5.2 lab - bone formation and growth Flashcards Preview

COT 1 (WPH) > 5.2 lab - bone formation and growth > Flashcards

Flashcards in 5.2 lab - bone formation and growth Deck (13)
1

this bone cell type is a specialized macrophage

osteoclast

2

T/F both periosteal and endosteal surfaces are completely lined with cells

true

3

how is an osteoclast formed?

from fusion of multiple monocytes

4

how to identify osteoclast?

large and multinucleated on surface of bone
-howship's lacuna - thin rim of demineralized bone being resorbed by osteoclast

5

howship's lacuna

thin rim of demineralized bone being resorbed by osteoclast

6

2 layers of periosteum

cellular (bone lining cells)
fibrous layer (condensed fibrous layer)

7

how can you identify an osteoprogenitor cell?

can't
will look like bone lining cell, can't really tell difference

8

thin rim of demineralized bone being deposited by osteoblast

osteoid

9

thin rim of demineralized bone beneath an...
-osteoblast
-osteoclast

osteoid
howship's lacuna

10

T/F normal adult hyaline cartilage is avascular

true
(blood supply brings calcium and triggers mineralization of cartilage matrix in endochondral ossification)

11

isogenous groups

clusters of chondrocytes
formed from parent chondrocyte and all hang around together

12

what is the appearance of isogenous groups in the epiphyseal growth plate? why?

linear
because matrix is growing in one direction

13

what is the difference between perichondrium and periosteum?

essentially the same, each has inner cellular and outer fibrous layers, just one surrounds cartilage and one surrounds bone