Quiz questions Flashcards
1
Q
Which of the following is incorrect pertaining to the clavicle?
A) It is attached via ligaments to the coracoid process.
B) The superior surface is grooved for the subclavian artery.
C) After a fracture, the medial segment is raised by the sternocleidomastoid muscle.
D) Fractures are almost always accompanied by acromioclavicular dislocation.
E) Patients with fractured clavicles typically need to support the ipsilateral upper limb with the contralateral one.
A
D
2
Q
9. The trapezius can perform all of the following functions except: A) protract the scapula. B) retract the scapula. C) elevate the scapula. D) depress the scapula. E) rotate the scapula.
A
A
3
Q
- In which of the following activities would the latissimus dorsi be least important?
A) using the crawl stroke while swimming
B) using the backstroke while swimming
C) using the breaststroke while swimming
D) performing a chin-up
E) paddling a canoe
A
B
4
Q
- Which of the following is incorrect pertaining to the supraspinatus muscle?
A) It is innervated by a nerve that also supplies cutaneous innervation to the lateral surface of the proximal arm.
B) It initiates the process of abduction of the arm.
C) It is associated with painful abduction when the subacromial bursa is inflamed.
D) It is one of four muscles comprising the rotator cuff.
E) During arm abduction against resistance, the muscle can be palpated.
A
A
5
Q
- The sternoclavicular joint:
A) is less likely to dislocate than the clavicle is to fracture in falls on the outstretched hand.
B) is a symphysis.
C) can ankylose (stiffen) without causing significant loss in shoulder mobility.
D) is dependent on muscles for its integrity.
E) involves the clavicle, sternum, and first two costal cartilages.
A
A
6
Q
The nerve most likely to be injured in a glenohumeral joint dislocation is the: A) radial. B) medial. C) ulnar. D) axillary. E) supraclavicular.
A
D
7
Q
- Which of the following associations pertaining to the brachial plexus is incorrect?
A) pre-fixed brachial plexus—compression of inferior trunk by 1st rib
B) wounds in the posterior triangle of the neck—brachial plexus injuries
C) acute brachial plexus neuritis—severe onset of shoulder pain
D) hyperabduction syndrome—paresthesia
E) inferior brachial plexus injuries—clawhand
A
A
8
Q
- What is the correct order of structures in the cubital fossa from lateral to medial?
A) brachial artery, median nerve, biceps tendon
B) brachial artery, biceps tendon, median nerve
C) median nerve, brachial artery, biceps tendon
D) biceps tendon, brachial artery, median nerve
E) biceps tendon, median nerve, brachial artery
A
D
9
Q
- The brachioradialis: A) has a tendon that passes deep to the flexor retinaculum. B) attaches to the medial epicondyle of the humerus. C) is innervated by the radial nerve. D) acts at both the elbow and wrist joints. E) extends the elbow.
A
C
10
Q
- Which of the following statements is incorrect pertaining to the extensors carpi radialis longus and brevis muscles? A) When only the two muscles act together, wrist extension and abduction is produced. B) When the two muscles act with the extensor carpi ulnaris, only wrist extension is produced. C) When the two muscles act with the flexor carpi ulnaris, only wrist abduction is produced. D) One of the muscles is innervated by the ulnar and the other by the deep branch of the radial nerve. E) Both attach to the humerus.
A
D
11
Q
- Which of the following is incorrect pertaining to the anatomic ìsnuffboxî? A) It is bounded anteriorly by the tendons of abductor pollicis longus and extensor pollicis brevis. B) It is bounded posteriorly by the tendon of extensor pollicis longus. C) The radial artery traverses its floor. D) The superficial branch of the radial nerve emerges from it. E) The radial styloid process can be palpated within it.
A
D
12
Q
- A laceration of the thenar eminence that results in complete section of the recurrent branch of the median nerve would result in: A) claw hand. (Caused by ulnar nerve injury) B) ape hand. C) loss of all ability to abduct the thumb. D) loss of all ability to adduct the thumb. E) loss of all ability to flex the metacarpophalangeal joint of the thumb.
A
B
13
Q
- Which of the following is correct pertaining to the interossei and lumbrical muscles of the hand? A) The palmar interossei, dorsal interossei, and lumbricals together can produce flexion at the metacarpophalangeal joints and extension at the interphalangeal joints. B) The palmar interossei, dorsal interossei, and lumbricals together can produce extension at the metacarpophalangeal joints and flexion at the interphalangeal joints. C) The palmar and dorsal interossei produce abduction of the fingers, whereas the lumbricals can produce adduction. D) The palmar interossei and lumbricals can produce adduction of the fingers, whereas the dorsal interossei can produce abduction. E) The dorsal interossei and lumbricals can produce abduction of the fingers, whereas the palmar interossei can produce adduction
A
A
14
Q
- Opposition of the thumb: A) primarily involves rotation at the 1st metacarpophalangeal joint. B) primarily involves contraction of a muscle that lies deep to the abductor pollicis brevis. C) primarily involves contraction of a muscle that is innervated by the ulnar nerve. D) is a movement that requires lateral rotation of the thumb. E) is a movement that requires flexion of the thumb’s interphalangeal joint
A
B
15
Q
- ìWrist-dropî is associated with: A) unopposed action of the lumbricals and interossei. B) rupture of the extensor digitorum. C) avulsion of the olecranon. D) section of the radial nerve at the mid-humeral level. E) section of the superficial branch of the radial nerve.
A
Wrist drop: Wrist drop, is a medical condition in which the wrist and the fingers cannot extend at the metacarpophalangeal joints. The wrist remains partially flexed due to an opposing action of flexor muscles of the forearm. As a result, the extensor muscles in the posterior compartment remain paralyzed.
D
