Download Bone

BONES
Matt, Tyler and Joe
Outline
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Developmental Anatomy
Bone Formation and Ossification
Stored and Stores
Consumed
Rebuilds (Grows)
Developmental Anatomy
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5th week
6th week
7th week
8th week
Stages
Bone Formation or Ossification
• Intramembranous
• Endochondral
Intramembranous ossification
• Fibrous connective tissue membrane
• Bone matrix is secreted
• Woven bone and periosteum form
• Compact bone forms and red marrow appears
Endochondral ossification
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Development of cartilage model
Growth of cartilage model
Development of the primary ossification center
Development of the secondary ossification center
Formation of articular cartilage and epiphyseal plate
Aging & Bone Tissue
• Bone is being built through adolescence, holds its own in
young adults, but gradually lost in aged.
• Demineralization
• Decreased in protein synthesis
Bone Stores
• Solid minerals
• Calcium and phosphorus
• Your bones contain roughly 99 percent of the calcium and 85
percent of the phosphorus in your body
• As components of mixed crystals, minerals transform spongy
bone matrix into a rigid structure
Good-for-Your-Bones Foods
Food
Nutrient
Dairy products such as low-fat and non-fat milk, yogurt and cheese
Calcium.
Some dairy
products are
fortified with
Vitamin D.
Fish
Canned sardines and salmon (with bones)
Fatty varieties such as salmon, mackerel, tuna and sardines
Calcium
Fruits and vegetables
Collard greens, turnip greens, kale, okra, Chinese cabbage, dandelion greens, mustard greens and
broccoli.
Spinach, beet greens, okra, tomato products, artichokes, plantains, potatoes, sweet potatoes,
collard greens and raisins.
Tomato products, raisins, potatoes, spinach, sweet potatoes, papaya, oranges, orange juice,
bananas, plantains and prunes.
Red peppers, green peppers, oranges, grapefruits, broccoli, strawberries, brussels sprouts, papaya
and pineapples.
Dark green leafy vegetables such as kale, collard greens, spinach, mustard greens, turnip greens
and brussel sprouts.
Fortified Foods
Vitamin D
Calcium
Magnesium
Potassium
Vitamin C
Vitamin K
Calcium and vitamin D are sometimes added to certain brands of juices, breakfast foods, soy milk, Calcium,
rice milk, cereals, snacks and breads.
Vitamin D
Stored
• Bone is stored in the body within softner bodily tissues
(muscle and adipose)
• Location of the bone determines its function
• Ribs
• Skull
• Joints
Layer (Outer)
• Hard outer layer of bone is referred to as cortical or compact
bone
• Cortical bone is covered in osteoblasts and osteocytes
• Metabolically active and constantly reabsorb
and create bone
Layer (Inner)
• Cancelllous/ trabecular/ spongy bone
• Houses the bone marrow and stem cells
• Created in the bone marrow
• Platelets
• Red blood cells
• White blood cells