Section 6 Flashcards
1
Q
What are the 5 characteristics of diarthroses joints?
A
- Freely moveable joints
- Have a joint cavity called the synovial cavity
- Hyaline cartilage covers joint surfaces of articulating bones
- synovial membranes encases the joint
- Additional ligaments grow between joints
2
Q
Examples of diarthroses include??
A
Ball and socket Hinge Pivot Ellipsoidal Saddle Gliding
3
Q
Ex of ball and socket:
A
Shoulder and hip
4
Q
Ex of hinge:
A
Elbow, knee, and ankle
5
Q
Ex of pivot:
A
Atlas and axis, radius and ulna
6
Q
Ex of ellipsoidal:
A
Wrist (radius and carpals)
7
Q
Ex of a saddle;
A
Thumb
8
Q
Ex of gliding:
A
Carpal bones, sacrum and illium (sacroiliac joints)
9
Q
What are the 3 characteristics of synarthroses?
A
- Allow little or no movement
- No joint cavity
- Tissue (fibrous, cartilage, or bone) grows between articulating surfaces
10
Q
Examples of synarthroses?
A
- Cartilaginous- between vertebrae (some bending and twisting)
- Fibrous- sutures of the skull; no movement
11
Q
Movement of joints?
A
Flexion Extension Hyperextension Abduction Adduction
12
Q
Bending of a limb.
A
Flexion
13
Q
What’s extension?
A
Straightening of a limb
14
Q
The maximum extension of an arm or leg beyond the plane of the body
A
Hyperextensions
15
Q
Adduction is what?
A
To draw toward the midline of body
