Structure of Synovial Joints

Question 1

Articulating Cavity

Answer 1

a space between articulating bones

Question 2

Articulating Cartilage

Answer 2

surface of the bone within synovial joint covered with a layer of hyaline cartilage. (provides smooth slippery surface between bones)

Question 3

Articular Capsule

Answer 3

a double layered membrane that surrounds a synovial joint, encloses articular cavity, and unites the articulating bones.

Question 4

Ligament

Answer 4

thickened fibers of the capsules dense irregular connective tissue runs in parallel bundles.

Question 5

Articular Fat Pads

Answer 5

the synovial membrane includes an accumulation of of adipose tissue

Question 6

“Double Jointed”

Answer 6

extra flexibility in the capsule and ligament (people don’t have more joints, just more flexibility)

Question 7

Synovial Fluid

Answer 7

clear or yellow-colored fluid which forms a thin film over surfaces of the articular capsule:

Question 8

What synovial fluid does

Answer 8

• absorbs shock
• reduce friction by lubricating joints
• supplies oxygen and nutrient and
  removes CO2 from cartilage

Question 9

Accessory Ligament

Answer 9

(extracapsular ligaments) lie outside the articular capsule/ (intracellular ligaments) lie inside the articular cartilage

Question 10

Labrum

Answer 10

ring like fibrous cartilage that extends from the socket of a ball-and-socket joint to deepen them and increase contact area