SKELETAL SYSTEM Flashcards

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1
Q

THE HUMAN SKELETON IS COMPOSED OF :

A

BONES
LIGAMENTS
TENDONS
CARTILAGE

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2
Q

INFANTS HAVE MORE THEN ____ BONES AT BIRTH

A

300

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3
Q

____ BONES IN THE ADULT HUMAN BODY

A

200

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4
Q

ENUMERATE THE FUNCTIONS OF THE SKELETAL SYSTEM

A
  1. STRUCTURE AND SUPPORT
  2. PROTECTION
  3. MOVEMENT
  4. STORAGE
  5. BLOOD CELL PRODUCTION
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5
Q

THE BONES CAN BE CLASSIFIED INTO TWO MAJOR GROUPS :

A

AXIAL AND APPENDICULAR

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6
Q

LONGER THEN THEY ARE WIDE

A

LONG BONE

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7
Q

ROUGHLY CUBE SHAPED

A

SHORT BONES

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8
Q

THIN, FLATTENED AND USUALLY A BIT CURVED

A

FLAT BONES

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9
Q

HAVE WEIRD SHAPES

A

IRREGULAR BONES

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10
Q

HARD OUTER COVERING

A

PERIOSTEUM

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11
Q

ENDS OF THE BONE

A

EPIPHYSIS

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12
Q

THE SHAFT OF THE BONE

A

DIAPHYSIS

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13
Q

CUSHIONS THE ENDS OF THE BONES ALLOWS FOR SMOOTH MOVEMENT

A

ARTICULAR CARTILAGE

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14
Q

AREAS MADE OF CARTILAGE ALLOWING FOR THE GROWTH OF THE BONE

A

EPIPHYSEAL PLATE

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15
Q

IN _________, OSTEOCYTES ( BONE CELLS ) ARE ARRANGED IN RINGS AROUND CENTRAL CANALS

A

COMPACT BONES

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16
Q

PROVIDES STRENGTH AND RESILIENCE

A

COLLAGEN ( PROTEIN )

17
Q

PROVIDES HARDNESS AND RESISTANCE TO CRUSHING

A

CALCIUM

18
Q

COMPOSED OF IRREGULAR AND INTERCONNECTED CHANNELS CREATING LOTS OF SPACE

A

SPONGY BONE

19
Q

WHAT ARE THE THREE TYPES OF BONE CELLS

A
  1. OSTEOCYTES
  2. OSTEOBLASTS
  3. OSTEOCLASTS
20
Q

MATURE BONE CELLS, SUSPENDED IN MATRIX

A

OSTEOCYTES

21
Q

BUILDS NEW BONE BY ADDING COLLAGEN AND CALCIUM TO MATRIX

A

OSTEOBLASTS

22
Q

BREAKS DOWN MATRIX TO RELEASE STORED CALCIUM

A

OSTEOCLASTS