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