chapter 5 - skeletal system lecture - napa valley college...
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Chapter 5 – Skeletal System
BIO 105
Skeletal System components
Functions of the skeleton
1. Support
2. Movement
3. Protection
4. Storage of minerals
5. Fat storage
6. Blood cell production (hemopoiesis or
hematopoiesis)
Bone tissue
Compact bone:
Spongy bone:
4
Bone remodeling continues throughout life
Osteoblast vs. osteoclast activity
Bone deposition + bone resorption
Osteoporosis
Ca2+ levels within bone under hormonal control
Regulation of bone growth
Divisions of the human skeleton
7
Appendicular SkeletonJoints
Joint = a place where bones meet
Fibrous joints – bones held together by fibrous connective tissue
Joints
Cartilaginous joints – bones connected by cartilage
- pubic symphysis
- between vertebrae
Joints
Synovial joints – joints that are freely
movable