Skeletal System Flashcards
1. Osseous Tissue 2. Axial Skeletal System (Skull Bones/Markings, Vertebral Column, & Thoracic Cage) 3. Appendicular Skeletal System (Shoulder/Pelvic Girdle & Upper/Lower Appendicular Skeleton)
OSSEOUS TISSUE
What is the composite material that makes up bone?
(hint: 2)
- Collagen
- Hydroxyapatite
1. Collagen provides resiliency/flexibility
2. Hydroxyapatite provides hard/rigid structure
OSSEOUS TISSUE
What specialized property does bone have during its remodeling?
Piezoelectric effect
The piezoelectric effect (in bones) refers to the ability to convert mechanical stress into electrical potentials. These electrical potentials illicit responses to rebuild bones in said areas of compression
OSSEOUS TISSUE
If a person’s bone easily shatters (i.e., in older people), what composite material of bones are they missing?
collagen
Dr. Glass has a collgen deficiency
OSSEOUS TISSUE
Do bones regrow? Why?
Yes, due to the piezoelectric nature of bones
OSSEOUS TISSUE
What are the functions of osteoclasts?
Break down broken bones
OSSEOUS TISSUE
What are the function of osteoblasts?
Synthesize new bones
OSSEOUS TISSUE
Where are osteocytes (bone cells) found?
osteocytes are living bone cells
lacuna(e)
osteocytes are stuck in composite of hydroxyapatite and collagen matrix inside lacunae
OSSEOUS TISSUE
In what direction does bone grow?
bone grows outward
OSSEOUS TISSUE
1.
Spongy bones
OSSEOUS TISSUE
2.
Blood vessels
OSSEOUS TISSUE
3.
Compact bone
OSSEOUS TISSUE
4.
Medullary cavity
OSSEOUS TISSUE
5.
(inside the bone)
Endosteum
OSSEOUS TISSUE
6.
(outside the bone)
Periosteum
OSSEOUS TISSUE
7.
Compact bone
OSSEOUS TISSUE
8.
Spongy bone
OSSEOUS TISSUE
9.
Medullary cavity
OSSEOUS TISSUE
10.
(hint: fibers)
Collagen fiber orientation
OSSEOUS TISSUE
11.
Concentric lamellae
OSSEOUS TISSUE
12.
(focus on the passageway)
Central canal
OSSEOUS TISSUE
13.
(focus on the lining of the inside of the canal)
Endosteum
OSSEOUS TISSUE
14.
(focus on the orientation)
Concentric lamellae
OSSEOUS TISSUE
15.
(focus on the orientation)
Interstitial lamellae
OSSEOUS TISSUE
16.
**(focus on the vascularature)
Capillary