Lab 3 Flashcards

(57 cards)

1
Q

Tissue (definition)

A

Group of cells with a similar structure and function

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2
Q

Types of tissues (4)

A

Epithelial, connective, muscle, & nerve

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3
Q

Epithelial Tissue (characteristics)

A

Cellularity, polarity, avascular, innervated, regenerates quickly.

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4
Q

Cellularity definition

A

a lot of cells

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5
Q

Polarity of Epithelial Tissue

A

Top:apical, bottom:basal

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6
Q

Avascular definition

A

No blood

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7
Q

Innervated definition

A

has nerve fibers

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8
Q

Epithelial Tissue (Classification by layers)

A

One layer=simple, multiple layers=stratified

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9
Q

How are epithelial tissues held together

A

by tight junctions and desmosomes

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10
Q

Epithelial tissue (classification by shape)

A

Flat=squamous, square=cuboloid, rectangular/cylindrical=columnar

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11
Q

Simple squamous epithelium (function)

A

allows passage of materials where protection is not important

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12
Q

Simple squamous epithelium (location)

A

air sacs of lungs, blood vessels, lining of heart

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13
Q

Simple cuboidal epithelium (function)

A

secretion and absorption

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14
Q

Simple cuboidal epithelium (location)

A

ducts and secretory portions of small glands

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15
Q

Simple columnar epithelium (function)

A

absorption; secretion of mucus

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16
Q

Simple columnar epithelium (location)

A

digestive tract, gallbladder,

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17
Q

Pseudostratified epithelium

A

some cells reach the top, some don’t (differing heights)

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18
Q

Pseudostratified epithelium (location)

A

trachea

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19
Q

Pseudostratified epithelium (function)

A

secretion of mucus

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20
Q

Transitional epithelium

A

squamous, cuboidal, and columnar

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21
Q

Stratified squamous (function)

A

protection

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22
Q

Stratified squamous (location)

A

mouth, vagina

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23
Q

Transitional epithelium (function)

24
Q

Transitional epithelium (location)

25
Gland (definition)
one or more cells that makes and secretes aqueous fluid
26
Glands Classification
by site of release (endocrine/exocrine), by number of cells (unicellular/multicellular)
27
Endocrine glands
ductless glands that produce hormones (e.g. amino acids, proteins, and steroids)
28
Exocrine glands
Secrete products onto body surfaces (skin) or into body cavities (e.g. sweat, saliva)
29
Two structures that make up exocrine glands
Duct & secretory epithelium
30
What is the most abundant tissue?
Connective tissue
31
Types of connective tissue (4)
proper, blood, bone, cartilage
32
What produces connective tissue?
mesenchyme
33
What suffix signifies "building cells"
blast
34
What suffix signifies a "mature cell"
cyte
35
What cell is derived from a fibroblast
fibrocyte
36
What cell is derived from a chondroblast
chondrocyte
37
What cell is derived from a osteoblast
osteocyte
38
What class of connective tissue derives from a fibrocyte
connective tissue proper
39
What class of connective tissue derives from a chondrocyte
cartilage
40
What class of connective tissue derives from an osteocyte
bone
41
What class of connective tissue derives from blood cells
blood
42
3 types of loose connective tissue
areolar, adipose, reticular
43
3 types of dense connective tissue
regular, irregular, elastic
44
3 types of cartilage
hyaline cartilage, fibrocartilage, elastic cartilage
45
2 types of bone
compact bone & spongy bone
46
What are the lakes of the cartilage called
lacunae
47
What are the canals of the cartilage called
canaliculi
48
What connects lacunae in the cartilage
the canaliculi
49
Epithelial membranes (3)
cutaneous, mucous, serous
50
Cutaneous membrane
skin
51
Mucous membrane
lines body cavities open to the exterior (e.g. digestive/respiratory tract)
52
Serous membrane
moist membranes found in closed ventral body cavities
53
3 types of muscle tissue
skeletal, smooth, cardiac
54
Primary germ layers (3)
ectoderm, mesoderm, endoderm
55
What germ layer do nerve tissue arise from
ectoderm
56
What germ layer do muscle and connective tissue arise from
mesoderm
57
What germ layer do epithelia arise from
all three