Connective tissue

Question 1

Types of connective tissue?

Answer 1

• loose
• dense (regular and irregular)
• specialised

Question 2

connective tissue is composed of

Answer 2

• cells

- ECM

Question 3

what is ECM made of

Answer 3

• ground substance

- fibres

Question 4

describe ground substance

Answer 4

lubricant, barrier to enemies, pathway

-glycosaminoglycans, proteoglycans, glycoproteins, water, gases, hormones, electrolytes…

Question 5

what are the 3 fibres

Answer 5

• elastic
• collagen
• reticular

Question 6

describe collagen

Answer 6

mainly type one
strong and inelastic
-made by fibroblasts

Question 7

describe elastic fibres

Answer 7

made by fibroblast, SMCs, chondrycytes

with water, enable elasticity

Question 8

describe reticular

Answer 8

surrounds cells

Question 9

what are the 5 cells/sub tissues

Answer 9

cartilage
bone
adipocytes
fibroblasts
blood

Question 10

describe blood

Answer 10

specialised connective tissue

Question 11

describe fibroblasts

Answer 11

make collagen

lots of ER and golgi

Question 12

describe adipocytes

Answer 12

store triglyceridses

big vesicle with peripherally located nuclei

Question 13

2 ways bine can form

Answer 13

endochondrial and intramembranous ossification

Question 14

what doesnt cartilage have

Answer 14

lymph blood nerve

Question 15

cells of cartilage?

Answer 15

chondrocytes

Question 16

ecm of cartilage?

Answer 16

proteoglycan gel and collagen

Question 17

describe hyaline, elastic cartilage and fibrocartilage

Answer 17

hyaline: glass; reticular surfaces of joints; oseophagus and trachea
elastic - cross hatched elastic fibres
fibrocartilage

Question 18

ECM of bones?

Answer 18

inorganic - CaPO3; organic - collagen

Question 19

2 types of bone?

Answer 19

compact and spongy/trabecular/cancellous

Question 20

describe compact bone

Answer 20

outside bones
organised into osteons - 4 concentric lamellae; osteocytes in lacunae
fed via cytoplasmic processes, canaliculi and haversian canal

Question 21

describe spongy bone

Answer 21

with white blood cells

inside bones

Question 22

describe bone lining cells

Answer 22

when bone is broken

• diff into
• osteoblasts –> osteiod –> osteocyte
• osteocyte –> eats up/resorbs bone