Lecture 10 Flashcards
1
Q
Define Bursae.
A
A cavity filled with synovial fluid.
2
Q
Define Uniaxial.
A
If a joint can only move through one plane.
3
Q
Define Biaxial.
A
If a joint runs through 2 planes.
4
Q
What factors determine the range of movement of a joint?
A
- Bone end shape
- Ligament location and length
- body surface contact
5
Q
Name the 7 types of synovial joint shapes.
A
- Hinge
- Pivot
- Ellipsoid
- Saddle
- Condylar
- Plane
- Ball and Socket
6
Q
Define Multiaxial.
A
Can run through sagittal, coronal and transverse plane.
7
Q
Describe the Hinge joint.
A
- Uniaxial
- Flexion and extension
e. g. elbow
8
Q
Describe a pivot joint.
A
- Uniaxial
- Supination and pronation (rotation)`
e. g. radioulnar joints (notches in the ulna allowing for the radius to flip over).
9
Q
Describe the saddle joint.
A
Where the cavity of one bone sits inside the cavity of another bone.
- flexion, extension, adduction and abduction (hence also circumduction).
- Biaxial
- Obligatory rotation- opposition (being able to touch each of your fingers with your thumb). e.g. thumb joint
10
Q
Describe the ellipsoid joint.
A
- Biaxial
- Able to flex, extend, adduct and abduct. (circumduction)
- e.g. wrist joint (radiocarpal joint).
11
Q
Describe the condylar joint.
A
- Biaxial
- Flex, extend and rotate when flexed (knee).
12
Q
Describe the plane joint.
A
- multiaxial
- sliding and gliding
- e.g. intercarpal and intertarsal joints.
13
Q
Describe the ball and socket joint.
A
- Multiaxial
- e.g. hip joint and shoulder joint
- flexion, extension, adduction and abduction (circumduction).
- Rotation
