Connective tissue

Question 1

Connective tissue

Answer 1

-most abundant and widely distributed

Question 2

Connective tissue functions

Answer 2

-enclose/separate tissues
-interconnect other types of tissues (tendons and ligaments)
-support and movement (bones)
-storage of compounds (fat, minerals)
-cushion/insulate (fat)
-transport fluids/materials (blood)
-protection/defense (cells of immune system)

Question 3

Connective tissue unique features

Answer 3

1) all derived from mesenchyme (type of embryonic tissue)
2) different degrees of vascularity (blood flow)
3) consists of cells separated by extracellular matrix (nonliving material)

Question 4

Extracellular matrix

Answer 4

Non living material secreted by the cells of connective tissue

1) ground substances
2) protein fibers

Question 5

Ground substance

Answer 5

Gel-like mixture of starch protein and water
Proteoglycans=major component
-proteins with starchy branches
-trap large amounts of water

Question 6

Protein fibers

Answer 6

Collagen fibers (most abundant):
-strongest, flexible
-more present, the denser and firmer

Elastic fibers:
-stretch and recoil; made of elastin
-provides elasticity of skin, lungs, arteries

Reticular fibers:
-fill spaces between tissues and organs
-cradle and support organs

Question 7

4 types connective tissue

Answer 7

1) connective tissue proper
2) cartilage
3) bone
4) blood