Skeletal System (Bone Structure Overview) Flashcards Preview

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Flashcards in Skeletal System (Bone Structure Overview) Deck (42):
1

what is the function of the skeletal system?

movement, support, mineral storage, blood cell formation, & protection of organs

2

large rounded projection

tuberosity

3

narrow ridge of bone

crest

4

very large irregular shaped process (only on femur)

trochanter

5

narrow ridge of bone (less than a crest)

tubercle

6

raised area on or above a condyle

epicondyle

7

sharp, slender, sometimes pointed projection

spine

8

any bony prominence

process

9

bony expansion carried on a narrow neck

head

10

smooth, nearly flat articular surface

facet

11

rounded articular projection

condyle

12

arm like bar of bone

ramus

13

furrow (indent)

groove

14

narrow, slit like opening

fissure

15

round or oval opening through a bone

foramen

16

indentation at the edge of a structure

notch

17

canal like passageway

meatus

18

cavity within a bone filled with air and lined with mucus

sinus

19

shallow basin like depression in a bone, often an articular surface

fossa

20

name a bone and where it can be found

long bone- appendages

21

name a different bone and where it can be found

short bone- wrist (carpals)

22

name a different bone and where it can be

flat bone- sternum

23

name a different bone and where it can be

irregular- vertebrae

24

diaphysis and what does it hold

shaft of a bone, holds yellow marrow

25

epiphyses and what does it hold

both ends of long bone, holds red marrow

26

metaphysis

connects diaphysis to the epiphyses

27

periosteum

protective covering over bone and stuff

28

endosteum

protective covering inside bone

29

sesame seed shaped bones

sesamoid bone

30

what can a sesamoid bone do in terms of a muscle

alter the direction of a muscle pull across the joint

31

mature bone cell, maintains the bone matrix

osteocytes

32

immature bone cell, secretes organic compounds of matrix

osteoblasts

33

cell that secretes to dissolve bone matrix

osteoclasts

34

unossified bone matrix made by osteoblasts

osteoid

35

unit of a compact bone

osteon

36

what does collagen fiber orientation help you do?

allows room for torso, ex hand twist in up down side to side

37

where is the red marrow found in spongy bone?

between trabeculae in epiphyses

38

where is the yellow marrow found in spongy bone?

between trabeculae in diaphysis

39

the process of bone formation

ossification

40

epiphyseal plate function/characteristic

epipyseal cartilage lets bone grow and growth stops when the plate closes (aka no more cartilage because its turned into bone)

41

what is the difference between endochondral ossification and intramembranous ossification?

intramembranous ossification does not have any cartilage at all, only CT membranes
endochondral starts with cartilage and most turns to bone

42

fontanels

"soft spots" made of fibrous CT membranes