Chapter 6 - Osseous Tissue and Skeletal Structure Notes Flashcards Preview

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Flashcards in Chapter 6 - Osseous Tissue and Skeletal Structure Notes Deck (105)
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1

the skeletal system includes

bones of the skeleton
cartilages
ligaments
other connective tissues

2

function of the skeletal system

structural support
storage of minerals and lipids
blood cell production
protection and leverage

3

categories of bones (shapes)

long
short
irregular
flat
sesamoid
sutural (wormian)

4

a typical long bone has

diaphysis
epiphyses
metaphyses
articular cartilages
marrow cavity

5

diaphysis

the shaft of the bone

6

epiphyses

head of the bone, this is where the growth plate is found

7

metaphysys

referred to as the neck of the bone

8

articular cartialage

the region of the bone that articulates with another bone forming a joint

9

marrow cavity

center cavity of the bone and is composed of soft marrow

10

where does blood cell production occur

marrow cavity

11

what are the two types f bone

compact (dense)
spongy (cancellous)

12

the marrow cavity and spaces within spongy bone contain two types of _________

bone marrow

13

two types of bone marrow

yellow (lipid storage)
red (blood cell formation)

14

________ is a supporting connective tissue with a solid matrix

osseous tissue

15

the ________ is very dense and contains deposits of calcium salts

bone matrix

16

the bone matrix consists of

largely of crystals of hydroxyapatite (formed when calcium phosophate interacts with calcium hydroxide)

17

______ are mature bone cells that account for most of the cell population

osteocytes

18

each osteocyte occupies a

lacuna

19

lacuna

a pocket sandwiched between layers of matrix

20

layers of matrix are called

lamellae

21

function of osteocytes

maintain and monitor the protein and mineral content of the surrounding matrix

also can participate in the repair of damaged bone

22

osteoblasts synthesize the bony matrix in a process called

osteogenesis

23

bone contains small numbers of mesenchymal cells called

osteoprogenitor cells

24

osteoprogenitor cells function

divide to produce daughter cells that differentiate into osteoblasts

25

________ giant cells with 50 or more nuclei

osteoclasts

26

osteoclasts dissolve the bony matrix through

osteolysis or resorption

27

osteoclasts are always _______ matrix and osteoblasts are always _________

removing
adding it

28

basic functional unit of compact bone

osteon

29

the osteon contains

osteocytes

30

the osteocytes are arranged around a

central canal