Chapter Two - Connective Tissue Flashcards Preview

OrganHisto Exam One > Chapter Two - Connective Tissue > Flashcards

Flashcards in Chapter Two - Connective Tissue Deck (109)
Loading flashcards...
0

What are the general functions of connective tissue?

Provide structural support, provide a medium for exchange, defense/protection, storage of adipose

1

What is an example of a type of connective tissue whose function is to provide a medium for exchange?

Loose connective tissue

2

What is an example of a type of connective tissue whose function is to provide defense and protection?

Loose areolar

3

Most connective tissue is derived from where?

Mesenchyme

4

Support cells in connective tissue are separated by what structure and also produce it?

Matrix

5

Cells in connective tissue adhere to what structure?

Matrix

6

What makes up the ground substance of the extracellular matrix?

Glycosaminoglycans (mucopolysaccharides)

7

What is an important characteristic about glycosaminoglycans?

Extremely hydrophilic

8

Keratan sulfate, chondroitin sulfate, heparin sulfate, and dermatan sulfate are examples of what type of GAGs?

Sulfated

9

Sulfated GAGs are covalently bonded to what substances?

Proteins

10

Hyaluronic acid is what type of GAG?

Non-Sulfated

11

Which type of GAG is a smaller molecule?

Sulfated

12

What type of GAG is a larger molecule, forms dense molecular networks, and holds a lot of water?

Non-Sulfated

13

What is the purpose of the excess water in non-sulfated GAGs?

Important for diffusion in some tissues

14

What are the positive aspects of inflammation?

Increased fluidity will aid cell movement, increased number of defensive cells

15

Where do the extra fluid and defensive cells come from during positive inflammation?

Leaky capillaries and venules

16

What is the negative aspect of inflammation?

Excessive swelling can damage blood vessels, nerves, and cells

17

What is the name for the excessive fluid remaining in the interstitial spaces during inflammation?

Edema

18

What is the most common connective tissue protein?

Collagen

19

What type of collagen accounts for 90% of the total body collagen?

Type I

20

What term refers to the ability to resist longitudinal stress?

Tensile strength

21

What connective tissue protein is known for its tensile strength but is unable to stretch?

Collagen

22

Ehlers-Danlos Syndrome is a pathology associated with improper production of which connective tissue protein?

Collagen

23

Unstable joints, hypermobility, and many dislocations are all symptoms and signs of what connective tissue condition?

Ehlers-Danlos Syndrome

24

What effect does aging have on collagen fibers?

Fiber production slows, and fibers are weaker

25

What is necessary for the proper crosslinking within the collagen I fiber?

Vitamin C

26

What happens to collagen when there is not enough vitamin C?

Weaker collagen and more rapid fiber breakdown

27

What is the cause of scurvy?

Vitamin C deficiency

28

What produces elastic fibers?

Fibroblasts and smooth muscle cells

29

What makes up elastic fibers?

Elastin and microfibrils