

Cut across. | | | |

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12
Q

What is an oblique section cut?

A

Angular cuts. /

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13
Q

Describe simple squamous epithelium:

A

Single layer of flattened cells.

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14
Q

Describe simple cubiodal epithelium:

A

Single layer of cubed shaped cells.

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15
Q

Describe simple columnar epithelium?

A

Single layer ; elongated narrow cells. Some cilliated.

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16
Q

Describe pseudostratified columanr epithelium

A

Single layer ; elongated cells some do not reach surface. Often cilliated.

17
Q

Describe stratified squamous epithelium? ( Non keratinized)

A

Many layers, surface cells flattened and REMAIN alive.

18
Q

Describe stratified squamous epithelium? (KERATINIZED)

A

Many layers, surface cells dead and keratinized.

19
Q

Describe stratified cubodial epithelium

A

2 to 3 layers, cube shaped cells.

20
Q

Locations of stratified squamous epithelium (KERATINIZED)

A

Epidermis of skin.

21
Q

Describe stratified columnar epithelium

A

Superfical layer of elongated cells; basal layer of cube shaped cells.

22
Q

Describe transitional epithelium

A

Many layers; cube shaped and elongated cells; thinner layers when stretched.

23
Q

Describe glandular epithelium?

A

Unicellular or multicellular

24
Q

What are the functions of epithelial tissue?

A

1) protection
2) absorption
3) secretion
4) excretion
5) sensation
6) contraction

25
Q

What is sescap?

A

protection

2) absorption
3) secretion
4) excretion
5) sensation
6) contraction

26
Q

consists of several layers of cubeshaped elongated and irregular cells, allowing an expandable lining

A

Transitional Epithelium

27
Q

Commonly possesses cilia that move dust and mucus out of the respiratory airways

A

Pseudostratified columnar epithelium.

28
Q

single layer of flattened cells

A

Simple squamous epithelium

29
Q

single row of elongated cells, but some cells don’t reach the free surface

A

Pseudostratified columnar epithelium.

30
Q

forms walls of capillaries and air sacs of lungs

A

simple squamous epithelium

31
Q

provides lining of urethra of males and parts of pharynx

A

stratified columnar epithelium

32
Q

forms inner lining of urinary bladder and ureters

A

transitional epithelium

33
Q

lines kidney tubules and ducts of salivary glands

A

simple cuboidal epithelium

34
Q

forms lining of stomach and intestines

A

simple columnar epithelium

35
Q

two or three layers of cube-shaped cells

A

stratified cuboidal epithelium

36
Q

forms lining of oral cavity, anal canal, and vagina

A

stratified squamous epithelium

37
Q

Posesses microvilli in small intestine to increase surface area for better absorption

A

Simple columnar epithelium