Skeletal System Flashcards

(66 cards)

1
Q

Two Types of Skeleton

A

Axial and appendicular

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2
Q

Axial

A

Supports the upright position and protects internal organs (80 bones) skull, vertebrate, rib cage, and sternum

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3
Q

Appendicular

A

Aid in the movement of the body (126 bones) pectoral girdle, arms, forearms, hands, pelvis, legs, feet, and ankles

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4
Q

Total Bones

A

206 bones

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5
Q

Skeletal System Functions

A

Support and protection, body movement, produces blood cells, storage of minerals and fats

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6
Q

Epiphysis

A

Bone ends

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7
Q

Diaphysis

A

Middle of bone

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8
Q

Articular Cartilage

A

End padding tissue on bone

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9
Q

Periosteum

A

Bone membrane

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10
Q

Medullary Cavity

A

Hollow chamber filled with bone marrow

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11
Q

Compact Bone Tissue

A

Wall of the diaphysis

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12
Q

Spongy Bone Tissue

A

Cancellous bone in epiphysis

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13
Q

Long Bones

A

Cylinder shaped, longer than its wide; leverage; tibia, fibula

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14
Q

Short Bones

A

Cube shaped, approximately equal in dimensions; stability, support, motion; carpals, tarsals

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15
Q

Flat Bones

A

Thin, curved; muscle attachments and organ protectors; sternum, ribs

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16
Q

Irregular Bones

A

Complex shaped; protect organs; vertebrae, facial bones

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17
Q

Sesamoid Bones

A

Small, round; protect tendons; patellae

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18
Q

Red Bone Marrow

A

White and blood cells

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19
Q

Yellow Bone Marrow

A

Fat

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20
Q

Pivot

A

Uniaxial; allows rotational movement; proximal radioulnar joint

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21
Q

Hinge

A

Uniaxial; allows flexion/extension movements; knee

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22
Q

Condyloid

A

Biaxial; allows flexion/extension, abduction/adduction, circumduction; joint of fingers

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23
Q

Saddle

A

Biaxial; allows flexion/extension, abduction/adduction, circumduction; sternoclavicular joint

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24
Q

Plane

A

Multiaxial; allows inversion/eversion; intertarsal joints of food

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25
Ball-and-socket
Multiaxial; allows medial/lateral rotation movements; shoulder/hip joints
26
Flexion/Extension
Flexing and extending your arm
27
Adduction/Abduction/Circumduction
Add: arms close Ab: arms away C: move in circles
28
Rotation
Medial/Lateral; head to left and middle
29
Supination/Pronation
P: hand down S: hand up
30
Dorsiflexion/Plantar Flexion
Ankle up, ankle down
31
Inversion/Eversion
Ankle in, ankle out
32
Protraction/Retraction
Head to front, head to back
33
Depression/Elevation
Low shoulder, high shoulders
34
Opposition/Reposition
Index and thumb together, normal hand
35
Bones in Cranium
22 bones
36
Movable Bone in Skull
The mandible (lower jaw)
37
Five Vertebral Regions
Cervical, thoracic, lumbar, sacrum, and coccyx
38
Vertebrae in Cervical
7 vertebrae in cervical (neck)
39
Vertebrae in Thoracic
12 thoracic vertebrae (middle of spine)
40
Vertebrae in Lumbar
5 lumbar vertebrae (lower back)
41
Scoliosis
Curve in spine (Curve sideways)
42
Kyphosis
Humpback (Curve outward)
43
Lordosis
Swayback (Curve inward)
44
Thoracic Cage
Protects heart and lungs
45
Costal Cartilage
Rib bone connects to sternum (middle chest bone)
46
Three Types of Ribs
True ribs (7) False ribs (3) Floating ribs (2)
47
Pectoral Girdle
The clavicle and scapula
48
Humerus
Top of the arm (shoulder to elbow)
49
Radius
Outer bone of the forearm
50
Ulna
Inner bone of the forearm
51
Carpals
Wrist
52
Metacarpals
Palm bones (between wrist and fingers)
53
Phalanges
Fingers
54
Femur
Thigh bone (between knee and pelvis)
55
Tibia
Big bone in shin
56
Fibula
Thin bone in shin
57
Tarsals
Ankle
58
Metatarsals
Bones between toes and ankles
59
Open (simple)
There is an open wound or break in the skin near the site of the broken bone
60
Closed (compounded)
If the injury doesn't break open the skin
61
Transverse
The bone perpendicular to the axis of the bone
62
Oblique
The break has a curved or sloped pattern
63
Spiral
Long bones that result from a rotational force applied to the bone
64
Comminuted
Break of the bone into more than two fragments
65
Impacted
When the broken ends of the bone are jammed together by the force of the injury
66
Greenstick
When a bone bends and cracks