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A&P Exam 2 > Ch 7 > Flashcards

Ch 7 Flashcards

1
Q

Calcitonin

A

Encourages calcium deposition from blood into bone

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2
Q

Parathyroid hormone

A

Stimulates osteoclasts to resort bone and increase blood calcium

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3
Q

Thyroid hormone

A

Influences basal metabolic rate of bone cells

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4
Q

Intramembranous ossification

A

Parietal bones

Clavicle

Maxilla

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5
Q

Endochondral ossification

A

Formation of bone from cartilaginous model

Fibula

Phalanges

Femur

Ribs

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6
Q

Osteoprogenitor cells

A

Stem cells

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7
Q

Osteoblasts

A

Bone-building cells

Involved with bone deposition

Calcitonin causes cells to become more active

Increase activity when blood calcium levels are too high

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8
Q

Osteoclasts

A

Bone resorbing cells

Massive, multinucleate cells

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9
Q

Osteocytes

A

Bone cells encased in matrix

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10
Q

Diaphysis

A

Shaft of bone that contains medullary cavity (hollow space)

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11
Q

Epiphysis

A

Ends of bones

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12
Q

Rickets

A

Vitamin D deficiency

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13
Q

Green stick fracture

A

Only one side of bone is broken; other side is bent

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14
Q

Pathologic fracture

A

Occurs in bone that is already weakened from a disease

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15
Q

Osteoporosis

A

Reduction of bone mass

Typically in women

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16
Q

Osteomalacia/rickets

A

Softening of bones due to decrease in vitamin D

Rickets: children

17
Q

Osteogenesis imperfecta

A

Hereditary

Brittle bones

18
Q

Osteomyelitis

A

Infection in bone

Can travel through bloodstream or nearby tissue

19
Q

Achondroplastic dwarfism

A

Due to abnormal conversion of hyaline cartilage to bone

Long bones and limbs stop growing, other bones grow normally

20
Q

Kyphosis

A

Exaggerated thoracic curve

Hunchback

21
Q

Lordosis

A

Exaggerated lumbar curvature

Swayback

Obesity or pregnant woman

A&P Exam 2 (3 decks)

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