joints

Question 1

what are the 3 main types of joints?

Answer 1

fibrous, cartilaginous, synovial

Question 2

what are the types of synovial joints?

Answer 2

• ball and socket
• gliding
• hinge
• pivot
• saddle
• ellipsoid

Question 3

ball and socket joint

Answer 3

the “ball” of one bone fits into the “socket” of another
(e.x. shoulder)

Question 4

gliding joint

Answer 4

connects flat or slightly curved bone surfaces against one another
(e.x. between tarsels)

Question 5

hinge joint

Answer 5

a convex portion of one bone fits into a concave portion of another
(e.x. between ulna and humerus)

Question 6

pivot joint

Answer 6

a rounded point of one bone fits into a groove of another
(e.x. between the first two vertebrae in the neck)

Question 7

saddle joint

Answer 7

flexion-extension or abduction-adduction
(e.x. the carpometacarpal articulation of the thumb)

Question 8

ellipsoid joint

Answer 8

allows movements in all angular motions (e.x wrist)

Question 9

articulating cartilage

Answer 9

located on the ends of bones that come in contact with one another

Question 10

joint capsule

Answer 10

consists of the synovial membrane and fibrous capsule

Question 11

joint cavity

Answer 11

filled with synovial fluid, which acts as a lubricant for the joint

Question 12

bursae

Answer 12

the small fluid sacs found at the friction points

Question 13

intrinsic ligaments

Answer 13

thick bands of fibrous connective tissue that help thicken and reinforce the joint capsule