Deck 1: Anatomy and Physiology of the Upper Extremity

Question 1

Pectoralis Major:

A)is quadrilateral in shape
B)has a head that arises from the posterior surface of the clavicle
C)inserts into the medial lip of the bicipital groove
D)lies between biceps and the humeral shaft
E)is supplied by all 5 segments of the brachial plexus

Answer 1

is supplied by all 5 segments of the brachial plexus

Question 2

Latissimus Dorsi:

A)arises from the spinous processes of T2-L5
B)spirals around the upper border of teres major
C)arises from the iliac crest
D)inserts into the lesser tuberosity
E)externally rotates

Answer 2

arises from the iliac crest

Question 3

The sternoclavicular joint:

A)communicates with the manubriosternal joint
B)is mostly stabilised by the costoclavicular lig
C)is the fulcrum of movements at the sternoclavicular joint
D)contains 2 fibrocartilage discs
E)is supplies by C8 and T1

Answer 3

is mostly stabilised by the costoclavicular lig

Question 4

Teres major:

A)arises from the medial border of the scapula
B)forms the lower border of the quadrangular space
C)forms the lateral border of the triangular space
D)is supplied by the axillary nerve
E)largely acts to extend the arm

Question 5

The axillary artery:

A)arises from the vertebral artery
B)is divided into 3 parts by teres major
C)is clasped in its 3rd part by the cords of the brachial plexus
D)has no branches in its 3rd part
E)supplies the pectoral muscles via the superior thoracic a.

Question 6

With regard to the brachial plexus:

A)the axillary n is derived from the lateral cord
B)the radial nerve is derived from C7, 8 and T1
C)the nerve to subclavius is the only branch from the trunks
D)there are 7 divisions of the trunks
E)the roots lie between the scalene muscles

Question 7

An injury to the middle trunk of the brachial plexus:

A)would mean that C8 sensation is altered
B)will manifest in the medial cord
C)will affect the median nerve
D)will affect the long thoracic nerve
E)all of the above

Question 8

The rotator cuff is formed by all of the below except:

A)subscapularis
B)supraspinatus
C)infraspinatus
D)teres minor
E)teres major

Question 9

The subacromial bursa:

A)is strengthened anteriorly by the glenohumeral ligaments
B)lies under the coracoacromial lig
C)envelopes the distal end of the coracoid process
D)if inflamed will be more tender when abducted
E)all of the above

Question 10

With regards to the biceps brachii:

A)the long head arises from the greater tuberosity
B)the short head arises from the acromium
C)supinates forearm
D)supplied by median n
E)its 2 heads merge in the upper arm

Question 11

The brachial artery:

A)lies lateral to the basilic vein
B)lies anterior to the cephalic vein
C)is crossed posteriorly by the median n
D)runs parallel but deep to the profunda a
E)is the continuation of the subclavian a

Question 12

The triceps:

A)is a misnomer because it has 2 heads
B)supplied by radial n
C)stabilises shoulder in adduction
D)has its nerve compromised in humerus shaft #
E)supplied by post. IO artery

Question 13

In the cubital fossa:

A)the median n lies lateral to the brachial a
B)the ulnar a is superficial to pronator teres
C)the radial a originates from the brachial a
D)the radial n lies medial to the biceps tendon
E)the nerve to pronator teres is derived from the radial n

Question 14

The deepest structure in the mid forearm is:

A)median n
B)basilic v
C)radial a
D)F P L
E)Ulnar n

Question 15

Palmaris Longus:

A)is absent in 40 % people
B)originally was an extensor of the MCP joints
C)arises from the medial epicondyle
D)inserts into the pisiform
E)supplied by radial n

Question 16

F D P

A)has its action enhanced by wrist extension
B)is supplied entirely by ulnar n in 10% people
C)partly inserts in to the flexor retinaculum
D)assists pronator quadratus in powerful pronation
E)all of the above

Question 17

Radial a:

A)lies on the brachioradialis in the upper forearm
B)in its middle third has the radial n medial to it
C)forms both the anterior and posterior carpal arches
D)passes between the tendons of APL and EPB
E)all of the above

Question 18

Anatomical snuff box:

A)has EPL on its ulnar side
B)lies between EPL and APL
C)has the trapezoid palpable at its base
D)is most obvious with the thumb fully abducted
E)contains the post IO artery

Question 19

The flexor retinaculum attaches to all the following except:

A)scaphoid
B)hamate
C)trapezium
D)pisiform
E)captitate

Question 20

Loss of the greater tuberosity leads to loss of which movement

A)abduction and lateral rotation
B)adduction and medial rotation
C)abduction and medial rotation
D)adduction and lateral rotation
E)lateral rotation

Question 21

Myotome of shoulder abduction?

A)C5
B)C5, C6
C)C5, C6, C7
D)C6, C7, C8
E)C6, C7

Question 22

Which is false with respect to the lateral intermuscular septum:

A)origin of medial head of triceps
B)pierced by ant branch of profunda a
C)pierced by radial n
D)pierced by post branch of profunda a
E)brachioradialis is anterior

Question 23

Which doesn't pierce the clavipectoral fascia

A)lymphatics
B)cephalic vein
C)lat pectoral n
D)med pectoral n
E)thoracoacromial a

Question 24

Serratus anterior

A)Medially rotates shoulder
B)Protracts scapula
C)Is unipennate
D)Arises from the upper 6 ribs
E)Is supplied by the thoracodorsal a