Connective tissue

Question 1

What is the cell spacing like in connective tissue?

Answer 1

Separated by a non-living extracellular matrix

Question 2

What does the matrix allow connective tissues to do?

Answer 2

Bear weight
Withstand tension
Tolerate abuses

Question 3

What are the functions of connective tissues?

Answer 3

Bind and support
Protect
Insulate
Transport substances
(BPIT)

Question 4

What is ground substance?

Answer 4

Material between cells that contains fibers and holds fluid for nutrient diffusion

Question 5

What are the 3 types of fibers?

Answer 5

Collagen
Elastic
Reticular

Question 6

What do collagen fibers look like

Answer 6

Wide and wavey
Stain pink

Question 7

What do elastic fibers look like?

Answer 7

Thin and flexible
Stain black

Question 8

What do reticular fibers look like?

Answer 8

Spiderwebs
Stain black

Question 9

What cells are found in the matrix of areolar CT?

Answer 9

Mast cells, macrophages and fibroblasts

Question 10

What do mast cells do?

Answer 10

Produce heparin and histamine

Question 11

What do macrophages do

Answer 11

eat bacteria and dead or dying cells

Question 12

What do fibroblasts do?

Answer 12

build fibers

Question 13

Where is areolar tissue found?

Answer 13

Between skin and muscles
Packaging organs
surrounding capillaries

Question 14

What is the function of areolar CT?

Answer 14

Wrap and cushion organs
Phagocytize bacteria
Hold and convey tissue fluid

Question 15

What is adipose tissue composed of?

Answer 15

Adipocytes: ring shaped cells filled with triglycerides
(chicken wire appearance)

Question 16

Where is adipose tissue found?

Answer 16

Around organs and joints
surround the eye
Abdomen

Question 17

What does adipose tissue do?

Answer 17

Absorbs shock
Stores energy
Protects
Insulates

Question 18

What does reticular tissue look like?

Answer 18

A network of reticular fibers with macrophages interspersed

Question 19

Where is reticular tissue found?

Answer 19

Spleen
Lymph nodes
Liver

Question 20

What does reticular tissue do in the spleen?

Answer 20

Macrophages break down dying RBCs

Question 21

What does reticular tissue do in the lymph nodes?

Answer 21

Macrophages devour bacteria, viruses and cancer cells

Question 22

What does reticular tissue do in the liver?

Answer 22

Macrophages devour bacteria

Question 23

What does dense regular CT look like?

Answer 23

White/pink parallel collagen fibers with dark coloured fibroblasts

Question 24

Where is dense regular CT found?

Answer 24

Tendons and ligaments
scar tissue
aponeuroses

Question 25

What does dense regular CT do?

Answer 25

High tensile strength in one direction Attach muscle to bone Attach bone to bone

Question 26

What does hyaline cartilage look like?

Answer 26

Chondrocytes in lacunae with a glassy extracellular matrix and bordered by the perichondrium

Question 27

What does hyaline mean?

Answer 27

glassy

Question 28

What does perichondrium mean?

Answer 28

Around cartilage

Question 29

Where is hyaline cartilage found?

Answer 29

Embryonic skeleton Ends of long bones Costal cartilage Nose Larynx Trachea

Question 30

What does hyaline cartilage do?

Answer 30

Smooth surface for joints Resist compression Flexible support

Question 31

What does elastic cartilage look like?

Answer 31

Elastic fibers in the matrix

Question 32

Where is elastic cartilage found

Answer 32

Ears Epiglottis

Question 33

What does elastic cartilage do?

Answer 33

Flexible but maintains structure

Question 34

What does fibrocartilage look like?

Answer 34

Thick collagen fibers in the matrix with chondrocytes interspersed

Question 35

Where is fibrocartilage found?

Answer 35

Intervertebral discs Pubic symphysis Knee menisci

Question 36

What does fibrocartilage do?

Answer 36

Absorb shock Smooth tough support

Question 37

What does compact bone look like?

Answer 37

Hard calcified matrix with Haversian canals containing an artery vein and nerve, canaliculi branching from the Haversian canal and osteocytes in the lacunae of the matrix

Question 38

Where is the Haversian system located?

Answer 38

Compact bone

Question 39

Where are osteocytes and osteoblasts found?

Answer 39

Spongy bone

Question 40

What does compact bone do?

Answer 40

Provide stability Allow for body movement Allow for muscle attachment

Question 41

What is blood composed of

Answer 41

Erythotrocytes (RBC) Leukocytes (WBC) Thromocytes (Platelets) Plasma (matrix)

Question 42

Where is blood found?

Answer 42

In blood vessels Heart

Question 43

What does blood do?

Answer 43

Transport gases, nutrients and waste Transport hormones and chemical messengers