Flashcards
The Skeletal System
Flashcards do conjunto (10)
- 1The skeletal system has 6 major functions...1. Support
2. Shape
3. Protection
4. Mineral storage
5. Haematopoiesis
6. Leverage - 2There are 3 types of animal skeletons...1. Hydrostatic skeletons
2. Exoskeletons
3. Endoskeletons - 3There are 5 main classifications of bone...1. Long
2. Short
3. Flat
4. Sesamoid
5. Irregular - 4Bones are living tissues with distinct compartments; a long bone consists of...1. An epiphysis on each end
2. A diaphysis in the middle
3. A metaphysis between each epiphysis & diaphysis - 5There are several types of bone tissue, including:1. The periosteum
2. Compact bone
3. The endosteum
4. The medullary cavity
5. Spongy bone - 6Wolff's law states that...Trabeculae are aligned along the principle lines of stress: they can adapt in response to pressure!
- 7There are 3 types of bone cells...1. Osteoblasts
2. Osteocytes
3. Osteoclasts - 8Osteoporosis and osteopetrosis are examples of bone pathologies due to impaired function of bone cells.1. Osteoporosis
a. "Brittle bones"
b. Osteoclast activity > Osteoblast activity
2. Osteopetrosis
a. Excessively thick bones
b. Osteoblast activity > Osteoclast activity - 9Bone is composed of 67% inorganic component & 33% organic component.1. Inorganic component
a. Hydroxyapatite
2. Organic component
a. 90% collagen
b. 10% other proteins - 10—
Informações
- Descrição
- Description of the skeletal systems of higher animals.
- Criado por
- Luke Evans
- Visualizações
- 38
- Tags
- Avaliação