Movements of the upper limb

Question 1

What movements are allowed in the glenohumeral joint/shoulder?

Answer 1

• flexion and extension
• abduction and adduction
• medial and lateral rotation of the humerus
• Combination of these movements = circumduction

Question 2

What are the movements of the shoulder girdle?

Answer 2

• retraction and protraction

- elevation and depression

Question 3

What are the movements at the elbow joint/forearm?

Answer 3

• humeroulnar and humeroradial joints allows for flexion and extension.
• humeroradial and proximal radioulnar joint allows for pronation and supination (does not occur exactly at elbow but at nearby radioulnar joints)

Question 4

What are the movements at the radiocarpal joint/wrist?

Answer 4

• flexion and extension
• abduction and adduction
• successive combination results in circumduction

Question 5

What are the movements of the fingers?

Answer 5

• flexion and extension

- adduction and abduction

Question 6

What are the movements of the thumb?

Answer 6

• flexion and extention
• adduction and abduction
• opposition of thumb

Question 7

What movements are rotator cuff muscles involved in?

Answer 7

• Supraspinatus: abducts and stabilises arm at glenohumeral joint
• Infraspinatus and teres minor: laterally rotates, transversely abducts and stabilises arm at glenohumeral joint
• Subscapularis: medially rotates and stabilises arm at glenohumeral joint

Question 8

What movements is the deltoid involved in?

Answer 8

• Abduction, flexion and extension, rotation

Question 9

What movements are the biceps involved in?

Answer 9

• Flexes forearm at elbow joint (main flexor is brachialis)

- Supinates forearm at radioulnar joint

Question 10

What movements are the triceps involved in?

Answer 10

• Extends forearm at elbow joint

Question 11

What movements is the coracobrachialis involved in?

Answer 11

• Adducts and flexes arm at the glenohumeral joint

Question 12

Which muscles are involved in flexion of hand?

Answer 12

• flexor carpi radialis (also abduction), flexor carpi ulnaris (also adduction), pronator teres, palmaris longus

Question 13

Which muscles are involved in flexion of 4 digits?

Answer 13

• flexor digitorum superficialis and flexor digitorum profundus
• Very powerful

Question 14

Which muscle is invovled in flexion of thumb?

Answer 14

• flexor pollicis longus

Question 15

What movement is the brachioradialis muscle involved in?

Answer 15

• Main muscle that flexes forearm at elbow joint

Question 16

Which muscles are involved in extension of wrist?

Answer 16

• Extensor carpi radialis longus, extensor carpi radialis brevis, extensor carpi ulnaris

Question 17

Which muscles are involved in extension of digits?

Answer 17

• Extensor digitorum communis, extensor digiti minimi

Question 18

Which muscle extends the index finger?

Answer 18

• extensor indicis

Question 19

Which muscles extends the thumb?

Answer 19

• extensor pollicis longus and extensor pollicis brevis

Question 20

Which muscle abducts the thumb?

Answer 20

• abductor pollicis longus

Question 21

What movement is involved with the supinator muscle?

Answer 21

• supination of forearm at radioulnar joint