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CABS - MSK > 1000ft view Joints > Flashcards

1000ft view Joints Flashcards

1
Q

What is another name for joints

A

articulations

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2
Q

What is the purpose of joints

A

stabilizing or allow for mobility

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3
Q

how are joints classified

A

by shape, degree of movement and involved connective tissue

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4
Q

What are immovable joints

A

synarthosis

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5
Q

what are joints with some movement

A

amphiarthrosis

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6
Q

what are mobile joints

A

diarthrosis

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7
Q

what is a synarthosis joints

A

immovable joints

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8
Q

what are amipharthrotic joints

A

joints with some movement

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9
Q

what are diarthrotic joints

A

mobile joints

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10
Q

what are the connective tissue joint classifications

A

fibrous, cartilaginous, synovial

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11
Q

what is a fibrous joint

A

direct connection of bone to bone via fibrous connective tissue - typically form synarthroses

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12
Q

what are the types of fibrous joints

A

suture, syndesosis and gomphosis

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13
Q

what is a suture

A

interlocking of flat bone with dense fibrous tissue

i.e. skull

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14
Q

what is syndesmosis

A

ligaments attach permitting some movement

i.e. radius and ulna or tibia and fibula

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15
Q

what is gomphosis

A

projection from one bone will fit into socket with stability gained from ligament

i.e. teeth

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16
Q

What are cartilaginous joints

A

slightly mobile joint held together with cartilage

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17
Q

what are the types of cartilagnious joints

A

symphyeses and synchondroses

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18
Q

what is symphyese

A

cartilaginous joints connected via pad/disk of fibrocartilage allowing for shock absorber

i.e. spine/pubic symphysis

19
Q

What is synchondroses

A

bones connected via hyaline cartilage

i.e.ribs or growth plates in kids

20
Q

what are the types of cartilage

A

hyaline, fibrous and elastic cartilage

21
Q

what is hyaline cartilage

A

compressive viscoelastic behavior, shear at surface

22
Q

what is fibrous cartilage

A

compressive, tensile hoop, and shear stresses.

23
Q

what is elastic cartilage

A

highly elastic and durable - high cell density, elastin fibers

24
Q

what type of joints are synovial joints

A

diarthrosis

25
Q

what are diarthrosis joints

A

allow the greater mobility

a type of synovial joints

26
Q

what is the joint capsule made of

A

dense, white fibrous tissue that is highly vascular

27
Q

how is the joint capsule attached

A

attached to the periosteum via Sharpey fibers

28
Q

what is the inner layer of the joint capsule

A

synovial membrane

29
Q

how is the synovial membrane attached

A

adheres to the nonarticular aspect of the bone

30
Q

what are the parts of the synovial membrane

A

outer aspects and inner aspect

31
Q

How do you describe the outer aspect of the synovial membrane and what does it contain

A

vascular, subintima layer that contains leukocytes, elastin and fibrous tissue

32
Q

what does the inner layer of the synovial membrane contain

A

synovial cells - type A (phagocytes) and type B (secrete hyaluroneate

33
Q

what is the inner layer of the synovial membrane also known as

A

the intima

34
Q

what is the intima

A

the inner layer of the synovial membrane

35
Q

what is the joint cavity

A

area within the joint capsule and synovial membrane in which articular bones are bathed in synovial fluid

36
Q

what is synovial fluid

A

highly filtrated plasma with bound hyaluronate that lubricates the joint

37
Q

what brings nutrients to the articular catilage of the bones

A

synovial fluid

38
Q

what does the synovial fluid contain

A

phagocytes

39
Q

what is articular cartilage made up of

A

cross-linked collagen fibers and chondrocytes and has a high water content

40
Q

what is the benefit of the articular cartilage

A

decreases joint friction and shares the forces put on the joint

41
Q

what pumps fluid into the cartilage and reabsorbes the synovial fluid

A

proteoglycans

42
Q

What are the zones of articular cartilage

A

superficial, transitional and deep

43
Q

what is the tidemark

A

area where bone and cartilage come together

44
Q

What does a condyloid joint allow for

A

similar to ball and socket but not as deep

allows for flexion/extension, abduction/adduction and circumduction

i.e. wrists and MCP joints

CABS - MSK (12 decks)

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