Lesson 6 Flashcards

1
Q

on going replacement of old bone tissue by new bone tissue

A

bone remodeling

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2
Q

removal of minerals and collagen fibers from bone by osteoclasts

A

Bone resorption

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3
Q

attaches tightly to the bone surface at the endosteum or periosteum during the process of bone resorption

A

osteoclasts

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4
Q

enhances synthesis of the proteins needed to build new bone

A

Nutrition

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5
Q

from pancreas that promotes bone growth by increasing the synthesis of bone proteins

A

insulin

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6
Q

destruction of bone extracellular matrix

A

bone resorption

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7
Q

addition of minerals and clagen fibers to bone by osteoblasts

A

bone deposition

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8
Q

results in formation of bone extracellular matrix

A

bone deposition

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9
Q

about how many percent of the total bone mass in the body is being remodeled

A

5%

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10
Q

bone remodeling may be triggered by factors such as

A

exercise, sedentary lifestyle, changes in diet

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11
Q

Process of Bone Resorption

A

Quiescent
Activation
Resorption
Formation
Mineralisation

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12
Q

Factors affecting bone growth and bone remodeling

A

MVH
- intake of Minerals
- intake of Vitamins
- Hormones

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13
Q

necessary during bone remodeling

A

Minerals, like calcium and phosphorus as well as magnesium, flouride, maganese

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14
Q

stimulates activity of osteoblasts

A

Vitamin A

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15
Q

needes for synthesis of collagen

A

Vitamin C

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16
Q

main bone protein

A

Collagen

17
Q
  • produced by the liver and bone tissue
  • stimulate osteoblasts, promotes cell division
A

IGFs - Insulin like growth factors

18
Q

from thyroid gland

A

thyroid hormones (T3 and T4)

19
Q
  • from pancreas
A

Insulin

20
Q
  • causes dramatic effect on bone growth
A

sex hormones

21
Q

contribute to bone remodeling by slowing bone resorption of old bone and promoting deposition of new bone

A

sex hormones

22
Q

programmed death of osteoclasts

A

apoptosis

23
Q

stimulate bone growth

A

insulin like growth factors
human growth hormone
thyroid hormones
insulin

24
Q

needed fo bone growth and maintenance

A

dietary minerals - ca and phosphorus
vitamins - A, C, D, K and B12