Ch. 1 - Bone development and bone markings Flashcards
1
Q
Endochondral bones
A
develop from hyaline cartilage, grow rapidly into structures similar to the bones they will eventually become
2
Q
Bones can only grow longitudinally as long as what is open?
A
the growth plate, which begins closing around adolescence
3
Q
Osteoblasts
A
new bone is formed by these
4
Q
Osteoclasts
A
bone is absorbed by these
5
Q
What are bones made of?
A
- calcium, collagen and water
6
Q
Cortical vs. cancellous
A
- cortical - usually outer bone, withstand more stress, low porosity
- cancellous - usually inner bone, withstand more strain, spongy, high porosity
7
Q
Wolff’s law
A
bone in a healthy individual will adapt to the loads under which it is placed, more load = stronger bone
8
Q
Condyle (Process)
A
- large, rounded projection that usually articulates with another bone
- medial or lateral condyle of femur
9
Q
Facet (Process)
A
- small, flat or nearly flat surface
- articular facet of vertebra
10
Q
Head (Process)
A
- prominent, rounded projection of the proximal end of a bone, usually articulating
- head of femur, head of humerus
11
Q
Crest (Process)
A
- prominent, narrow, ridgelike projection
- iliac crest of pelvis
12
Q
Epicondyle (Process)
A
- projection located above a condyle
- medial or lateral epicondyle of humerus
13
Q
Line (Process)
A
- ridge of bone less prominent than a crest
- linea aspera of femu
14
Q
Process (Process)
A
- any prominent projection
- acromion process of scapula, olecranon process of humerus
15
Q
Suture (Process)
A
- line of union between bones
- sagittal suture between parietal bones of the skull
