Chap 5: Bone (bone structure) (exam 2)

Question 1

What are the two types of bone

Answer 1

Primary and secondary

Question 2

What type of bone in primary bone

Answer 2

immature bone (woven)

Question 3

where is primary bone found

Answer 3

fetal development and bone repair

Question 4

primary bone is composed of what?

Answer 4

many osteocytes, low minerals and more random collagen I

Question 5

Secondary bone is is what type of bone

Answer 5

mature bone (lamellar)

Question 6

There are more minerals in secondary bone meaning what

Answer 6

this bone is stronger than primary bone

Question 7

organized or random collagen I in mature bone

Answer 7

organized

Question 8

what are the general structural components of mature bone

Answer 8

Compact bone, cancellous bone, periosteum, endosteum,

Question 9

Compact bone is made up of what?

Answer 9

lamellae with no CT spaces/vascular channels

Question 10

what lamellae compose compact bone

Answer 10

outer and inner circumferential lamellae, aversion systems and interstitial lamellae

Question 11

the outer circumferential lamellae (periosteal lamellae) has newer bone under what?

Answer 11

periosteum has many sharpey’s fibers

Question 12

the inner circumferential lamellae (endosteal lamellae) is comosed of what

Answer 12

newer bone next to the cancellous bone and marrow cavity

Question 13

the haversian systems (osteons) have what components

Answer 13

osteocytes in lacunae, canaliculi (thin channels), central (haversian) canal, volkmann’s canals (vascular channel

Question 14

the Haversian canal contains what?

Answer 14

loose areolar CT, many cell types, blood and lymph vessels, sympathetic nerves, endosteum

Question 15

Cancellous bone is also known as what

Answer 15

trabecular bone (spongy)

Question 16

Cancellous bone contains what

Answer 16

Trabeculae, osteon structure, cell nourishment

Question 17

The trabeculae will align with what?

Answer 17

stress (not randome)

Question 18

The trabeculae of spongy bone is surrounded by what? i

Answer 18

irregular ct filled spaces

Question 19

What are the two parts of the periosteum

Answer 19

fibrous and osteogenic periosteum

Question 20

What is the structure of the fibrous periosteum

Answer 20

lots of collagen I, has a lot of sharpies fibers, many fibroblasts and blood vessels and nerves

Question 21

The fibrous layer of the periosteum is the closest that what will get to bony matrix?

Answer 21

sensory supply

Question 22

what is the function of the fibrous periosteum

Answer 22

distribute blood vessels and nerves and provide transition between bone and tendons and ligaments

Question 23

the osteogenic periosteum’s structure is what?

Answer 23

a single layer of cells

Question 24

what are the possible cell types in the osteogenic periosteum

Answer 24

osteogenic cells, osteoblasts, osteoclasts

Question 25

what is the function of the osteogenic periosteum

Answer 25

healing, growth and remodeling

Question 26

the endosteum is a single layer of cells that line what surface of the bone?

Answer 26

the internal surface

Question 27

what are the components of endosteum

Answer 27

osteogenic, osteoblast, osteoclasts, and bone lining cells

Question 28

Endosteum is found lining where?

Answer 28

endosteal lamellae or cancellous bone, ct sinusoids, volkmann;s and central canals