Joints

Question 1

articular surfaces of the elbow joint

Answer 1

capitulum and trochlea of the humerus
- head of the radius (articulates with the capitulum of humerus)
trochlear notch of ulna (articulates with the trochlea of the humerus)

Question 2

ligaments involved in the elbow joint:

Answer 2

the fibrous capsule is weak anteriorly and posteriorly but thickened laterally to form: -
- lateral (radial) collateral ligament
medial (ulnar) collateral ligament, which consists of 3 bands: anterior, posterior and oblique)

Question 3

elbow joint - type?

Answer 3

synovial hinge

Question 4

movements of the elbow joint

Answer 4

flexion/extension

Question 5

articular surfaces of proximal radioulnar joint

Answer 5

• Head of radius
• Radial notch of the ulna

Question 6

ligament involved in prox. radioulnar j

Answer 6

Anular ligament (continuation of fibrous capsule of the elbow joint)

Question 7

proximal radioulnar joint - type

Answer 7

synovial pivot

Question 8

proximal radioulnar joint - movements

Answer 8

pronation/supination

Question 9

articular surfaces of sternoclavicular j

Answer 9

the sternal end of the clavicle and clavicular notch of the manubrium sterni and a small part of the costal cartilage of the first rib

Question 10

ligaments involved in sternoclavicular j

Answer 10

• anterior and posterior sternoclavicular ligaments
• Interclavicular ligament
  costoclavicular ligament

Question 11

sternoclavicular j - type

Answer 11

synovial saddle - but functions as a ball and socket

Question 12

acromioclavicular j articular surfaces

Answer 12

Found at acromial end of clavicle and at the acromion of the scapula

Question 13

acromioclavicular j ligaments

Answer 13

superior acromioclavicular ligament

Question 14

acromioclavicular j type

Answer 14

plane

Question 15

acromioclavicular j action

Answer 15

gliding movement

Question 16

what is the most weak part of glenohumeral j

Answer 16

inferior

Question 17

articular surfaces of glenohumeral j

Answer 17

• Glenoid cavity on the scapula deepened by the glenoid labrium
  Head of humerus

Question 18

ligaments involved in glenohumeral j

Answer 18

• Intrinsic ligaments of the shoulder joint are formed as a thickening of the joint fibrous capsule and support the shoulder joint:
• coracohumeral ligament
• glenohumeral ligament anteriorly with three fibrous bends: superior, middle and inferior
• transverse humeral ligament which keeps long head of biceps muscle in the bicipital groove
  Extrinsic ligament coracoacromial together with the smooth inferior surface of the acromion and coracoid process form the osseoligamentous arch that overlies the head of the humeru

Question 19

type of joint - glenohumeral

Answer 19

ball + socket

Question 20

movements of glenohumeral j

Answer 20

• Range of movements is great while stability of the joint is weak and compromised on account of mobility
• Abduction
• Adduction
• Flexion
• Extension
• Circumduction
• Medial rotation
  Lateral rotation

Question 21

distal radioulnar articular surfaces

Answer 21

head of ulna, ulnar notch of distal radius

Question 22

distal radioulnar joint type

Answer 22

pivot

Question 23

movemnet of distal radioulnar j

Answer 23

pronation/supination

Question 24

articular surfaces of elbow j

Answer 24

captiulum and trochlea of humerus, head of radius, trochlear notch of ulna

Question 25

ligaments involved in elbow j

Answer 25

lateral (radial) collateral lig, medial (ulnar) collateral

Question 26

elbow j type

Answer 26

synovial hinge

Question 27

elbow j movements

Answer 27

flexion/extension

Question 28

prox radioulnar j articular surfaces

Answer 28

head of radius, radial notch of ulnar

Question 29

ligament involved in prox radioulnar j

Answer 29

annular lig

Question 30

prox. radioulnar j type

Answer 30

synovial pivot

Question 31

prox. radioulnar j movements

Answer 31

pronation/supination

Question 32

wrist j articular surfaces

Answer 32

- Distal radius articulates with the scaphoid and lunate carpal bones, while ulna does not contribute to the wrist joint and it has artiular disc separating it from the carpal bones

Question 33

wrist j ligaments

Answer 33

igaments are thickening of the fibrous capsule: - anterior – palmar radiocarpal ligament - posterior – dorsal radiocarpal ligament - ulnar and radial collateral ligaments

Question 34

wrist j type

Answer 34

synovial condyloid

Question 35

wrist j action

Answer 35

Flexion, extension, abduction, adduction and circumduction

Question 36

intercarpal j type

Answer 36

synovial plane

Question 37

intercarpal j action

Answer 37

Small amount of gliding movement Involved in extension and abduction of the hand, facilitate movements at the radiocarpal joint

Question 38

carpometacarpal j articular surfaces

Answer 38

Thumb: trapezium and base of the 1st metacarpal bone

Question 39

Carpometacarpal j ligaments

Answer 39

Anterior and posterior carpometacarpal ligaments and interosseous ligaments

Question 40

carpometacarpal j type

Answer 40

Synovial plane Thumb: saddle synovial = wide range of movement

Question 41

carpometacarpal j action

Answer 41

Gliding movements of the medial 4 metacarpal bones. Movements increase medially