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Anatomy > 4.4 Joints > Flashcards

4.4 Joints Flashcards

(53 cards)

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1
Q

Synarthotic joints

A

Immobile

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2
Q

Amphiarthrotic joints

A

Partly mobile

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3
Q

Diarthrotic joints

A

Freely moveable

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4
Q

Immobile joints

A

Synarthrotic joints

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5
Q

Partly mobile joints

A

Amphiarthrotic

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6
Q

Freely moveable joints

A

Diarthrotic

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7
Q

Definition joint

A

Point of contact between :
- two bones
- cartilage and bone
- teeth and bone

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8
Q

Function joint

A

Keep bones close and in most cases allow some degree of movement

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9
Q

Two types of classification for joints

A

Structural : type of connective tissue
Functional : degree of movement

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10
Q

Structural types

A

Fibrous
Cartilaginous
Synovial

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11
Q

Functional types

A

Synarthrosis
Amphiarthrosis
Diarthrosis

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12
Q

Joint with synovial cavity

A

Synovial joints

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13
Q

Joints without synovial cavity

A

Fibrous and cartilaginous

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14
Q

Types of fibrous joints

A

Sutures
Syndesmoses (ex gomphoses)
Interosseous membranes

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15
Q

Types of cartilaginous joints

A

Synchondroses
Symphyses

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16
Q

Types of synovial joints

A

Plane
Hinge
Pivot
Condyloid
Saddle
Ball-and-socket

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17
Q

Type of tissue in fibrous

A

Dense irregular connective tissue

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18
Q

Type of tissue in cartilaginous joint

A

Cartilage

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19
Q

Type of tissue in synovial joint

A

Dense irregular connective of an articulate capsule
Sometimes it has ligaments

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20
Q

Type of mvt fibrous

A

Synarthrosis or Amphiarthrotis

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21
Q

Def and description sutures

A

Thin layers of fibrous tissue that unites bones of skull

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22
Q

Mvt sutures + def synostosis

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A

Synarthrosis in adults
And amphiarthrosis in children

Synostosis: remplacement by bone in adults

23
Q

Function sutures

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A

Shock absorption
Bones interlocked with irregular edges : strength

24
Q

Syndesmosis

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A

Articulating surfaces are at a distance and united by fibrous tissue arranged as a bundle (ligament )

25
Example of where Syndesmosis is found
Distal tibiofibular joint
26
From what type of tissue are made Syndesmosis and interosseous membrane
Dense irregular connective tissue
27
Interosseous membrane
Sheet of connective tissue that binds long bone along their length
28
Type of mvt Interosseous membrane
Amphiarthrosis
29
Example Interosseous membrane
Between tibia and fibula
30
Gomphosis type of mvt
Synarthrosis
31
Gomphosis
Dense irregular connective tissue between tooth and socket of alveolar process
32
Type of tissue synchondrosis
Hyaline cartilage Can be ossified
33
Type of tissue symphysis
Fibrocartilage
34
Mvt synchondrosis
Synarthrosis
35
Example synchondrosis
Epiphyseal plate Joints between first rib and sternum
36
Type of joint between ribs and and sternum
Synovial
37
Symphysis form and compo
Flat disc of fibrocartilage
38
Mvt symphysis
Amphiarthrosis
39
Location symphysis
Midline of the body Intervertebral discs, joints between manubrium and body of sternum, pubic symphysis
40
Function articular cartilage
Covers articulating surfaces to reduce friction and absorb shock
41
Articular capsule made of 2 layers
Outer : fibrous layer Inner : synovial membrane
42
Structure of synovial joint
Synovial cavity separating articulating bones Articular cartilage Articular capsule
43
Function synovial membrane + compo
Secretes lubricating and joint nourishing synovial fluid and contains elastic fibers
44
Composition synovial fluid
Hyaluronic acid secrets by synoviocytes and interstitial fluid from plasma
45
What permits strength and mobility of joints
The flexibility of the fibrous capsule permits considerable movement at joints, whereas its great tensile strength (= resistance to stretching) helps prevent bones from dislocating.
46
Other elements of synovial joints
Meniscus /Articular disc Accessory ligament Labrum
47
Meniscus def and function
Cushion of fibrocartilage between the ends of some diarthrosis Increases stability of the joints
48
Accessory ligament def and function
Strong cords or laminate of fibrous tissue in most synovial joints. Important in capsule reinforcement
49
Labrum
Fibrocartilage that seals the cavity
50
Innervation and vascularisation of joints
From nearby structures
51
Sutures replaced by bone in adults
Synostosis
52
Alveolar process
Structure that holds the roots of teeth in place
53
Synovial + fibrous layer
Articular capsule

Anatomy (7 decks)

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