Connective Tissues

Question 1

What is the function of the extracellular matrix?

Answer 1

Fill the spaces between cells, binding them together with tissues

Question 2

What are the 3 components of connective tissue?

Answer 2

Ground substance
Fibres
Cells

Question 3

What components of connective tissue make up the extracellular matrix?

Answer 3

Ground substance and fibres

Question 4

What is ground substance?

Answer 4

Clear, semi-solid gel that has a water binding ability

Question 5

What is ground substance composed of?

Answer 5

Glycoproteins and complex carbohydrates

Question 6

What are 3 functions of ground substance?

Answer 6

• Provides tissue volume
• Provides biochemical support
• Supports intercellular exchange of substances

Question 7

What are the 2 fibre types?

Answer 7

Collagen and elastin

Question 8

What do fibres provide?

Answer 8

Structural support and tensile strength

Question 9

What is the strongest and most abundant fibre type?

Answer 9

Collagen

Question 10

What does collagen provide?

Answer 10

Tensile strength

Question 11

What do elastin fibres provide?

Answer 11

Stretch and recoil abilities

Question 12

What can be said about the structure of elastic fibres?

Answer 12

They are long and branched fibres

Question 13

What are the 3 types of collagen fibres and where are they found?

Answer 13

Type I : found in skin and bone

Type II : found in cartilage

Type III : found in highly cellular organs

Question 14

What are elastin fibres secreted by?

Answer 14

Fibroblasts

Question 15

What do fibroblasts secrete?

Answer 15

Elastin fibres

Question 16

Where are elastin fibres found densly?

Answer 16

Skin, bladder, liver, blood vessels

Question 17

What cell type secrete ECM:

• blasts
• cytes
• clasts

Answer 17

Blasts

Question 18

What cell type maintain ECM:

• blasts
• cytes
• clasts

Answer 18

Cytes

Question 19

What cell type breakdown ECM:

• blasts
• cytes
• clasts

Answer 19

Clasts

Question 20

What cells secrete and maintain ECM in cartilage?

Answer 20

Chondrocytes

Question 21

Where are chondrocytes found?

What is their function?

Answer 21

Found in cartilage.

They secrete and maintain ECM.

Question 22

What type of connective tissue does not contain blood vessels and lymphatics?

Answer 22

Cartilage

Question 23

What cells secrete and maintain ECM in bone?

Answer 23

Osteoblasts and Osteocytes

Question 24

What are the 3 classifications of connective tissue?

Answer 24

Connective Tissue Proper

Skeletal Connective Tissue

Fluid Connective Tissue

Question 25

What is more abundant is loose connective tissue: | Ground substance or Fibres?

Answer 25

Ground substance

Question 26

What is more abundant is dense connective tissue: | Ground substance or Fibres?

Answer 26

Fibres

Question 27

What are the 3 components of Loose connective tissue?

Answer 27

1. Areolar Tissue 2. Adipose Tissue 3. Recticular Tissue

Question 28

What are the 2 types of connective tissue proper?

Answer 28

Loose and dense connective tissue

Question 29

What are the 3 components of Dense connective tissue?

Answer 29

1. Regular 2. Irregular 3. Elastic

Question 30

What is the function of areolar tissue? | in loose connective tissue

Answer 30

Fills the gaps between tissues to bind them together

Question 31

What is the function of adipose tissue? | in loose connective tissue

Answer 31

Provides energy storage, shock absorption, and insulation

Question 32

What is the function of reticular tissue? | in loose connective tissue

Answer 32

Provides internal structure to organs

Question 33

What is the function of regular tissue? What does it consist of and where is it found? (in dense connective tissue)

Answer 33

Provides tensile strength. Consists of densely packed collagen fibres running in the same direction. Found in tendons and ligaments.

Question 34

What is the function of dense irregular tissue? What does it consist of and where is it found? (in dense connective tissue)

Answer 34

Provides protection for organs. Consists of densely packed fibres running in different directions. Found in the skin.

Question 35

What is the function of dense elastic tissue? Where is it found? (in dense connective tissue)

Answer 35

Allows recoiling after stretching occurs. Found in arteries, skin, and lungs.