Chapter 1 Flashcards

1
Q

General functions of epithelium

A

Absorption, secretion, provide a barrier

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2
Q

Complete basement membrane contains these two parts

A

basal lamina, reticular lamina

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3
Q

basal lamina produced by these cells

A

epithelial

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4
Q

reticular lamina is produced by these cells in the CT

A

fibroblasts

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5
Q

Functions of the basement membrane

A

limited molecular filter, limits stretch

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6
Q

connective tissue provides epithelium with these two things

A

nutrition (oxygen), defensive cells

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7
Q

tight junction that shares i intrinsic membrane proteins and provides strong attachment, also prevents passage of materials between cells

A

zonula occludens

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8
Q

known as the adhesion belt, consists of cadherins and marginal bands, provides cell structural stability

A

zonula adherens

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9
Q

Composed of desmosomes and functions to provides strong attachment

A

macula adherens

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10
Q

composed of six connexins, provides strong attachment, transports materials b/w cells (nutrients & oxygen)

A

gap junctions

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11
Q

junctional complex in order

A

zonula occludens, zonula adherens, macula adherens

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12
Q

help connect epithelial cells to the basal lamina,

A

hemidesmosomes

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13
Q

an autoimmune skin disease causing large blistering lesions that burst, but do heal

A

bullous pemphigoid

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14
Q

an autoimmune skin disease causing skin blistering that do not heal easily; excessive bleeding likely, can be fatal

A

pemphigus vulgaris

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15
Q

acute bacterial infection of small intestines, toxins disrupt proteins in zonula occludens which permits the loss of water and electrolytes

A

cholera

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16
Q

functions and location of simple squamos

A

living filter, provides a barrier, lungs

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17
Q

functions and location of simple cuboidal

A

absorption, secretion, provides a barrier, exocrine ducts, thyroid follicular cells, kidney tubules

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18
Q

functions and location of simple columbar

A

Absorption, secretion, provides a barrier, GI tract

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19
Q

ciliated pseudostratified columnar epithelium function and location

A

respiratory tract

20
Q

cells that produce mucus

21
Q

cells that move mucus over the surface

A

ciliated columnar

22
Q

cells divide and change into cell types

23
Q

extremely long microvilli, increase surface area

A

steriocilia

24
Q

finger-like projections that increase surface area for absorption

A

microvilli

25
cells that have many mitochondria and function to move something over a surface, NO absorption
cilia
26
surface layer of glycoproteins and carbohydrates that function in protection and cell recognition
glycocalyx
27
stratified squamous provides protection from this but no protection from this
?. drying
28
layers of keratinized stratified squamous
(stratum) basale, spinosum, granulosum, lucidum, corneum
29
three functions of statum corneum
prevents water loss, provides a barrier to microbes,protects against abrasion
30
where are melanocytes found
stratum basale
31
name for genetic darker skin
eumelanin
32
name for reddish skin
pheomelanin
33
cells that recognize and process foreign particals (APC), found in stratum spinosum
langerhan
34
provide touch recepters and are found in
merkel cells (epithelial tactile cells
35
known as urinary epithelium or urothelium it functions to provide protection, to stretch, and a barrier
transitional epithelium
36
specializations of transitional epitheliumm
thin fenestrated basement membrane, large rounded superficial cells, well-developed zonula occludens
37
patchy skin lesions taht accelerate keratinocyte life cycle
psoriasis vulgaris
38
patches which lack melanocytes
vitilligo
39
cause of albinism
tyrosinase is missing from melanocytes
40
components involved with the primary function
parenchyma
41
components that provide mechanical/metabolic support
stroma
42
type of secretion that involves no cell damage and examples
merocrine (eccrine), goblet cells, salivary
43
type of secretion where cell matures and dies, associated with order, and examples
holocrine, sebaceous glands
44
type of secretion where cell damage is minimal, secretory product is some cytoplasm, memebrane and in-tact vacuoles
apocrine, lactating mammary glands
45
glands that produce proteins and are trapezoid shaped
serous glands
46
glands whose cells typically stain light nucleus is often flat an peripheral
mucus
47
glands that produce both serous and mucus with teh same characteristics as mucus glands
mixed