Ch 4, 3 connective tissues

Question 1

general

Answer 1

most widely and abundantly distributed

Question 2

four classes of connective tissue

Answer 2

connective tissue proper
cartilage
bone
blood

Question 3

5 major functions of connective tissue

Answer 3

1. binding/anchoring
2. supporting
3. transportation
4. protection
5. insulation

Question 4

3 general characterises

Answer 4

1. all have mesenchyme as their common tissue
2. have varying degrees of vascularity
3. cells are scattered in non living extracellular matrix

Question 5

ground substance

Answer 5

-fills space between cells
-acts as a filter, materials can diffuse through
-contains— Interstitial fluid- reservoir\
adhesion proteins (CAM) allows cells to attach to matrix
proteoglycans- form a gel like substance which stores water

Question 6

collagen fibers

Answer 6

thick, white, very strong, most abundant, has high tensile strength
resists stretching
protein=collagen

Question 7

elastic fiber

Answer 7

thin, yellow, stretchy fibers
recoil-like elastic
has branching networks
-skin, lungs, blood vessel walls

Question 8

reticular fibers

Answer 8

thin, collagen fibers, short, fine, highly branched
more flexible than collagen fibers
forms internal skeleton of some organs
-abundant where connective tissue abuts other tissue

Question 9

Blasts

Answer 9

immature, mitotically active and secretory cells
fibroblasts-connective tissue proper\
osteoblasts in bone
chondroblasts in cartilage

Question 10

cytes

Answer 10

blasts develop into mature cells which maintain the matrix but can revert back to blasts type to repair tissue

Question 11

defense cells

Answer 11

WBC, macrophages-eat things

Question 12

adipose cells

Answer 12

fat storage cells