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Human Anatomy & Physiology I > 11/8 Quiz > Flashcards

11/8 Quiz Flashcards

1
Q

Vitamin D is required for…

A

Calcium absorption in small intestine

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2
Q

Vitamin D deficiency

A

Rickets (children)

Osteomalacia (adults)

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3
Q

Vitamin A is required for…

A

Osteoblasts and osteoclasts for normal development

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4
Q

Vitamin A deficiency

A

Small stature

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5
Q

Vitamin C is required for…

A

Collagen synthesis

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6
Q

Collagen accounts for…

A

90% of protein in bone and cartilage

50-90% of dry weight (skin, ligaments, tendons, teeth)

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7
Q

Vitamin C deficiency

A

Fragile bones

Also fatigue, irritability, tooth loosening, petechiae, leg pain, wounds heal slowly, easy bruising

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8
Q

When does Vitamin C deficiency begin to show symptoms?

A

Around 3 months

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9
Q

Pituitary gland produces

A

Growth hormone

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10
Q

Growth hormone stimulates…

A

Division of cartilage cells in epiphyseal plates

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11
Q

Insufficient growth hormone

A

Dwarfism

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12
Q

Excessive growth hormone

A

Gigantism

Acromegaly

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13
Q

Thyroid gland produces…

A

Calcitonin

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14
Q

Calcitonin stimulates…

A

Osteoblasts to deposit calcium in bone matrix

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15
Q

Parathyroid glands produce…

A

Parathyroid hormone

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16
Q

Parathyroid hormone stimulates…

A

Osteoclasts to release calcium from matrix

17
Q

Male sex hormone

A

Testosterone

18
Q

Female sex hormone

A

Estrogen

19
Q

Sex hormones stimulate…

A

Bone formation and the ossification of epiphyseal plates

20
Q

Bone length at puberty…

A

Increases significantly

21
Q

____________ has a stronger effect of epiphyseal plates.

A

Estrogen

22
Q

Physical stress stimulates…

A

Bone growth

23
Q

Athletes bones are…

A

Thicker and stronger

24
Q

Inactivity lead to…

A

Thinner and weaker bones

Human Anatomy & Physiology I (7 decks)

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