JOINTS OF THE UPPER LIMB

Question 1

what joints are responsible for the movement of the pectoral girdle?

Answer 1

1. sternoclavicular joint
2. glenohumeral joint
3. acromioclavicular

Question 2

what type of joint is the sternocavicular?

Answer 2

sadle type synovial

functions as a ball and socket

Question 3

what type of joint is the acromioclavicular?

Answer 3

plane synovial

Question 4

what time of joint is the glenohumeral?

Answer 4

ball and socket synovial

Question 5

what deepens the glenoid cavity?

Answer 5

glenoid labrum

Question 6

what are the rotator cuff muscles and what do they do to the glenohumeral joint?

Answer 6

supraspinatus, infraspinatus, teres minor, subscapularis

hold humeral head in place

Question 7

what are the ligaments of the glenohumeral joint?

Answer 7

1. glenohumeral ligaments
2. coracohumeral ligament
3. transverse humeral ligament
4. coraco-acromial ligament

Question 8

what are the movements of the pectoral girdle?

Answer 8

1. flexion
2. extension
3. abduction
4. medial (internal) rotation
5. lateral (external) rotation

Question 9

what type of joint is the elbow?

Answer 9

hinge type synovial

Question 10

what makes up the elbow?

Answer 10

trochlea and capitulum of the humerus articulate with the trochlear notch of the ulna and the head of the radius

Question 11

what are the ligaments of the elbow joint?

Answer 11

1. radial collateral ligament
2. anular ligament of the radius
3. ulnar collateral ligament

Question 12

what movements occur at the elbow?

Answer 12

1. flexion

2. extension

Question 13

what is the carrying angle?

Answer 13

170 degrees (10-15 degrees away from body)
forearm angle from the body when something is carried

Question 14

what type of joint is the proximal radio-ulnar joint?

Answer 14

pivot type synovial

Question 15

what type of joint is the distal radio-ulnar joint?

Answer 15

pivot type synovial

Question 16

what movements occur at the elbow and radio-ulnar joints?

Answer 16

1. flexion
2. extension
3. pronation
4. supination

Question 17

what is the wrist joint and what type is it?

Answer 17

radiocarpal joint
condyloid
synovial joint

Question 18

what joints exist in the palm and what type is it?

Answer 18

intercarpal joint
plane
synovial joint

Question 19

what joints exist around the metacarpals and what type are they?

Answer 19

1. carpometacarpal joints
   plane
   synovial joint
2. intercarpal joints
   plane
   synovial joint

Question 20

what joints exist around the phalanges and what type are they?

Answer 20

1. metacarpophalangeal joints
   condyloid *
   synovial joints
2. interphalangeal joints
   hinge *
   synovial joint