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Damage to the posterior arch of the atlas vertebra would most likely endanger?
The vertebral artery
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Which of the muscles receive(s) innervation derived from the posterior division or cord of the brachial plexus?
All of the following: latissimus dorsi, deltoid, extensor carpi radialis longus, teres major
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To determine if the recurrent branch of the median nerve is injured, one should test:
opposition of thumb - opposed by opponens pollicis m.
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Which nerve or artery are most likely to be damaged by a fracture of the medial epicondyle of the humerus?
ulnar nerve
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The dorsal scapular artery provides the principal blood supply to:
rhomboid major muscle
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The area most in jeopardy because of loss of the common interosseous artery is:
Extensor compartment of forearm
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The biceps brachii muscle can:
flex the forearm, flex the arm. supinate
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A patient with severe injury to his arm displays the following functional deficits: very weak flexion of forearm, some weakness in flexion of the arm, and severe weakness in supination. The damaged nerve is the:
musculocutaneous nerve - innervates the Coracobrachialis, Biceps Brachii, and Brachialis muscles.
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Deep fascia over forearm extensors:
attaches to radius and ulna AND is important in helping venous blood in conjunction with muscle activity to return
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Branches from the medial cord of the brachial plexus are derived primarily from:
C8 and T1
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Extension at the metacarpophalangeal joints is accomplished by :
extensor digitorum (communis), extensor indicis proprious and extensor difiti minimi mm.
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Flexion as the metacarpophalangeal joints is accomplished by the:
- Flexor digitorum superficialis and profundus, lumbricals, and interossei.
- In the case of the little finger is assisted by the flexor digiti minimi brevis
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Flexion of thumb is accomplished by:
Flexors pollicis longus and brevis
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Extension of thumb is accomplished by:
extensors pollicis longus and brevis
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The only muscle capable of flexing the distal interphalangeal joints of each of the four fingers (2-5):
Flexor digitorum profundus
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A dermatome is defined as the area of skin supplied by:
dorsal root of a spinal nerve
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In attempting to anesthetize areas supplied by the-median nerve distal to the wrist, an injection should be attempted:
lateral to the tendon of the palmaris longus
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The' ligamenta flava attach:
vertebral laminae
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The nerve which is geographically most closely related to the brachial artery in the cubital fossa is the:
median nerve
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a membrane firmly attached to spinal cord
pia matter
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contains CSF
subarachnoid space
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contains a complex system of veins and some fatty tissue
epidural space
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continuous with the epineurium of peripheral nerves
dura mater
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contains muscle which can flex the arm
anterior axillary fold
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subscapularis muscle
posterior axillary fold
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connects supraspinous fossa with infraspinous fossa
great scapular notch
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pectoralis major muscle where is it?
anterior axillary fold
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bony landmark associated with namng the three portions of the axillary artery
coracoid process of scapula
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Which nerve(s) can be responsible for sensation on the dorsolateral aspect of the hand?
radial, musculocutaneous
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The subscapularis muscle:
receives a nerve or nerves from the posterior cord of the brachial plexus; forms part of the posterior wall of the axilla; is a ","otator cuff': muscle and holds the humerus in the glenoid fossa; rotates the humerus medially
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Which of the following arteries are commonly direct branches of the axillary artery?circumflex scapular, transverse cervical, suprascapular, thoracoacromial
-suprascapular
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Which of the following contribute to "winged scapula"?
paralyzed serratus anterior muscle; a damaged long thoracic nerve
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