Question 1

The motor and sensory nerve supply to the upper limb is via the _________________.&#10;A) axilla&#10;B) brachial plexus&#10;C) lumbar nerve 5&#10;D) ulnar nerve&#10;E) suprascapular nerve

Accepted Answer

Brachial plexus. The entire motor and sensory nerve supply to the upper limb is via the brachial plexus.

Question 2

The ________ is the superoposterior portion of the trochlear notch of the ulna and forms the bony prominence of the elbow.&#10;A) acromion&#10;B) olecranon&#10;C) coronoid fossa&#10;D) capitulum&#10;E) clavicle

Accepted Answer

Olecranon. The olecranon is the superoposterior portion of the trochlear notch of the ulna and forms the bony prominence of the elbow.

Question 3

The intrinsic muscles of the hand that enable the fine positioning of the fingers and thumb for skilled movements include all of the following except the _____________________.&#10;A) supinator&#10;B) flexor pollicis brevis&#10;C) abductor pollicis brevis&#10;D) opponens pollicis&#10;E) abductor digiti minimi

Accepted Answer

Supinator. All of the aforementioned are intrinsic muscles of the hand except the supinator muscle. The supinator arises from the humerus and ulna and wraps around the lateral and posterior aspects of the radius.

Question 4

The __________ muscle is a large triangular muscle on the anterior chest wall that can flex, medially rotate, and adduct the arm.&#10;A) pectoralis minor&#10;B) subclavius&#10;C) serratus anterior&#10;D) pectoralis major&#10;E) trapezius

Accepted Answer

Pectoralis major. The pectoralis major is a large triangular muscle on the anterior chest wall that can flex, medially rotate, and adduct the arm.

Question 5

Venous drainage in the upper arm begins in the hand and culminates in the _________ vein in the root of the neck.&#10;A) cephalic&#10;B) antebrachial&#10;C) subclavian&#10;D) basilic&#10;E) cubital

Accepted Answer

Subclavian. The deep veins of the upper limb begin in the hand and ultimately collect as the axillary vein, which ascends over the first rib to become the subclavian vein in the root of the neck.

Question 6

The _________ artery and its branches provide the entire arterial supply to the upper limb.&#10;A) radial&#10;B) ulnar&#10;C) digital&#10;D) subclavian&#10;E) femoral

Accepted Answer

Subclavian. The arterial supply to the upper limb is entirely from the subclavian artery and its branches.

Question 7

The shoulder girdle is composed of the _____________________________.&#10;A) clavicle and acromion&#10;B) scapula and clavicle&#10;C) humerus and clavicle&#10;D) humerus and scapula&#10;E) scapula and ulna

Accepted Answer

Scapula and clavicle. The shoulder girdle consists of two bones, the scapula (shoulder blade) and the clavicle (collarbone).

Question 8

The ________ is the single bone of the upper arm.&#10;A) ulna&#10;B) scapula&#10;C) clavicle&#10;D) humerus&#10;E) radius

Accepted Answer

Humerus. The humerus is the only bone of the upper arm. The radius and ulna are bones of the forearm.

Question 9

What are the four rotator cuff muscles?&#10;A) Deltoid, teres major, supraspinatus, and infraspinatus&#10;B) Latissimus dorsi, supraspinatus, infraspinatus, and teres minor&#10;C) Supraspinatus, infraspinatus, teres minor, and subscapularis&#10;D) Teres major, teres minor, deltoid, and latissimus dorsi&#10;E) Teres major, teres minor, deltoid, and supraspinatus

Accepted Answer

Supraspinatus, infraspinatus, teres minor, and subscapularis. The four rotator cuff muscles are the supraspinatus, infraspinatus, teres minor, and subscapularis. All the other muscles named are in the shoulder or arm, but they are not rotator cuff muscles.

Question 10

The _________ joint is an articulation between the spherical head of the humerus and the shallow depression of the glenoid fossa of the scapula and is a ball-and-socket configuration that allows three degrees of freedom.

A) intracapsular
B) scapulothoracic
C) acromioclavicular
D) sternoclavicular
E) glenohumeral

Accepted Answer

Glenohumeral. The glenohumeral, or shoulder, joint is an articulation between the head of the humerus and the shallow depression of the glenoid fossa of the scapula. It is a ball-and-socket configuration that allows three degrees of freedom and a considerable range of movement.

Deck 9: The Upper Limb