EOR TEST 2018 Flashcards
- The pectoralis major muscle.
a. Lies superficial to the breast
b. Originates from the 3rd to the 5th costal cartilages
c. Is innervated by the lateral pectoral nerve
d. ls a strong flexor of the arm
e. Inserts into the lateral lip of the intertubercular sulcus (groove) of the humerus
C,E
The female breast
a. Has the nipple usually overlying the 4” intercostal space in a nulliparous female
b. Receives arterial blood supply from the anterior intercostal arteries
c. Lies over the pectoralis major, serratus anterior and external oblique abdominis T
d. Is drained by the lateral group of axillary lymph nodes
e. Lactiferous ducts open in the areola
A,B,C
The glenohumeral joint:
a. Often dislocates posteriorly
b. Is dynamically supported by the glenohumeral ligaments
c. innervated by the axillary, suprascapular and lateral pectoral nerve
d. The subacromial bursa opens into the glenohumeral joint cavity
e. The long head of triceps prevents inferior dislocation of the joint
D,E
The scapular anastomosis:
a. Provides collateral circulation between the subclavian and brachial arteries
b. Provides collateral circulation between the subclavian artery and third part of
the axillary artery
c. Receives contributions from branches of the thyrocervical trunk
d. Receives contributions from the lateral thoracic artery
e. Receives contributions from the subscapular artery
B,C,E
With regard to the axillary artery and its branches:
a. The axillary artery begins as a continuation of the subclavian artery
b. The axillary artery and its branches are related to the trunks of the brachial plexus
C. The lateral thoracic artery supplies the breast
d. The posterior circumflex artery passes through the triangular space
e. The thoracodorsal artery branches directly from the first part of the axillary
artery
A,C
The brachial plexus:
a. Is formed by union of the ventral rami of C5 - C8 and T1 nerves
b. The trunks emerge between scalenus anterior and scalenus medius muscles
C. Anterior division of the inferior trunk continues as the medial cord
d. The median nerve is derived from the lateral and medial cords
e. Injury to the inferior trunk results in Waiter’s tip position’ of the upper limb
A,C,E
In the arm:
a. Profunda brachii artery is closely related to the surgical neck of the humerus
b. Biceps brachii flexes and supinates the forearm
C. The brachial artery can be palpated medial to the biceps muscle
d.) Surgical neck fractures cause weakness of triceps muscle
e. The musculocutaneous nerve innervates the biceps.
B,C,E
With regard to the cubital fossa, the:
a. Roof is made up of the bicipital aponeurosis and fascia
b. Contents include the terminal part of the axillary artery
C. Median nerve lies anterior and superficial to the bicipital aponeurosis
d. Lateral border is formed by the brachioradialis muscle
e. Medial border is formed by the pronator teres muscle
A,D,E
A fracture of the humerus at the:
a. Surgical neck may result in damage to the axillary nerve T
b. Spiral/radial groove may result in the condition referred to as wrist drop’
C. Distal end may result in damage to the musculocutaneous nerve
d. Medial epicondyle may result in damage to the ulnar nerve
e. Trochlear end may injure the profunda brachii artery
A,B,D
The flexor compartment of the forearm:
a. The flexor muscles in the forearm are arranged int of our groups
b. Pronator teres is part of the superficial group of muscles
c. Pronator quadratus is part of the superficial group of muscles
d. The radial artery is the main supply to the flexor compartment
e. The ulnar nerve supplies flexor carpi ulnaris and the medial half of flexor digitorum profundus
A,B,E
The carpal tunnel:
a. Is bordered by the extensor retinaculum anteriorly
b. The lateral pillar is formed by the scaphoid and trapezium
c. Transmits the four tendons of the flexor digitorum superficialis muscle
d. The tendon of flexor pollicis longus passes through thetunnel within its own tendinous sheath
e) Compression of the median nerve within the tunnel can lead to inability to oppose the thumb
B,C,E
The radius:
a. Possesses a head, which articulates with the capitulum of the humerus
b. Provides attachment to the tendon of triceps brachii on its posterior aspect
c. Provides attachment for the tendon of biceps brachii on the radial tuberosity
d. Possesses a palpable styloid process distally T
e. The head is held in position by the annular ligament
A,C,D,E
The radial nerve in the forearm:
a. Passes between the heads of pronator teres
b. Its superficial branch traverses the roof of the anatomical snuffbox
C. Gives rise to the posterior interosseous nerve
d. Supplies all the forearm extensor muscles
e. Severance of the deep branch results in inability to extend the thumb
B,C,D,E
Regarding the anatomical snuff box, the:
a. Anterior border is formed by the tendons of abductor policis longus and extensor pollicis brevis b. Posterior border is formed by the tendon of abductor pollicis longus
c. Scaphoid and trapezium are found in the floor
d. Radial artery passes through the anatomical snuffbox
e. Snuffbox is visible when the thumb is flexed
A,D
Regarding the hand, the:
a. Muscles of the thenar eminence are mainly responsible for opposition of the thumb
b. Ulnar artery is the main contributor to the superficial palmar arterial arch
C. Four lumbrical muscles are all innervated by the median nerve F
d. Palmar interosseous muscles are responsible for abduction of the fingers
e. Ulnar nerve supplies the skin of the palmar surface of the little finger
B,E
