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a and p > Skeletal System test 2 > Flashcards

Skeletal System test 2 Flashcards

1
Q

Functions of the skeletal system

A

support, storage minerals, lipids, blood cells production, protection

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2
Q

Osteocyte

A

bone cells

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3
Q

collagen fibers

A

1/3 bone weight, protein fibers

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4
Q

Periosteum

A

outer fibrous surface of bone

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5
Q

articular cartilage

A

protects opposing bone surfaces

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6
Q

Trabeculae

A

lamellae form rods and plates. this is what makes up spongy bone

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7
Q

Osteoclasts

A

breaks down old bone

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8
Q

Epiphyseal line

A

at puberty bone accelerates overtakes cartilage

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9
Q

Vitamin D3

A

formed by ultraviolet light, then formed in liver and kidney

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10
Q

Osteomalacia/rickets

A

bones softening in adults, rickets in children

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11
Q

Parathyroid hormone

A

raises calcium level in blood

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12
Q

Calcitonin

A

lowers calcium level in blood. hormone from thyroid

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13
Q

How many bones?

A

206

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14
Q

Axial skeleton

A

skull, spine, sacrum, coccyx, ribs

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15
Q

Primary curves

A

thoracic, sacral

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16
Q

Kyphosis

A

exaggerated thoracic curve

17
Q

Scoliosis

A

abnormal lateral curve

18
Q

Ribs

A

12 pairs

19
Q

Diarthroses/freely movable joints

A

synovial joints

20
Q

Synovial fluid

A

reduces joint friction

21
Q

Intervertebral discs

A

made of tough fibrocartilage layers. decreases in height as we age.

22
Q

Flexion

A

decreasing the angle between articulating bones relative to anatomical position

23
Q

Extension

A

increasing the angle

24
Q

Abduction

A

moving a limb away from the longitudinal axis of the body or away from midline

25
Q

Adduction

A

moving a limb toward the longitudinal axis of boy or towards midline

26
Q

Pronation

A

moving palm from pam facing –front to palm –facing back

27
Q

Inversion

A

twist sole of foot inwards

28
Q

Dorsiflexion

A

elevates sole of ankle– toes toward shins

29
Q

Lateral flexion

A

bending of the vertebral column to the side in the frontal plane

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