Bone Structure And Growth Flashcards
What is the primary material that most of the skeleton consists of in a foetus?
Cartilage
Cartilage is a tough flexible tissue that eventually transforms into bone.
How many bones does a baby have at birth, and how many are there in adulthood?
300 bones at birth and 206 bones in adulthood
What is ossification?
The process in which bone is formed from cartilage
Name two bone minerals essential for bone creation.
- Calcium
- Phosphorous
What are osteoblasts?
Cells that build bone by bringing calcium to the bones
What type of exercises are effective in increasing bone strength?
- Load bearing exercises
- Tennis
- Netball
- Running
True or False: Non-weight bearing activities like swimming increase osteoblast activity.
False
What do osteoclasts do?
They destroy or clean away old bone
What is the role of osteocytes?
They grow tissues and aid in calcium removal from the bone
How is bone density maintained?
By balancing the activity of osteoblasts and osteoclasts
What percentage of calcium is found within our bones?
65-70%
What vitamins are essential for the formation and growth of bone tissue?
- Calcium
- Vitamin D
Fill in the blank: Bone remodeling involves the ongoing process of _______ being removed and new bone tissue being formed.
mature bone tissue
What happens to bones during the process of remodeling?
Osteoclasts break down old bone, and osteoblasts build new bone
List some short-term effects of exercise on the skeletal system.
- Increased production of synovial fluid in joints
- Increased range of movement
- Reduced impact of exercise
