joints

Question 1

what are synovial joints?

Answer 1

moveable joints knee, elbow etc

Question 1

PLANAR JOINTS def

Answer 1

-Surfaces of the articulating
bones are flight or slightly
curved

-Allow for gliding movements;
back-and-forth, side-to-side

-etc between carpal’s/tarsals

Question 2

PIVOT JOINTS def

Answer 2

-A cylinder shaped bone
rotates inside another bone
that forms a ring around it

• Allows rotational movement
• etc proximal and distal radioulnar joint

Question 3

HINGE JOINTS def

Answer 3

• The convex surface of one
  bone fits into the concave
  surface of another bone
• Allow flexion and extension
  movement
• etc elbow,knee, ankle and interphalangeal joint

Question 3

CONDYLOID/ellipsoidal
joints def

Answer 3

• oval shaped end of one bone
  fitting into a similarly oval shaped
  hollow of another bone
• Allows flexion - extension,
  abduction - adduction,
  circumduction
• etc radiocarpal joint, metacarpal joint

Question 4

SADDLE JOINTS def

Answer 4

• bones resembles a horses
  saddle convex and concave bone
  -E.g. 1st carpometacarpal join

Question 5

BALL AND SOCKET JOINTS def

Answer 5

-Rounded ball end of one bone,
fits into a cup socket of another
bone

• Allows flexion-extension,
  abduction-adduction and
  rotation
• E.g. shoulder and hip joints