Joint Surfaces

Question 1

Articulations

Answer 1

Appear smooth on dried bones

Question 2

Sutures

Answer 2

Jagged, irregular, interlocking union of skull bones stuck together by fibrous tissues

Question 3

Symphysis

Answer 3

Contact surfaces bound by fibrous cartilage which only allows a limited degree of movement. (Ex: Vertebrae, the two pelvic bones)

Question 4

Freely movable joints

Answer 4

• Ball and Socket (femur/acetabulum)
• Two flat surfaces sliding on each other (wrist/ankle)
• Door on hinges (joint b/w humerus & ulna)
• Bones on pivot or rotate on each other (proximal radius/humerus & ulna)