Shared Flashcard Set

Details

HUN 1201 - CH. 11
N/A
19
Nutrition
Undergraduate 1
05/01/2013

Additional Nutrition Flashcards

 


 

Cards

Term
Cortical (compact) bone
Definition
dense bone tissue that makes up the outer surface of all bones
Term
Trabecular (spongy) bone
Definition
Makes up 20% of the skeleton
Term
Remodeling is
Definition
the bone recycling process
Term
What are the two steps in remodeling?
Definition
resorption and formation
Term
What happens during resorption?
Definition
osteoclasts erode the bone surface with acids and enzymes
Term
What happens during formation?
Definition
Osteoblasts form new bone
Term
Bone density
Definition
The degree of compactness of bone tissue. 
Term
Factors that influence peak bone density include:
Definition

-Late puberty in boys and girls

-Inadequate calcium intake

-Low body weight

-Physical inactivity

 
Term
Calcium
Definition

Provides structure to bones and teeth. Maintained by parathyroid hormones and calcitonin. 

Term
Vitamin D
Definition
Regulates blood calcium levels.
Term
Vitamin K
Definition
Blood coagulation and bone metabolism.
Term
Phosphorus
Definition
Aids in bone formation.
Term
Magnesium
Definition
Makes up structure of bones.
Term
Flouride
Definition
Develops and maintains teeth and bones
Term
Osteoporosis
Definition
Disease characterized by low bone mass and deterioration of bone tissue.
Term
What does the thyroid gland secrete when there's too much calcium in the blood?
Definition
Calcitonin
Term
What does calcitonin do?
Definition
Inhibits the actions of Vit. D
Term
When can more vitamin D be synthesized?
Definition

When the sun rays are the strongest

(9am-3pm)

Term
What is flourohydroxyapatite?
Definition
Mineral compound of flouride, calcium and phosphorus
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