Anatomy Colloq upper Flashcards
Most of the muscles that act on the shoulder girdle and upper limb joints are supplied by branches of the brachial plexus. Which of the following is not?
trapezius teres minor latissimus dorsi rhomboid major levator scapulae
trapezius
Increasing the muscle mass and tone is the aim of many people who workout at the gym. This is done by contracting the muscle against resistance. If you want to increase the muscle mass of the latissimus dorsi muscle, which of the following actions would you be most likely to perform?
depression of the scapula abduction of the arm extension of the arm flexion of the arm lateral rotation of the arm
extension of the arm
The long head of the biceps brachii muscle arises from the:
infraglenoid tubercle acromion process acromion process coracoid process clavicle supraglenoid tubercle
supraglenoid tubercle
The major function of the muscles in the anterior compartment of the forearm is
abduction flexion adduction medial rotation lateral rotation
flexion
In this patient, paralysis of the supinator muscle only slightly affects the ability to supinate due to the unimpaired action of the….
biceps brachii
Which of the following muscles does NOT rotate the arm medially (or internally)?
subscapularis supraspinatus latissimus dorsi pectoralis major anterior fibers of the deltoid
Supraspinatus
Damage to the coracobrachialis muscle would weaken which motion of the arm and forearm?
extension rotation flexion supination abduction
Flexion
The uppermost part of the rotator cuff of the shoulder is the tendon of the
deltoid teres minor teres major subscapularis supraspinatus
supraspinatus
Which of the following muscles is a lateral rotator of the arm? Infraspinatus subscapularis latissimus dorsi teres major anterior fibers of the deltoid
infraspinatus
Which of the following wrist bones is found in the proximal row?
Trapezium Trapezoid Capitate Hamate Pisiform Scaphoid
Scaphoid
The muscle that forms the bulk of the anterior axillary fold is the: latissimus dorsi pectoralis major subscapularis teres major teres minor
Pectoralis major
The infraglenoid tubercle serves as an attachment for the: long head of the biceps long head of the triceps medial head of the triceps coracobrachialis subscapularis
long head of the triceps
A physical sign known as “winged scapula” suggests the loss of function to which of the following muscles?
rhomoid major levator scapulae latissimus dorsi serattus anterior trapezius
Serratus anterior
Medial wall of the axilla is formed by which of the following muscles?
Serattus anterior
The lateral boundary of the cubital fossa is formed by the:
flexor carpi radialis tendon of the biceps muscle brachialis muscle brachioradialis pronator teres
brachioradialis
Which of the following muscles does NOT extend the wrist?
extensor carpi radialis longus extensor carpi radialis brevis extensor carpi ulnars extensor digitorum brachioradialis
brachioradialis
Abduction of the thumb is when it is moved: laterally from the palm at right angles to the palmar surface along the side of the index finger straight across the palm none of the above
at right angles to the palmar surface
Which joint serves as the only bony attachment of the superior limb to the axial skeleton?
glenohumeral acromioclavicular scapulothoracic sternoclavicular costoclavicular
sternoclavicular
The only rotator cuff muscle that does not contribute to rotation of the arm is the: teres minor infraspinatus supraspinatus subscapularis
supraspinatus
A large muscle that arises from two heads flexes and medially rotates the arm. It is innervated by nerves arising from different cords of the brachial plexus. This is the:
latissimus dorsi trapezius deltoid subscapularis pectoralis major
Pectoralis major
Which carpal bone articulates with the radius? trapezoid scaphoid hamate capitate trapezium
scaphoid
All of the following bony landmarks are visible on a skeleton when viewed directly from behind (posterior view) EXCEPT:
medial epicondyle greater tubercle spiral groove lesser tubercle olecranon process
lesser tubercle
Inability to flex the distal phalanx of the middle finger indicates injury to which of these muscles?
lumbrical dorsal interosseous flexor digitorum superficialis flexor digitorum profundus palmar interosseous
Flexor digitorum profundus
The anterior wall of the vertebral canal is formed by:
ligamentum flava interspinal ligaments posterior longitudinal ligament anterior longitudinal ligament ligamentum nuchae
posterior longitudinal ligament