1.1.7 - 1.1.10 - Types of joints Flashcards
1
Q
Define the term joint
A
A joint occurs where two bones articulate (where they meet)
2
Q
What are the different types of synovial joints?
A
Gliding, hinge, pivot, condyloid, saddle, ball-and-socket
3
Q
What are gliding joints?
A
- move against each other on a single plane
- major gliding joints examples are intervertebral joints and bones of wrists and ankles
4
Q
What are hinge joints?
A
- move on just one axis
- allow for flexion and extension
- major hinge joints examples are elbow and finger joints
5
Q
What are pivot joints?
A
- provides rotation
- at the top of the spine, the atlas and axis form a pivot that allows for the rotation of the head
6
Q
What are condyloid joints?
A
- allows circular motion, flexion, and extension
- wrist joint between the radius and the carpal bones is an example of a condyloid joint
7
Q
What are saddle joints?
A
- allows for flexion, extension, and other movements, but no rotation
- thumb saddle joint lets thumb cross over the palm, making it opposable
8
Q
What are ball-and-socket joints?
A
- freely moving joint that can rotate on any axis
- hip and shoulder joints are examples of ball and socket joints
9
Q
BE ABLE TO LABEL
A
THE STRUCTURE OF A SYNOVIAL JOINT
10
Q
Cartilage
A
Shock absorber
11
Q
Synovial membrane
A
Makes synovial fluid
12
Q
Synovial fluid
A
Lubricates and reduces friction
13
Q
Bursae
A
Reduce friction, facilitate movement
14
Q
Meniscus
A
Shock absorber, increase stability
15
Q
Ligaments
A
Stability
