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DH 101 > Chapter 8-1 Basic Tissue > Flashcards

Chapter 8-1 Basic Tissue Flashcards

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1
Q

Define turnover time

A

time it takes for newly divided cells to be completely replaced throughout the tissue
Time taken for cellst o divide during mitosis

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2
Q

Four types of tissue

A
  1. Epidermins
  2. Connective tissue
  3. Muscle
  4. Nerve
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3
Q

Epithelium of skin and oral mucosa are of what origin?

A

Ectodermal

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4
Q

Respiratory and digestive tract are of what origin?

A

Endodermal

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5
Q

Urinary tract is derived from…

A

Mesoderm

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6
Q

What cells make up the epithelium

A

Polyhedral cells

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7
Q

Epithelium is … (avascular/vascular)?

A

Avascular, having no blood supply

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8
Q

Describe epithelium regeneration

A

rapid cellular turnover and highly regenerative

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9
Q

Epithelial cells are joined by what type of intercellular junctions

A

Desmosomes

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10
Q

Two main categories of epithelium

A
  1. simple
  2. stratified
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11
Q

Describe simple epithelium

A

single layer of epithelial cells

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12
Q

Three classification of tissue under simple epithelium

A

Simple squamous
Simple cuboidal
Simple Columnar

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13
Q

Describe simple squamous epithelium

A

flattened platelike cells

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14
Q

Where are squamous epithelium cells found

A

Blood, lymphatic vessels, heart, serous cavities, lungs, kidneys

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15
Q

Endothelium

A

simple squamous epithelium lining of vessels and serous cavities

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16
Q

Simple cuboidal epithelium

A

cube-shaped cells that line ducts of glands (such as salivary glands)

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17
Q

What type of cells do simple cuboidal epithelium consist of

A

Rectangular cells

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18
Q

What type of cells are the inner enamel epithelium make up of

A

Simple columnar epithelium

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19
Q

Pseudostratified columnar epithelium

A

Cells’ nuclei appear at different levels

20
Q

What type of cells makes up the nasal cavity

A

pseudostratified columnar epithelium

21
Q

Stratified epithelium

A

2 or more layers of cells

22
Q

Stratified squamous epithelium

A

type of cell that make up most of epithelium in the body

23
Q

What is retes ridges/rete pegs

A

interdigitation of outer epithelium with deeper connective tissue

24
Q

Epidermis

A

superficial layer of skin

25
Q

Basal Lamina

A

superficial layer of basement membrane

26
Q

What produces the basal lamina

A

epithelium

27
Q

What is connective tissue derived from

A

Somites (mesoderm)

28
Q

What type of tissue is most abundant?

A

Connective tissue

29
Q

Connective tissue is … (renewable/nonrenewable) and vascularized/nonvascularized)

A

renewable and vascularized

30
Q

What is the most common cell type in connective tissue

A

Fibroblasts

31
Q

What is the main connective tissue fiber type

A

Collagen fibers

32
Q

What are collagen fibers composed of

A

Fibrils (made up of microfibrils)

33
Q

What are the three types of fibers

A

Collagen fiber
Elastic fibers
Reticular Fibers

34
Q

What type of fibers make up the oral cavity - soft palate

A

Elastic fibers

35
Q

Elastic fibers

A

tissue that have ability to stretch and return to original shape

36
Q

Reticular fibers

A

found in relationship to evolving embryonic tissue

37
Q

Soft connective tissue

A

tissue found in deeper layers of skin and oral mucosa
Connective tissue proper

38
Q

Firm connective tissue

A

different types of cartilage

39
Q

Rigid, hard

A

consists of bone

40
Q

Fluid

A

consists of blood with its components and lymph

41
Q

What is the connective tissue proper

A

loose and dense connective tissue found together in two adjoining layers

42
Q

Dermis

A

connective tissue proper in skin

43
Q

Hypodermis

A

subcutaneous tissue (loose connective tissue and adipose connective tissue), blood vessels, nerves

44
Q

Loose connective tissue

A

papillary layer which forms connective tissue papillae

45
Q

Dense connective tissue

A

dense layer / reticular layer

46
Q

Describe turnover of connective tissue

A

occurs through production of fibers and intercellular substance by fibroblasts
Turnover time is slower compared to epithelium

47
Q

Granulation tissue

A

immature connective tissue

DH 101 (11 decks)

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