Categories Of Joints

Question 1

Uniaxial

Answer 1

• bone moves in one plane
• ex. Wrist bones and elbow

Question 2

Biaxial

Answer 2

• bone moves in two planes
• ex. Fingers

Question 3

Multiaxial

Answer 3

• bone moves in more than two planes
• ex. Shoulder and hips

Question 4

Plane joint

Answer 4

• non or uniaxial
• ex. Carpels I’m the wrist

Question 5

Hinge joint

Answer 5

• uniaxial
• ex. Elbow

Question 6

Pivot joint

Answer 6

• uniaxial
• ex. Neck and skull

Question 7

Condylar

Answer 7

• biaxial
• ex. Metacarpals and the phalanx

Question 8

Saddle joint

Answer 8

• biaxial
• ex. Base of thumb

Question 9

Ball and socket joint

Answer 9

• multiaxial
• ex. Femur and pelvis/hip

Question 10

1st class lever

Answer 10

• resistance on one end, fulcrum in the middle, effort pushing from the top onto the other end
• il. teeter totter or scissors
• ex. Head

Question 11

Second class lever

Answer 11

• fulcrum on the end, resistance in the middle, and effort pushing up on the other end
• il. Wheelbarrow
• ex. Raising onto your toes and lifting your heel

Question 12

Third class lever

Answer 12

• resistance on the end, effort in the middle, and fulcrum on the end
• il. Tweezers
• ex. Curl of the bicep and forearm