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Physiology 1 > Lippincott: Cell & Molecular Biology Chapter 2 > Flashcards

Lippincott: Cell & Molecular Biology Chapter 2 Flashcards

1
Q

What is connective tissue composed of?

A

Connective tissue is composed of molecules that make up the extracellular matrix (ECM) with few cells

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2
Q

What is the most abundant tissue that separates and connects various tissues

A

Connective tissues

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3
Q

What is important for holding cells together and to their ECM

A

Adhesion

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4
Q

Combination of cells and ECM form what?

A

structures that make up functional tissues and organs

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5
Q

What is the top of epithelial cells called?

A

Free surface

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6
Q

W hat is the bottom of the epithelial cell attached to

A

The basement membrane

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7
Q

More about the basement membrane

A

Stratified with 3 separate zones

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8
Q

What are the 3 zones of the basement membrane

A

1) lamina lucida: clear layer 2) lamina densa: dense layer 3) reticular lamina: made up of connective tissue cells

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9
Q

What is the basal lamina composed of?

A

Lamina lucida and lamina densa (the basal lamina is being manufactured by epithelial cells)

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10
Q

What is the zone under the basement membrane

A

Lamina propria: loose connective tissue

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11
Q

What makes up the mucosal layer?

A

Epithelium + Basement membrane + lamina propria

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12
Q

Does epithelial tissue have blood vessels?

A

No, so the nutrients come from the underlying connective tissue

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13
Q

Does connective tissue have good blood supply?

A

Yes, except cartilage and adipose tissue (which has a little)

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14
Q

Connective tissue relation to the ECM

A

Loose arrangement of cells in ECM

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15
Q

Function of connective tissue

A

Support, connecting things

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16
Q

what is the extracellular matrix composed of?

A

protein fibers and ground substance

17
Q

what is ground substance composed of?

A

proteoglycan and adhesive proteins

18
Q

what are the three protein fibers?

A

elastic fibers, collagen fibers, reticular fibers

19
Q

what are the resident cells

A
  1. mesenchymal cell 2. macrophage 3. adipocyte 4. fibroblast
20
Q

what is the most abundant protein in the body?

A

collagen

21
Q

what is the structure of collagen like?

A

three alpha chains form helix , assembled into fibrils (rope like)

22
Q

what is the most prominent fibrillar type?

A

Type 1

23
Q

how many fibrillar types are there

A

Type I, II, and III (Rope Like)

24
Q

snipets of procollagen

A

collagen fibrils

25
Q

multiple collagen fibrils

A

collagen fiber

26
Q

3 Types of Collagen Fibers

A
  1. Fibrillar collagens 2. Network/Sheet-forming collagens 3.Linking/anchoring collagens
27
Q

More about network/sheet-forming collagens

A

exclusively type IV (4); mesh like, too small, makes up the lamina densa

Physiology 1 (3 decks)

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