Articular System

Question 1

Why are joint important

Answer 1

Points where bones connect, play a crucial role in movement. Are also points of great stress

Question 2

What are the three types of joints from most to least functional

Answer 2

Synovial joints: freely moving
Cartilaginous joints: slightly moveable
Fibrous joints: immovable

Question 3

What are the types of synovial joints & examples?

Answer 3

• Ball and socket joints: hip, shoulder
• Gliding joint(or plane or arthrodial): tarsals, carpals
• Hinge joints: movement in 1 plane, phalanges
• Pivot joints: atlantoaxial articular joint, vertebrae
• Saddle joints: movement in 2 planes, thumb joint
• Ellipsoid joint: 2 planes, wrist

Question 4

Define Uni-axial, bi-axial, tri-axial

Answer 4

Uni: moves in 1 plane
Bi: moves in 2 planes
Tri: moves in 3 planes

Question 5

Characteristics of the synovial joint

Answer 5

Articular cartilage: allows for smooth movement
Joint capsule: fibrous structure,