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Musculoskeletal Anatomy > Skeletal System > Flashcards

Skeletal System Flashcards

1
Q

How many bones is the skeletal system is composed of?

A

206 bones

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2
Q

The skeletal system can be divided into what?

A

Bones of axial body and bones of appendicular body

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3
Q

How is a joint formed?

A

Wherever two or more bones come together

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4
Q

What is formed when two or more bones come together?

A

Joints

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5
Q

How can joints be classified?

A

Structurally and Functionally

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6
Q

What can be classified structurally and functionally?

A

Joints

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7
Q

What are the 3 structural classifications of joints?

A

Fibrous
Cartilaginous
Synovial

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8
Q

Is fibrous, cartilaginous and synovial structural or functional?

A

Structural

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9
Q

What type of structural join is united by dense fibrous fascial tissue?

A

Fibrous

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10
Q

What type of structural joint is united by fibrocartilage?

A

Cartilaginous joints

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11
Q

What type of structural joints are united by a thin fibrous capsule that is lined internally by a synovial membrane?

A

Synovial Joint

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12
Q

What fluid is in synovial joint?

A

Synovial fluid

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13
Q

What are the functional classifications of joints?

A

Synarthrotic
Amphiarthrotic
Diarthrotic

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14
Q

Is synarthrotic, amphiarthrotic and diarthrotic joints structural or functional?

A

Functional

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15
Q

What functional joint permits very little motion?

A

Synarthrotic joints

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16
Q

What functional joints allow limited to moderate motion?

A

Amphiarthrotic joints

17
Q

What functional joints allow a great deal of motion?

A

Diarthrotic joints

18
Q

What are usually subdivided based on the number of axes around which they allow motion?

A

Synovial Joints

19
Q

What are the types of synovial joint?

A

Uniaxial
Biaxial
Triaxial
Nonaxial

20
Q

What synovial joint : Uniaxial, Biaxial, Triaxial or Nonaxial?
- Act similar to HINGE of door
- One surface concave ; other spool like
- Flexion and extension allowed in sagittal plane around a mediolateral axis

A

Uniaxial joint

21
Q

What synovial joint :
Biaxial
One surface concave, other convex
Convex surface of one one fits into concave surface of the other

A

Condyloid joint

22
Q

What synovial joint : Uniaxial, Biaxial, Triaxial or Nonaxial?
Allow only rotation motions in transverse plane around a vertical axis
PIVOT

A

Uniaxial pivot joints

23
Q

What synovial joint :
Biaxial
Both bones have convex and concave shape
Convexity of one bone fits into concavity of other and vice versa
Flexion and extension allowed in one plane
Abduction and adduction allowed in second plane

A

Saddle

24
Q

What type of synovial joint?
Triaxial joint
Only one major type
One bone shaped like a ball and fits into socket shape of the other bone

A

Ball and socket joint

25
Q

What type of synovial joints are hinge and pivot?
ex. elbow and ankle joints

A

Uniaxial

26
Q

What type of synovial joints are condyloid and saddle?
ex. wrist and metacarpophalangeal joint

A

Biaxial

27
Q

What type of synovial joint is ball and socket?
ex. shoulder and hip

A

Triaxial

28
Q

What type of synovial joint permit motion within a plane, but motion is linear gliding and not circular around an axis
Surfaces usually flat or curved

A

Nonaxial

29
Q

Uniaxial, Biaxial, Triaxial or Nonaxial?
Hinge, Pivot

A

Uniaxial

30
Q

Uniaxial, Biaxial, Triaxial or Nonaxial?
Condyloid, Saddle

A

Biaxial

31
Q

Uniaxial, Biaxial, Triaxial or Nonaxial?
Ball and Socket

A

Triaxial

32
Q

Uniaxial, Biaxial, Triaxial or Nonaxial?
Gliding

A

Nonaxial

Musculoskeletal Anatomy (25 decks)

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