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BDS2 Anatomy > Skeletal - joints > Flashcards

Skeletal - joints Flashcards

1
Q

Name the 3 ways to describe joints by their function

A

Synarthroses
Amphiarthroses
Diarthroses

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2
Q

What is the function of a synarthroses joint?

A

immovable

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3
Q

What is the function of a amphiarthroses joint?

A

slightly movable

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4
Q

What is the function of a diarthroses joint?

A

freely movable

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5
Q

What are 3 ways to describe joints by their structure?

A

fibrous
synovial
cartilaginous

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6
Q

Describe the movement of a fibrous joint

A

tend to be immovable

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7
Q

Describe the movement of a synovial joint

A

tend to be freely movable

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8
Q

Describe the movement of cartilaginous joints

A

exhibit a range

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9
Q

Describe the structure of a fibrous joint

A

contain lots of dense fibrous connective tissue

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10
Q

Do fibrous joints contain a joint cavity?

A

NO

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11
Q

Do fibrous joint connect bones that do or don’t require a lot of movement?

A

Connect bones that do not require a lot of movement

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12
Q

What are the 3 types of fibrous joints?

A

sutures
syndesmoses
gomphoses

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13
Q

Where are suture joints found?

A

found only in the skull

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14
Q

What type of joint is shown

A

fibrous, sutures

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15
Q

What are the syndesmoses joints?

A

bones connected only by ligaments

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16
Q

Where would you find the syndesmoses joints?

A

found between parallel bones

ulna and radius

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17
Q

What type of joint is shown?

A

syndesmoses

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18
Q

What is a ligament?

A

bands of fibrous tissue

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19
Q

Describe the gomphoses joints

A

the specialized fibrous joint that anchors the root of a tooth into its bony socket within the maxillary bone (upper jaw) or mandible bone (lower jaw) of the skull. A gomphosis is also known as a peg-and-socket joint.

20
Q

Where are the gomphoses joints found?

A

tooth and alveolar socket

very limited movement

21
Q

What joint is shown?

A

gomphosis

22
Q

What connects bones in cartilaginous joints?

A

cartilage

23
Q

Do cartilaginous joints contain a joint cavity?

A

NO

24
Q

Are cartilaginous joints movable?

A

not particularly movable

25
Q

What are the 2 types of cartilaginous joints?

A
  1. synchondroses
  2. Symphysis
26
Q

What do synchondroses contain?

A

hyaline cartilage

27
Q

What is an example of a synchondroses?

A

epiphyseal plate

(bone growth in children)

28
Q

What composes symphysis?

A

fibrocartilage and hyaline

29
Q

What is the function of sympheses?

A

compressible
shock absorbers

30
Q

Where are the sympheses found?

A

between vertebrae
in the pelvis

31
Q

What joint is shown below?

A

sympheses

32
Q

What joint is shown below?

A

sympheses

33
Q

What joint is this an example of?

A

synchondroses

34
Q

What type of joint are most joints?

A

synovial

35
Q

What type of joint is shown here?

A

synovial

36
Q

Name structures A-E

A
37
Q

Describe the movements of synovial joints

A
  1. nonaxial movement (slipping movement)
  2. Uniaxial movement
  3. Biaxial movement
  4. multiaxial movement
38
Q

What is a gliding motion?

A

one flat bone surface slips over another

39
Q

Where does a sliding motion occur?

A

ankles and wrists

40
Q

What is an angular movement?

A

angle between 2 bones changes -
flexion and extension

41
Q

What are examples of movement in synovial joints?

A

flexion - decrease the angle between 2 bones

abduction and adduction

circumduction

rotation

42
Q

What is the motion produced by the ulna and radius?

A

radius moving around the ulna

(supination and pronation)

43
Q

Describe the motion of the mandible

A

protraction and retraction

44
Q

What is the meniscus?

A

a C-shaped piece of tough, rubbery cartilage that acts as a shock absorber between the shinbone and the thighbone.

45
Q

What is the role of meniscus?

A

shock absorption

46
Q

What cartilage comprises the meniscus?

A

fibrocartilage

BDS2 Anatomy (32 decks)

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