Types Of Joints And Associated Movements

Question 1

What are the types of joints?

Answer 1

Gliding
Hinge
Pivot
Ellipsoid
Saddle
Ball and socket

Question 2

How does the gliding joint work and examples?

Answer 2

Manubrium and clavicle
Can move in each plane L,R,U,D
Sacro-iliac joint

Question 3

How does the hinge joint work and examples?

Answer 3

Luna and humerus
Up and down
Elbow and knee

Question 4

How does the pivot joint work and examples?

Answer 4

Atlas and axis
Rotate 360*
Prox radio-ulnar joints

Question 5

How does the ellipsoid joint work and examples?

Answer 5

Radius, ulna and scaphoid bone
Can seperate between the bones, and rotate 360*
Radiocarpal joints
Metacarpophalangeal joint

Question 6

How does the saddle joint work and examples?

Answer 6

Trapezium and metacarpal bone
First carpometacarpal joints
Knuckle
Can separate can move forward and back

Question 7

How does the ball and socket joint work and examples?

Answer 7

Humerus and scapula
Rotate 360*
Hip and shoulder joint

Question 8

What is the structure of the synovial joint?

Answer 8

Tendon: joins muscle to bone
Synovial mem: prods synovial fluid
Synovial fluid: lubricates joint
Ligament: joins bone to bone
Hyaline cartilage: reduces friction shock absorber
Fibrous joint capsule

Question 9

What is the meaning of proximal, distal, medial and lateral?

Answer 9

Proximal: top of limb
Distal: bottom of limb
Medial: toward the median plane
Lateral: away from the median plane

Question 10

What is the meaning of flexion, protraction, extension and retraction?

Answer 10

Flexion: folding limb
Protraction: moving limb forward
Extension: stretching limb
Retraction: moving limb backwards

Question 11

What is the meaning of abduction and addiction?

Answer 11

Abduction: moving away from the median plane
Addiction: moving towards the median plane

Question 12

What is the meaning of cranial, dorsal, central and caudal?

Answer 12

Superior head, posterior back, anterior front and inferior bottom