Articulations Flashcards

(37 cards)

1
Q

An Articulation is

A

Where two or more bones meet

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2
Q

Structural classification of joints

A

Fibrous
Cartilaginous
Synovial

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3
Q

Fibrous joint are held together by

A

collagen fibers

Physical thing that holds the bones together

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4
Q

Cartilaginous joints are held together by

A

Held together by cartilage

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5
Q

Synovial joints are held together by

A

a joint capsule (space between your bones)

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6
Q

Functional classification of joints

Amount of movement at the joint

A

Synarthroses
Amphiarthroses
Diarthroses

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7
Q

Synarthroses allow

A

No movement allowed

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8
Q

Amphiarthroses allow

A

Allow slight movement

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9
Q

Diarthroses allow

A

Freely moveable joints

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10
Q

Diarthroses, Amphiarthroses, Synarthroses are all

A

Synovial joints

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11
Q

3 Fibrous joints are

A

Sutures
Syndesmosis
Gomphoses

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12
Q

Sutures are

A

Where bones have fused together, your suture lines are formed by fibers and are not movable so they are synarthrotic in adults

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13
Q

Attributes of Syndesmosis

A

Held together by ligaments
Are fibrous because made of collagen fibers
Slight movement so they are amphiarthrotic

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14
Q

Attributes of Gomphoses

A

Joints between the teeth and the alveolar socket

Connected by periodontal ligament

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15
Q

Types of Cartilaginous joints

A

Synchondroses

Symphyses:

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16
Q

Synchondroses are connected by

A

hyaline cartilage and do not move

17
Q

Symphyses are connected by

A

fibrocartilage and allow slight movement

18
Q

Example of Synchondroses

A

epiphyseal plate and costal cartilages

19
Q

Example of Symphyses

A

pubic symphysis and intervertebral discs

20
Q

Most of this in our body

A

Synovial joints

21
Q

Synovial joints are

A

All diarthroses

22
Q

Articulating bones are separated by

A

a fluid-containing joint cavity

23
Q

Characteristics of synovial joints

A
Joint articular capsule
Synovial fluid
Articular cartilage
Reinforcing ligaments
Joint cavity
24
Q

Joint articular capsule

A

Surrounds the space holding the bones together

25
Synovial fluid function
Lubricates joints | Fills the joint cavity
26
Articular cartilage is
Hyaline cartilage covering the epiphyses
27
Reinforcing ligaments are
Syndesmoses Allow a little of movement And help out synovial joints as well
28
Joint cavities are
space between the bones
29
Optional friction-reducing structures
Bursae Tendon sheath Fatty pads Menisci
30
Bursae
Synovial fluid filled sac
31
Tendon sheath
Fluid filled pouch surrounding a tendon | Still contains some synovial fluid
32
Fatty pads
Adipose tissue within certain joints that help to protect against compression and friction as there’s movement at the joint
33
Menisci
Help cushion knee joint | Fibrocartilage pads
34
Stability of synovial joints
Articular surfaces Ligaments Muscle tone
35
Articular surfaces
How well the bones fit together - the shape Stable: head of femur into coxal bone (acetabelum) Unstable: glenoid fossa and head of humerus
36
Attributes Ligaments
Help hold bones together The less stability the more ligaments The greater the range of motion of the joint the weaker it becomes
37
Muscle tone
Tendons can slightly contribute to joint stability when you contract the muscles