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Flashcards in Articulations Deck (37)
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1
Q

An Articulation is

A

Where two or more bones meet

2
Q

Structural classification of joints

A

Fibrous
Cartilaginous
Synovial

3
Q

Fibrous joint are held together by

A

collagen fibers

Physical thing that holds the bones together

4
Q

Cartilaginous joints are held together by

A

Held together by cartilage

5
Q

Synovial joints are held together by

A

a joint capsule (space between your bones)

6
Q

Functional classification of joints

Amount of movement at the joint

A

Synarthroses
Amphiarthroses
Diarthroses

7
Q

Synarthroses allow

A

No movement allowed

8
Q

Amphiarthroses allow

A

Allow slight movement

9
Q

Diarthroses allow

A

Freely moveable joints

10
Q

Diarthroses, Amphiarthroses, Synarthroses are all

A

Synovial joints

11
Q

3 Fibrous joints are

A

Sutures
Syndesmosis
Gomphoses

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

13
Q

Attributes of Syndesmosis

A

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

14
Q

Attributes of Gomphoses

A

Joints between the teeth and the alveolar socket

Connected by periodontal ligament

15
Q

Types of Cartilaginous joints

A

Synchondroses

Symphyses:

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
Q

Synovial fluid function

A

Lubricates joints

Fills the joint cavity

26
Q

Articular cartilage is

A

Hyaline cartilage covering the epiphyses

27
Q

Reinforcing ligaments are

A

Syndesmoses
Allow a little of movement
And help out synovial joints as well

28
Q

Joint cavities are

A

space between the bones

29
Q

Optional friction-reducing structures

A

Bursae
Tendon sheath
Fatty pads
Menisci

30
Q

Bursae

A

Synovial fluid filled sac

31
Q

Tendon sheath

A

Fluid filled pouch surrounding a tendon

Still contains some synovial fluid

32
Q

Fatty pads

A

Adipose tissue within certain joints that help to protect against compression and friction as there’s movement at the joint

33
Q

Menisci

A

Help cushion knee joint

Fibrocartilage pads

34
Q

Stability of synovial joints

A

Articular surfaces
Ligaments
Muscle tone

35
Q

Articular surfaces

A

How well the bones fit together - the shape
Stable: head of femur into coxal bone (acetabelum)
Unstable: glenoid fossa and head of humerus

36
Q

Attributes Ligaments

A

Help hold bones together
The less stability the more ligaments
The greater the range of motion of the joint the weaker it becomes

37
Q

Muscle tone

A

Tendons can slightly contribute to joint stability when you contract the muscles