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Organ Histo > Chapter 1 > Flashcards

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

A

goblet

21
Q

cells that move mucus over the surface

A

ciliated columnar

22
Q

cells divide and change into cell types

A

basal

23
Q

extremely long microvilli, increase surface area

A

steriocilia

24
Q

finger-like projections that increase surface area for absorption

A

microvilli

25
Q

cells that have many mitochondria and function to move something over a surface, NO absorption

A

cilia

26
Q

surface layer of glycoproteins and carbohydrates that function in protection and cell recognition

A

glycocalyx

27
Q

stratified squamous provides protection from this but no protection from this

A

?. drying

28
Q

layers of keratinized stratified squamous

A

(stratum) basale, spinosum, granulosum, lucidum, corneum

29
Q

three functions of statum corneum

A

prevents water loss, provides a barrier to microbes,protects against abrasion

30
Q

where are melanocytes found

A

stratum basale

31
Q

name for genetic darker skin

A

eumelanin

32
Q

name for reddish skin

A

pheomelanin

33
Q

cells that recognize and process foreign particals (APC), found in stratum spinosum

A

langerhan

34
Q

provide touch recepters and are found in

A

merkel cells (epithelial tactile cells

35
Q

known as urinary epithelium or urothelium it functions to provide protection, to stretch, and a barrier

A

transitional epithelium

36
Q

specializations of transitional epitheliumm

A

thin fenestrated basement membrane, large rounded superficial cells, well-developed zonula occludens

37
Q

patchy skin lesions taht accelerate keratinocyte life cycle

A

psoriasis vulgaris

38
Q

patches which lack melanocytes

A

vitilligo

39
Q

cause of albinism

A

tyrosinase is missing from melanocytes

40
Q

components involved with the primary function

A

parenchyma

41
Q

components that provide mechanical/metabolic support

A

stroma

42
Q

type of secretion that involves no cell damage and examples

A

merocrine (eccrine), goblet cells, salivary

43
Q

type of secretion where cell matures and dies, associated with order, and examples

A

holocrine, sebaceous glands

44
Q

type of secretion where cell damage is minimal, secretory product is some cytoplasm, memebrane and in-tact vacuoles

A

apocrine, lactating mammary glands

45
Q

glands that produce proteins and are trapezoid shaped

A

serous glands

46
Q

glands whose cells typically stain light nucleus is often flat an peripheral

A

mucus

47
Q

glands that produce both serous and mucus with teh same characteristics as mucus glands

A

mixed

Organ Histo (6 decks)

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