chapter 2 skeletal system Flashcards
1
Q
axial skeleton
A
head, trunk, thorax
2
Q
appendicular
A
pelvis, arms, legs
3
Q
compact bone
A
makes up the outer shell
4
Q
cancellous bone
A
- porous and spongy inside of bone
- resists stress and strain
- makes up end of most articular bones
5
Q
diaphysis
A
main shaft of bone
6
Q
medullary canal
A
hollow
- center of diaphysis
- contains bone marrow
7
Q
endosteum
A
membrane lining medullary canal in bones
8
Q
epiphysis
A
end of diaphysis (clubby head)
- wider than shaft
- growth occurs in children
9
Q
metaphysis
A
-in between the diaphysis and the epiphysis
10
Q
periosteum
A
membrane covering bone except joints
- contains nerves and blood vessels
- attachement point for ligaments and tendons
11
Q
long bones
A
length greater than width
- compact bone is more centralized where stress is greatest
- example is phalanx
12
Q
short bones
A
more equal dimensions, cubical
-example is carpals
13
Q
flat bones
A
- thin
- curved surfaces
- example is the ribs
14
Q
irregular bones
A
mixed shape
-example is the vertebrae
15
Q
sesamoid bones
A
“sesame seeds”
- small bones locked where a tendon crosses the end of a long bone
- example is the patella (knee)
