Download Elbow and Forearm

Elbow and Forearm
1. In regard to the vascular supply of the forearm
a. The posterior interosseous artery ends in the dorsal carpal anastomosis – anastomosis w/ anterior
(basically runs out)
b. The radial artery crosses the radial nerve distally
c. The ulnar artery supplies the nutrient arteries to both radius and ulna
d. The common interosseous artery is a branch of the radial artery - ulna
e. Both anterior and posterior carpal arches lie at the level of the wrist joint – dorsal is over second
row of carpal bones
2. Regarding the cubital fossa
a. The contents are biceps tendon, brachial artery, median nerve and ulnar nerve
b. The brachial artery divides at the level of the radial neck <=
c. The roof is formed by the superficial fascia of the forearm
d. The bicipital aponeurosis lies on the lateral side
e. The floor is formed by the biceps muscle
3. Muscles supplied by the median nerve include all except
a. Palmaris longus
b. Flexor digitorum superficialis
c. Adductor pollicis <=
d. Pronator teres
e. Flexor carpi radialis
4. the contents of the cubital fossa from medial to lateral side includes
a. median nerve, biceps tendon, brachial artery
b. biceps tendon, brachial artery, median nerve
c. median nerve, brachial artery, biceps tendon <=
d. ulnar nerve, radial artery, biceps tendon
e. ulnar nerve, brachial artery, biceps tendon
5. Regarding the elbow joint
a. The medial band of the ulnar collateral is the strongest portion of the ulnar collateral ligament –
anterior cord-like band, the oblique deepens socket of trochlea, the posterior is fan-like and weakest.
There is no medial band, the complex is the medial collateral = ulna
b. An increase in the carrying angle can cause ulnar nerve palsy
c. The capsule of the elbow joint is attached below the coronoid and radial fossae – anteriorly and
posterior is is proximal to the coronoid and olecranon fossa
d. The distal portion of the capitulum can be seen from the posterior aspect of the humerus
e. The radial collateral ligament attaches to proximal radius
6. The elbow joint
a. Is a fibrocartilaginous joint
b. Capsule is attached to the radius
c. Fossae immediately above capitellum and trochlea receive head of radius and coronoid process of
humerus respectively
d. Has a carrying angle of 170 degrees in full extension
e. Is innervated by the radial nerve <= radial, musculocutaneous and ulna
7. With regard to the median nerve
a. It crosses posterior to the brachial artery to lie medial in the cubital fossa – starts lat, crosses ant,
ends med
b. Its palmar cutaneous branch arises proximal to the carpal tunnel <=
c. It divides into lateral and medial branches distal to the carpal tunnel – it does, but also the
recurrent
d. It is the sole nerve supply to the flexors of the forearm
e. ?
8. Elbow capsule attachments include:
a. Medial and lateral epicondylar
b. Radial head
c. Common flexor origin
d. Annular ligament of radioulnar joint <=
e. All of the above
9. The elbow joint
a. Is supplied exclusively by the radial nerve - rad, ulnar and MC… not the median
