Support Systems in Animals (Grade 10 NSC Matric Life Sciences): Flashcards
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3 most common skeletal system diseases
3 most common skeletal system diseases
Rickets, osteoporosis, arthritis
Main cause of rickets
Main cause of rickets
Lack of vitamin D, phosphorous, or calcium
Effect of rickets on bone tissue
Effect of rickets on bone tissue
Soft and weak bones
Function of osteoclasts
Function of osteoclasts
Break down old bone tissue
Function of osteoblasts
Function of osteoblasts
Build up new bone tissue
Bone remodelling imbalance in osteoporosis
Bone remodelling imbalance in osteoporosis
Osteoclast breakdown > osteoblast formation
Group most affected by osteoporosis
Group most affected by osteoporosis
Older women (after menopause)
Type of disorder: rheumatoid arthritis
Type of disorder: rheumatoid arthritis
Auto-immune disorder
Cause of wear-and-tear arthritis
Cause of wear-and-tear arthritis
Daily wear, cartilage wears away from bone friction
Can arthritis be cured?
Can arthritis be cured?
No, it cannot be cured