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BMS 300- Unit 1 > Lecture 9- Connective Tissue > Flashcards

Lecture 9- Connective Tissue Flashcards

1
Q

What does fluid connective tissue contain?

A

Blood and lymph

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2
Q

What does supportive connective tissue contain?

A

Cartilage and bone

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3
Q

What does connective tissue proper contain?

A

Loose connective tissue
Dense connective tissue

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4
Q

What three tissue subunits are under the loose connective tissue division?

Hint: think RAA like a lion

A

Areolar
Adipose
Reticular

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5
Q

What three tissue subunits are under the dense connective tissue division?

Hint: think REI like the store

A

Regular
Irregular
Elastic

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6
Q

What is the least specialized connective tissue called?

A

Areolar connective tissue

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7
Q

What is the structure of collagen fibers?

A

-Straight and unbranched
-Rope like protein structure which is flexible and very strong
-Does not stretch

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8
Q

What protein allows elastic fibers to be stretched, but also allows fibers to return to original shape

A

Elastin

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9
Q

What is the arrangement of reticular fibers?

A

Made up of collagen but in a netlike/branching network

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10
Q

What differs between collagen fibers and reticular fibers? What is similar?

A

Both contain collagen protein

Arranged differently (collagen fibers=straight and unbranched VS reticular fibers=narrow and branched)

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11
Q

Areolar connective tissue contains _____ cells and _____

A

Mesenchymal cells and fibroblasts

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12
Q

What is the role of mesenchymal cells in areolar connective tissue?

A

Multipurpose adult stem cells (can differentiate into any type of connective tissue cell following an injury that needs repairment)

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13
Q

What is the role of fibroblasts in areolar connective tissue?

A

Secrete polysaccharides and proteins to form extracellular matrix

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14
Q

Areolar connective tissue includes immune cells which contain macrophages. When stimulated, what do macrophages release in order to recruit other immune cells to infected sites?

A

Cytokines

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15
Q

What is the role of histamine in mast cells that are found in areolar connective tissue?

A

-Causes vasodilation/increased blood flow at site of injury
-Causes allergic responses

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16
Q

What is the role of heparin in mast cells that are found in areolar connective tissue?

A

Enhances local blood flow during inflammation and reduces the development of blood clots

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17
Q

Some lymphocytes in immune cells found in areolar connective tissue can develop into ______ cells

A

Plasma

Make antibodies

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18
Q

Proteins and polysaccharides make up _______ in the ground substance which surrounds cells within areolar connective tissue

A

Proteoglycan

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19
Q

Proteoglycan consist of a _______ core and _______ branches

A

Protein core
Polysaccharide branches

20
Q

What is the function of the negatively charged proteoglycan?

A

Attracts water which produces ground substance and absorbs shock

21
Q

What is the main macromolecule that constructs the extracellular matrix?

A

Glycosaminoglycans (GAGs)

22
Q

The glycoprotein, laminin, can mainly be found in the _______ membrane

A

Basement membrane

Right above connective tissue

23
Q

_______ are unbranched carbohydrate polymers that are composed of disaccharide repeating units

A

Glycosaminoglycans

24
Q

What allows glycosaminoglycans to attract water?

A

Negatively charged group

25
Q

What type of tissue contains proteoglycans?

A

Connective tissue

26
Q

______ tissue consist mostly of fat storage cells and have little extracellular matrix

A

Adipose tissue

27
Q

True or false: all individuals have the same number of adipocytes

A

False

28
Q

_____ tissue makes up soft organs and are constructed from fibroblasts

A

Reticular

29
Q

What type of orientation allows for dense connective tissue regular to have great tensile strength

A

Parallel

30
Q

______ and ______ are made up of dense regular connective tissue

A

Ligaments and tendons

31
Q

What type of orientation allows for dense connective tissue irregular to have great tensile strength in many directions

A

Random

32
Q

What is a prime example of dense irregular connective tissue?

A

The dermis (first layer) of the skin

33
Q

Dense connective tissue _____ allows structures to regain original shape after stretching

A

Elastic

34
Q

The rib cage and nose are made up of ______ Hyaline

A

Cartilage

35
Q

What makes up a template of the embryonic skeleton before bone formation?

A

Cartilage- Hyaline

36
Q

What are the three types of cartilage found under supporting connective tissue

A

Hyaline
Fibrous
Elastic

37
Q

Which type of cartilage limits movement, resists compression, and prevents bone to bone contact?

A

Fibrous (fibroelastic)

38
Q

_____ cartilage are supportive but bend more easily

A

Elastic

39
Q

Without ____ bones would be brittle and shatter easily

A

Collagen

40
Q

Mineralization gives bones ______

A

Density

41
Q

Bones are arranged of _______

A

Osteocytes

42
Q

Fluid connective tissue includes _____ and _____

A

Blood and lymph

43
Q

What is the interstitial space?

A

Space surrounding blood vessels

44
Q

What is the role of fluid connective tissue?

A

Transport dissolved materials and protects from pathogens

45
Q

The dermis of the skin is an example of

Areolar CT
Adipose tissue
Dense regular CT
Dense irregular CT
More than one is correct

A

Dense irregular CT

46
Q

Proteoglycans refer to

-A large class of non-collagen glycoproteins
-Proteins covalently linked to polysaccharides
-Clear matrix surrounding the fibers
-Large and highly charged polysaccharides

A

Large and highly charged polysaccharides

47
Q

Chondrocytes are specialized cells that would be found in

Areolar CT
Dense CT
Fibroelastic cartilage
Bone

A

Fibroelastic cartilage

BMS 300- Unit 1 (12 decks)

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