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

Organ histology (Exam 2) > Chap 5: Bone (bone structure) (exam 2) > Flashcards

Flashcards in Chap 5: Bone (bone structure) (exam 2) Deck (28)
Loading flashcards...
1
Q

What are the two types of bone

A

Primary and secondary

2
Q

What type of bone in primary bone

A

immature bone (woven)

3
Q

where is primary bone found

A

fetal development and bone repair

4
Q

primary bone is composed of what?

A

many osteocytes, low minerals and more random collagen I

5
Q

Secondary bone is is what type of bone

A

mature bone (lamellar)

6
Q

There are more minerals in secondary bone meaning what

A

this bone is stronger than primary bone

7
Q

organized or random collagen I in mature bone

A

organized

8
Q

what are the general structural components of mature bone

A

Compact bone, cancellous bone, periosteum, endosteum,

9
Q

Compact bone is made up of what?

A

lamellae with no CT spaces/vascular channels

10
Q

what lamellae compose compact bone

A

outer and inner circumferential lamellae, aversion systems and interstitial lamellae

11
Q

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

A

periosteum has many sharpey’s fibers

12
Q

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

A

newer bone next to the cancellous bone and marrow cavity

13
Q

the haversian systems (osteons) have what components

A

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

14
Q

the Haversian canal contains what?

A

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

15
Q

Cancellous bone is also known as what

A

trabecular bone (spongy)

16
Q

Cancellous bone contains what

A

Trabeculae, osteon structure, cell nourishment

17
Q

The trabeculae will align with what?

A

stress (not randome)

18
Q

The trabeculae of spongy bone is surrounded by what? i

A

irregular ct filled spaces

19
Q

What are the two parts of the periosteum

A

fibrous and osteogenic periosteum

20
Q

What is the structure of the fibrous periosteum

A

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

21
Q

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

A

sensory supply

22
Q

what is the function of the fibrous periosteum

A

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

23
Q

the osteogenic periosteum’s structure is what?

A

a single layer of cells

24
Q

what are the possible cell types in the osteogenic periosteum

A

osteogenic cells, osteoblasts, osteoclasts

25
Q

what is the function of the osteogenic periosteum

A

healing, growth and remodeling

26
Q

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

A

the internal surface

27
Q

what are the components of endosteum

A

osteogenic, osteoblast, osteoclasts, and bone lining cells

28
Q

Endosteum is found lining where?

A

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