Synovial Joints-classifications Flashcards

1
Q

How many types of synovial joints are there?

A

6

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2
Q

What are the names of the synovial joints?

A

Plane
Hinge
Pivot
Condylar
Saddle
Ball-and-socket

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3
Q

How are plane joints described?

A

flat or slightly curved articular surfaces

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4
Q

What kind of action is seen in plane joints?

A

side-side or back-forth movement

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5
Q

What is another name for plane joints?

A

gliding

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6
Q

What kind of axial are plane joints?

A

non-axial

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7
Q

What are some examples of plane joints?

A

-sternocostal joint (2nd-7th ribs)
-intercarpal and intertarsal joints

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8
Q

How are hinge joints described?

A

convex surface of one bone fits into concave surface of other bone

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9
Q

What kind of action is seen in hinge joints?

A

-angular opening and closing movement
(flexion/extension)

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10
Q

What kind of axial are hinge joints?

A

monoaxial

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11
Q

What are some examples of hinge joints?

A

humerus and ulna (elbow joint)
ankle and knee joint (less typical)
interphalangeal joints

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12
Q

How are pivot joints described?

A

-rounded or pointed surface of a bone articulates with a ring formed by another bone and a ligament

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13
Q

What kind of action is seen in pivot joints?

A

rotation

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14
Q

What kind of axial are pivot joints?

A

monoaxial (longitudinal axis)

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15
Q

What are some examples of pivot joints

A

-proximal radio-ulnar joint
-atlanto axial joint of the vertebral column

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16
Q

How are condyloid joints described?

A

-convex oval shaped bones fit into oval shaped depression of other bone

17
Q

What kind of action is seen in condyloid joints?

A

flexion/extension
abduction/adduction

18
Q

What kind of axial are condyloid joints?

A

biaxial

19
Q

What are some examples of condyloid joints?

A

-radius with scaphoid/lunate (wrist)
-metacarpophalangeal (knuckles)

20
Q

How are saddle joints described?

A

-depression shaped as a saddle receives fitting bone

21
Q

What kind of action is seen in saddle joints?

A

biaxial

22
Q

What is an example of a saddle joint?

A

carpometacarpal joint of thumb

23
Q

How are ball and socket joints described?

A

ball-like surface fits into cup-like depression

24
Q

What kind of action is seen in ball and socket joints?

A

rotation
flexion/extension
adduction/abduction

25
Q

What kind of axial are saddle joints?

A

biaxial

26
Q

What kind of axial are ball and socket joints?

A

multi- or poly- axial

27
Q

What are some examples of ball and socket joints?

A

humero-scapular joint
hip joint