Next-Gen

Chapter 11: Bones Tissue and Osteoporosis

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by eeveesnoopy
Last updated 3 years ago

Discipline:
Science
Subject:
Human Anatomy

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Chapter 11: Bones Tissue and Osteoporosis

In bone remodeling, there are two processes:Bone breaks down through the process of resorption with osteoclast cells which erode bone surface with enzymes.New bone formation happens with osteoblast cells which lay down the collagen-containing organic component of bone. Article with more explanation of bone remodeling

Details of Bone Remodeling

Osteoporosis - disease characterized by low bone mass & deterioration of bone tissue, leading to increased bone fragility and fracture risk.> It is the most important cause of fractures of the hip and spine of older adults.> Gradual compression fractures in vertebrae of upper back lead to hunching of the spine called kyphosis (dowager's hump).

Chapter 11:

Bones develop through a series of three processes:Bone growth - process the determines the size of bones. Bone modeling - determines bone shape.Bone remodeling - maintains integrity of bone by replacing old bone with new bone. There are two types of bone tissue: cortical (generally the outter part) and trabecular (the inner part).

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Osteoporosis Affects Bone Health

Why Bone Density is Important

> Bone density - the degree of compactness of bone tissue, reflecting the strength of bones.> Before we reach the age of 30 years, we can no longer significantly add to our bone density, and it continues to decline with age.

- Consume adequate calcium and vitamin D. - Exercise regularly. Website with exercises to help osteoporosis- Medications: busphosphonates, selective estrogen receptor modulators, calcitonin, hormone replacement therapy (HRT).

Treatments of Osteoporosis

Bone Tissue is Constantly Active

The Processes of Bone Tissue and Osteoporosis

By Kelsi Mullen

> Aging - bone density declines with aging and hormonal changes impact bone loss. Article about fractures in elders> Gender & genetics - women have lower absolute bone density and are more at risk, and family history affects it as well.> Nutritional factors - lacking in protein, vitamin D, calcium increases risk. Too much sodium may have a negative impact.> Tobacco, alcohol, and caffeine - decreases bone density and increases calcium loss.

What Influences Osteoporosis Risk

busaca.com

myfamilymeddocs.com

boneacademy.ca

> Lower bone density increases risk for osteoporosis in later years. Article about osteoporosis and low bone density in children> Factors associated with lower bone density: inadequate calcium intake, low body weight, lack of physical activity, and late pubertal age/onset of menstruation in kids.


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