Histology- epithelial Flashcards

1
Q

Epithelial tissue is the _____ tissue that
forms the ______ between our body and
the external ______.

A

lining, boundary, environment

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2
Q

Functions of Epithelial tissues include:

A

Protection, Absorption, Filtration, Secretion

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3
Q

The top surface of an epithelial tissue is called the _____ surface or ____ surface.

A

free, apical

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4
Q

The bottom surface is called the ____ ____.

A

basal surface

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5
Q

The membrane underneath the basal surface is called the ____ ____.

A

basement membrane.

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6
Q

All of these tissues are ____ (no blood vessels).

A

avascular

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7
Q

Epithelial tissues are classified by the number of ____ and the ____ of the cells.

A

layers, shape

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8
Q

simple epithelial tissues have ____ layer of cell(s)

A

one

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9
Q

stratified epithelial tissues have ____ layer of cell(s)

A

more than one

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10
Q

Simple squamous epithelium is a _____, _____ layer of cells that is ____ and _____.

A

single, flat, thin, permeable

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11
Q

What is the function and where are simple squamous epithelium?

A

function: rapid diffusion of materials

Found in blood vessels & lung tissues

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12
Q

Simple cuboidal epithelium is a ____ layer of ____-shaped cells.

A

single, cube

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13
Q

What is the function and where are simple cuboidal epithelium?

A

Function: Secretion & absorption of
substances

Found in the tissues of the kidney

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14
Q

Simple columnar epithelium is a ____ layer of ____ closely packed cells.

A

single, tall

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15
Q

simple columnar may have ____ and _____ cells which secrete ____.

A

cilia, goblet, mucus

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16
Q

What is the function and where is simple columnar found?

A

Function: Secretion of mucus for protection & absorption of substances
Found in the lining of the digestive tract

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17
Q

Epithelial tissue is the ____ that protects the body from the external _____.

A

lining, environment

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18
Q

All epithelial tissues have a ___ surface, a ___ surface, and a _____ membrane.

A

free, basal, basement

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19
Q

Simple epithelial tissues are made of ___ layer of cells
that can vary in ____.

A

one, shape

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20
Q

stratified squamous epithelium is ____ layers that provide ____ for the underlying layers.

A

thick, protection

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21
Q

stratified=

A

more than one layer

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22
Q

What is found in the epidermal layer of the skin?

A

stratified squamous

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23
Q

stratified cuboidal is ____ layer of ____ shaped cells and are ____

A

more than one, cube, rare

24
Q

What is found in salivary & mammary glands?

A

Stratified cuboidal

25
Stratified columnar is lined with ___ shaped cells and are ___
column, rare
26
What is found in your larynx and the male urethra?
Stratified columnar
27
In pseudo-stratified epithelium, cell _____ are found at different levels, so it _____ stratified, though it ____
nuclei, appears, is not
28
What is the function and where is pseudo stratified found?
Function: Secretion & Absorption Found in most of the upper respiratory tract
29
The ____ surface cells of transitional epithelium ___ in appearance based on the _____ of the tissue.
free, vary, stretching
30
transition=
changes shape with elasticity
31
What type of epithelium is found in the lining of the urinary bladder?
transitional
32
Stratified epithelial tissues have ____ layer and can ___ in cell shape.
more than one, vary
33
Pseudo-stratified epithelium _____ to have multiple layers and transitional epithelium can change its appearance as it _____.
appears, stretches
34
A ____ is made of a group of cells that ___ a fluid substance.
gland, secrete
35
glands are classified in two ways by :
complexity, how substances are secreted( endo- & exo-crine)
36
Exocrine glands secrete substances through ____
a duct
37
endocrine glands are a ____ gland that secrete ____ through the _____
ductless, hormones, blood stream
38
example of exocrine gland:
sweat glands
39
example of endocrine glands
thyroid gland
40
the types of exocrine glands are:
merocrine, holocrine, apocrine
41
what type of gland is it when cells excrete the products through exocytosis?
merocrine gland
42
mero=
part
43
merocrine gland example:
sweat glands
44
what type of gland is it when a portion of the cell pinches off with the secreted products?
apocrine glands
45
apo=
tip
46
apocrine gland example
mammary glands
47
what type of gland is it when the cells rupture and spill products into the duct?
holocrine gland
48
holocrine gland example
sebaceous (oil) glands in the skin
49
endocrine glands secrete ______ into the _____ so they can be delivered over ____ _____
hormones, blood, longer distances
50
endocrine cells are packed _____ together with ____ running through the glandular tissue.
tightly, capillaries
51
cells excrete products through _____ into the blood
exocytosis
52
examples of endocrine glands are:
thyroid, thymus, adrenal glands, and pancreas
53
glandular tissue is a specialized type of _____ tissue
epithelial
54
endocrine glands secrete ______ into the blood while exocrine glands use ____ to secrete their products.
hormones, ducts
55
exocrine glands differ in the portion of the ____ that is secreted with the product
cell