b. Permits flexion-extension and pronation-supination
c. Has a capsule which attaches in part to the radius
d. Communicates with the superior radio-ulnar joint <=
e. None of the above
10. The cephalic vein
a. Arises in the region of the anatomical snuffbox <=
b. At the elbow is deep to the lateral cutaneous nerve of the forearm
c. Terminates by joining the brachial vein
d. Is medial to biceps in the arm
e. Has no valves
11. In the antecubital fossa
a. The ulnar nerve is on the medial side
b. The median nerve is lateral to the brachial artery
c. The radial nerve is on the lateral side <=
d. All the superficial veins are deep to the cutaneous nerves
e. The brachial artery is lateral to the tendon of biceps
12. Which of the following muscles does NOT arise from the common extensor origin?
a. Extersor carpi radialis brevis
b. Extensor digitorum comminis
c. Extensor carpi radialis longus <= lateral supraepicondylar ridge (with brachioradialis)
d. Extensor digiti minimi
e. Extersor carpi ulnaris
13. Regarding the cubital fossa
a. The radial nerve lies medial to the biceps tendon
b. The median nerve lies medial to the brachial artery <=
c. Biceps form the lateral border
d. The median cephalic vein lies on the bicipital aponeurosis
e. Brachioradialis forms the medial border
14. Regarding the muscles arising from the common flexor origin
a. Flexor carpi radialis, flexor digitorum superficialis and flexor carpi ulnaris have additional origins <=
b. Flexor carpi radialis is supplied by the radial nerve
c. All are supplied by C6, 7 nerve roots
d. Flexor carpi ulnaris is supplied by the lateral cord
e. The tendon of flexor carpi radialis lies medial to that of palmaris longus
15. Regarding forearm structures
a. The common interosseous artery is a branch of the ulnar artery
b. The posterior interosseous nerve enters the forearm by passing between the 2 heads of supinator
c. The median nerve passes between the two heads of pronator teres
d. The anterior interosseous artery perforates the interosseous membrane
e. All of the above <=
16. Regarding the elbow joint
a. The capsule is not attached to the radius <=
b. The head of the radius articulates with the trochlea
c. The joint is supplied by the musculocutaneous and ulnar nerves only
d. The carrying angle is due to the lower trochlear margin medially
e. The radial collateral ligament has three bands
17. In the cubital fossa, which is correct
a. Posterior interosseous nerve lies lateral to radial nerve
b. Medial cutaneous nerve of the forearm lies medial to basilic vein <=
c. ?
d. ?
e. ?
18. Regarding the attachment of flexor digitorum profundus
a. Olecranon and anterior surface of radius
b. It is the strongest forearm muscle <=
c. ?
d. ?
e. ?
19. Regarding lymphatic drainage of the arm
a. Superficial lymphatics follow volar aspect
b. Superficial lymphatics travel with arteries
c. Deep lymphatics travel with veins <=
d. The hand drains into apical lymph nodes in the axilla
e. ?
20. The following muscles are supplied by the median nerve except:
a. Flexor digitorum superficialis
b. Flexor carpi radialis
c. Flexor carpi ulnaris <=
d. Flexor pollicis longus
e. Palmaris longus
21. Regarding the elbow joint
a. The posterior band of the ulnar collateral ligament is the strongest
b. The radial collateral ligament consists of three bands
c. Capsule is attached to the radius and ulna
d. The annular ligament has no attachment to the radius <=
e. It is supplied by the radial and ulnar nerves only
22. Elbow capsule attachments include:
a. Medial and lateral epicondylar
b. Radial head
c. Common flexor origin
d. Annular ligament of radioulnar joint <=
e. All of the above
23. Flexor digitorum profundus:
a. Tendons separate proximal to the flexor retinaculum
b. Originates from the common origin from the medial epicondyle of the humerus
c. May be tested by making a fist against resistance
d. Is supplied equally by the median and ulnar nerves in the majority of people <=
e. Is a powerful wrist flexor
24. Regarding the extensor muscles of the forearm;
a. All arise from the lateral epicondyle of the humerus
b. Supplied by the ulnar nerve
c. Extensor carpi radialis longus abducts the wrist <=
d. Tendons do not fuse with deep fascia
e. Supplied entirely by posterior interosseous artery
25. In the cubital fossa;
a. The median nerve lies lateral to the brachial artery
b. The ulnar artery lies superficial to pronator teres
c. The radial artery originates from the brachial artery
d. The radial nerve lies medial to the biceps tendon
e. The nerve to pronator teres is derived from the radial nerve
26. The deepest structure in the mid-forearm is
a. Median nerve – between FDS and FDP
b. Basilic vein
c. Radial artery
d. Flexor pollicis longus <= on radius
e. Ulnar nerve – FCU and FDP
27. palmaris longus
a. is absent in 40% of people – 14%
b. originally was an extensor of the MCP joints
c. arises from the medial epicondyle <=
d. inserts into the pisiform
e. is supplied by the radial nerve
28. flexor digitorum profundus;
a. has its action enhanced by wrist extension <=
b. is supplied 10% of the time entirely by the ulnar nerve
c. partly inserts into the flexor retinaculum
d. assists pronator quadratus in powerful pronation
e. all of the above
29. the radial artery
a. lies on the brachioradialis in the upper forearm
b. in its medial third has the radial nerve medial to it
c. forms both the anterior and posterior carpal arches <=
d. passes between the tendons of abductor pollicis longus and extensor pollicis brevis
e. all of the above